View Filing Data

Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2012	Jul. 30, 2012
Document and Entity Information
Entity Registrant Name	Clean Energy Fuels Corp.
Entity Central Index Key	0001368265
Document Type	10-Q
Document Period End Date	Jun. 30, 2012
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		86,929,434
Document Fiscal Year Focus	2012
Document Fiscal Period Focus	Q2

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 172,715	$ 238,125
Restricted cash	7,067	4,792
Short-term investments	37,079	33,329
Accounts receivable, net of allowance for doubtful accounts of $712 and $859 as of December 31, 2011 and June 30, 2012, respectively	63,565	56,455
Other receivables	20,976	19,601
Inventory, net	36,470	35,287
Prepaid expenses and other current assets	15,132	14,027
Total current assets	353,004	401,616
Land, property and equipment, net	355,017	277,334
Restricted cash	21,348	54,804
Notes receivable and other long-term assets	16,853	16,650
Investments in other entities	16,954	16,459
Goodwill	73,741	73,741
Intangible assets, net	100,749	102,103
Total assets	937,666	942,707
Current liabilities:
Current portion of long-term debt and capital lease obligations	33,784	22,925
Accounts payable	31,733	36,668
Accrued liabilities	29,151	28,255
Deferred revenue	44,389	21,267
Total current liabilities	139,057	109,115
Long-term debt and capital lease obligations, less current portion	253,830	266,497
Other long-term liabilities	22,620	22,687
Total liabilities	415,507	398,299
Commitments and contingencies (Note 16)
Stockholders' equity:
Preferred stock, $0.0001 par value. Authorized 1,000,000 shares; issued and outstanding no shares
Common stock, $0.0001 par value. Authorized 149,000,000 shares; issued and outstanding 85,433,258 shares and 86,790,309 shares at December 31, 2011 and June 30, 2012, respectively	9	9
Additional paid-in capital	760,938	741,650
Accumulated deficit	(242,758)	(199,559)
Accumulated other comprehensive loss	225	(1,216)
Total Clean Energy Fuels Corp. stockholders' equity	518,414	540,884
Noncontrolling interest in subsidiary	3,745	3,524
Total stockholders' equity	522,159	544,408
Total liabilities and stockholders' equity	$ 937,666	$ 942,707

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Condensed Consolidated Balance Sheets
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 859	$ 712
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, Authorized shares	1,000,000	1,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, Authorized shares	149,000,000	149,000,000
Common stock, issued shares	86,790,309	85,433,258
Common stock, outstanding shares	86,790,309	85,433,258

Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenue:
Product revenues	$ 57,705	$ 61,523	$ 123,481	$ 120,055
Service revenues	12,137	7,590	19,995	14,399
Total revenues	69,842	69,113	143,476	134,454
Cost of sales:
Product cost of sales	43,691	46,888	95,593	90,737
Service cost of sales	4,839	3,536	8,823	6,690
Derivative (gains) losses:
Series I warrant valuation	(8,899)	(4,835)	4,607	(1,535)
Selling, general and administrative	27,916	21,653	52,766	39,683
Depreciation and amortization	8,907	7,632	17,051	14,842
Total operating expenses	76,454	74,874	178,840	150,417
Operating loss	(6,612)	(5,761)	(35,364)	(15,963)
Interest expense, net	(3,321)	(1,506)	(7,023)	(2,327)
Other income (expense), net	(1,177)	187	(336)	788
Income from equity method investments	72	164	163	375
Loss before income taxes	(11,038)	(6,916)	(42,560)	(17,127)
Income tax benefit (expense)	(172)	1,177	(418)	1,912
Net loss	(11,210)	(5,739)	(42,978)	(15,215)
Loss (income) of noncontrolling interest	(84)	120	(221)	(157)
Net loss attributable to Clean Energy Fuels Corp.	$ (11,294)	$ (5,619)	$ (43,199)	$ (15,372)
Loss per share attributable to Clean Energy Fuels Corp.
Basic (in dollars per share)	$ (0.13)	$ (0.08)	$ (0.50)	$ (0.22)
Diluted (in dollars per share)	$ (0.13)	$ (0.08)	$ (0.50)	$ (0.22)
Weighted average common shares outstanding
Basic (in shares)	86,625,655	70,302,782	86,155,678	70,199,963
Diluted (in shares)	86,625,655	70,302,782	86,155,678	70,199,963

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss)	$ (11,210)	$ (5,739)	$ (42,978)	$ (15,215)
Other comprehensive income, net of tax:
Foreign currency translation adjustments	24	6	(309)	(697)
Unrealized losses on available-for-sale securities	(100)		(216)
Unrecognized gains on derivatives	1,251	505	1,966	1,213
Total other comprehensive income, net of tax	1,175	511	1,441	516
Comprehensive income (loss)	(10,035)	(5,228)	(41,537)	(14,699)
Clean Energy Fuels Corp.
Net income (loss)	(11,294)	(5,619)	(43,199)	(15,372)
Other comprehensive income, net of tax:
Foreign currency translation adjustments	24	6	(309)	(697)
Unrealized losses on available-for-sale securities	(100)		(216)
Unrecognized gains on derivatives	1,251	505	1,966	1,213
Total other comprehensive income, net of tax	1,175	511	1,441	516
Comprehensive income (loss)	(10,119)	(5,108)	(41,758)	(14,856)
Noncontrolling Interest
Net income (loss)	84	(120)	221	157
Other comprehensive income, net of tax:
Comprehensive income (loss)	$ 84	$ (120)	$ 221	$ 157

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

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+ Details

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net loss	$ (42,978)	$ (15,215)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	17,051	14,842
Provision for doubtful accounts and notes	374	255
Derivative (gain) loss	4,607	(1,535)
Stock-based compensation expense	10,448	6,932
Amortization of debt issuance cost	230	114
Accretion of notes payable	1,037	1,388
Gain on contingent consideration for acquisitions	(4,294)	(700)
Changes in operating assets and liabilities, net of assets and liabilities acquired:
Accounts and other receivables	(8,809)	18,595
Inventory	(231)	(9,004)
Margin deposits on futures contracts	1,276	2,981
Prepaid expenses and other assets	(2,830)	(2,940)
Accounts payable	(4,935)	(2,066)
Accrued expenses and other	22,803	(3,761)
Net cash provided by (used in) operating activities	(6,251)	9,886
Cash flows from investing activities:
Purchases of short-term investments	(21,210)
Maturities of short-term investments	17,244
Purchases of property and equipment	(89,258)	(27,585)
Change in restricted cash	31,181	(27,413)
Investments in other entities	(1,024)	(2,700)
Net cash used in investing activities	(63,067)	(57,698)
Cash flows from financing activities:
Proceeds from issuance of common stock and exercise of stock options	7,836	733
Proceeds from capital lease obligations and debt instruments	384	41,850
Contingent consideration paid relating to business acquisitions	(350)	(2,159)
Proceeds from revolving line of credit	24,418	21,945
Proceeds from minority interest DCE equity contribution		417
Payments for debt issuance costs		(1,767)
Repayment of borrowing under revolving line of credit	(23,136)	(16,665)
Repayment of capital lease obligations and debt instruments	(6,111)	(15,497)
Net cash provided by financing activities	3,041	28,857
Effect of exchange rates on cash and cash equivalents	867	(963)
Net decrease in cash	(65,410)	(19,918)
Cash, beginning of period	238,125	55,194
Cash, end of period	172,715	35,276
Supplemental disclosure of cash flow information:
Income taxes paid	680	266
Interest paid, net of approximately $125 and $3,184 capitalized, respectively	$ 6,030	$ 714

Condensed Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Condensed Consolidated Statements of Cash Flows
Interest paid, capitalized	$ 3,184	$ 125

General

6 Months Ended

Jun. 30, 2012

General

General

Note 1—General

Nature of Business: Clean Energy Fuels Corp., together with its majority and wholly owned subsidiaries (hereinafter collectively referred to as the “Company”) is engaged in the business of selling natural gas fueling solutions to its customers, primarily in the United States. The Company began selling certain equipment and services internationally in 2010 as a result of its acquisition of I.M.W. Industries, Ltd. (“IMW”).

The Company has a broad customer base in a variety of markets, including trucking, airports, taxis, refuse, and public transit. The Company, builds, operates, maintains or supplies approximately 313 natural gas fueling locations in twenty-nine states within the United States, and in British Columbia and Ontario within Canada. The Company also generates revenue through operation and maintenance (“O&M”) agreements with certain customers, through building and selling or leasing natural gas fueling stations to its customers, and through manufacturing and servicing natural gas fueling compressors and related equipment, providing natural gas vehicle conversions, processing and selling renewable natural gas (“RNG”), and through financing its customers’ vehicle purchases.

Basis of Presentation: The accompanying interim unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries, and, in the opinion of management, reflect all adjustments, which include only normal recurring adjustments, necessary to state fairly the Company’s financial position, results of operations and cash flows for the three and six month periods ended June 30, 2011 and 2012. All intercompany accounts and transactions have been eliminated in consolidation. The three and six month periods ended June 30, 2011 and 2012 are not necessarily indicative of the results to be expected for the year ending December 31, 2012 or for any other interim period or for any future year.

Certain information and disclosures normally included in the notes to the financial statements have been condensed or omitted pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”), but the resultant disclosures contained herein are in accordance with accounting principles generally accepted in the United States of America (“US GAAP”) as they apply to interim reporting. The condensed consolidated financial statements should be read in conjunction with the consolidated financial statements as of and for the year ended December 31, 2011 that are included in the Company’s Annual Report on Form 10-K filed with the SEC on March 12, 2012.

Use of Estimates: The preparation of consolidated financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and revenues and expenses recorded during the reporting period. Actual results could differ from those estimates. Current economic conditions may require the use of additional estimates and these estimates may be subject to a greater degree of uncertainty as a result of the uncertain economy.

- Definition

The entire disclosure for the organization, consolidation and basis of presentation of financial statements disclosure, and significant accounting policies of the reporting entity. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

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Acquisitions

6 Months Ended

Jun. 30, 2012

Acquisitions

Acquisitions

Note 2—Acquisitions

ServoTech

On February 25, 2011 (the “Closing Date”), the Company paid $1,200 for a 19.9% interest in ServoTech Engineering, Inc. (“ServoTech”), a company that provides, among other services, design and engineering services for natural gas fueling systems. In connection with the investment, the Company was granted an option to purchase the remaining 80.1% of ServoTech for $2,800 during the 15 month period following the Closing Date (the “Purchase Option”). On April 30, 2012, the Company exercised the Purchase Option, paid $1,400 in cash on that date, and agreed to pay an additional $1,400 in cash on October 31, 2012. Through March 31, 2012, the Company accounted for its interest in ServoTech using the equity method of accounting as the Company had the ability to exercise significant influence over ServoTech’s operations.

The Company accounted for this acquisition in accordance with the authoritative guidance for business combinations in stages. The Company re-measured its previously held equity interest in ServoTech at fair value as of April 30, 2012 (its acquisition date) resulting in no gain or loss, and recognized the assets acquired and the liabilities assumed, measured at their fair values, as of the date of acquisition. The following table summarizes the estimated fair values of the assets acquired and liabilities assumed as of the acquisition date:

Current assets	$	2,655
Property & equipment	239
Identifiable intangible assets	3,913
Total assets acquired	6,807
Current liabilities assumed	(2,807		)
Total purchase price	$	4,000

The Company identified intangible assets with estimated fair value of $3,913 related to certain customer contracts and technology. The fair value of the identified intangible assets will be amortized on a straight-line basis over their estimated useful lives, ranging from two to seven years.

The results of ServoTech’s operations have been included in the Company’s consolidated financial statements since April 30, 2012. The historical results of ServoTech’s operations were not material to the Company’s financial position or historical results of operations.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

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+ Details

Cash and Cash Equivalents

6 Months Ended

Jun. 30, 2012

Cash and Cash Equivalents

Cash and Cash Equivalents

Note 3—Cash and Cash Equivalents

The Company considers all highly liquid investments with maturities of three months or less on the date of acquisition to be cash equivalents.

- Definition

The entire disclosure for cash and cash equivalent footnotes, which may include the types of deposits and money market instruments, applicable carrying amounts, restricted amounts and compensating balance arrangements. Cash and equivalents include: (1) currency on hand (2) demand deposits with banks or financial institutions (3) other kinds of accounts that have the general characteristics of demand deposits (4) short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Generally, only investments maturing within three months from the date of acquisition qualify.

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-Paragraph 1
-Article 5

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 8, 9, 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Restricted Cash

6 Months Ended

Jun. 30, 2012

Restricted Cash

Restricted Cash

Note 4— Restricted Cash

The Company classifies restricted cash as a current asset if the cash is expected to be used in operations within a year or to acquire a current asset. Otherwise, the restricted cash is classified as long-term. Restricted cash consisted of the following as of June 30, 2012:

	December 31, 2011		June 30, 2012
Short-term restricted cash
Standby letters of credit	$	1,237	$	1,217
DCEMB bonds — current operating costs	3,555		5,850
Total short-term restricted cash	4,792		7,067
Chesapeake loan	40,322		16,722
DCEMB bonds — long-term plant expansion	14,482		4,626
Total restricted cash	$	59,596	$	28,415

Investments

6 Months Ended

Jun. 30, 2012

Investments

Investments

Note 5— Investments

Available-for-sale investments are carried at fair value, inclusive of unrealized gains and losses. Net unrealized gains and losses are included in other comprehensive income (loss) net of applicable income taxes. Gains or losses on sales of available-for-sale investments are recognized on the specific identification basis.

The Company reviews available-for-sale investments for other-than-temporary declines in fair value below their cost basis each quarter, and whenever events or changes in circumstances indicate that the cost basis of an asset may not be recoverable. This evaluation is based on a number of factors, including the length of time and the extent to which the fair value has been below its cost basis and adverse conditions related specifically to the security, including any changes to the credit rating of the security. As of June 30, 2012 the Company believes its cost bases for its available-for-sale investments are properly recorded.

Available-for-sale securities as of December 31, 2011 are summarized as follows:

	Amortized Cost		Gross Unrealized Losses			Estimated Fair Value
Municipal bonds & notes	$	19,703	$	(114	)	$	19,589
Zero coupon bonds	712		—			712
Corporate bonds	3,040		(12		)	3,028
Total available-for-sale securities	23,455		(126		)	23,329
Certificate of deposits	10,000		—			10,000
Total short-term investments	$	33,455	$	(126	)	$	33,329

Available-for-sale securities as of June 30, 2012 are summarized as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Municipal bonds & notes	$	23,032	$	—	$	(305	)	$	22,727
Zero coupon bonds	810		3		—			813
Corporate bonds	3,558		—		(40		)	3,518
Total available-for-sale securities	27,400		3		(345		)	27,058
Certificate of deposits	10,021		—		—			10,021
Total short-term investments	$	37,421	$	3	$	(345	)	$	37,079

The Company had no available-for-sale securities as of June 30, 2011.

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-Glossary Debt Security
-URI http://asc.fasb.org/extlink&oid=6509901

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-URI http://asc.fasb.org/extlink&oid=6511694

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 3, 19, 20, 21, 22, 137
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Derivative Transactions

6 Months Ended

Jun. 30, 2012

Derivative Transactions

Derivative Transactions

Note 6—Derivative Transactions

As of June 30, 2012, all of the Company’s future contracts qualified for hedge accounting. The Company marks to market its open futures positions at the end of each period and records the net unrealized gain or loss during the period in derivative (gains) losses in the condensed consolidated statements of operations or in accumulated other comprehensive income in the condensed consolidated balance sheets in accordance with the Financial Accounting Standards Board’s (“FASB”) authoritative guidance. For the three month periods ended June 30, 2011 and 2012, the Company recorded unrealized gains of $505 and $1,251, respectively, in other comprehensive income (loss) related to its futures contracts. The Company recorded unrealized gains of $1,213 and $1,966 in other comprehensive income (loss) for the six month periods ended June 30, 2011 and 2012, respectively, related to its futures contracts. The liability of the Company’s future contracts at June 30, 2012 was $293, which is included in accrued liabilities in the Company’s consolidated balance sheet. Of the $2,858 liability for the Company’s futures contracts at June 30, 2011, $2,715 is included in accrued liabilities for the short-term amount, and $143 is included in other long-term liabilities for the long-term amount in the Company’s condensed consolidated balance sheet. The Company’s ineffectiveness related to its futures contracts during the three and six month periods ended June 30, 2011 and 2012 was insignificant. For the three months ended June 30, 2011 and 2012, the Company recognized a loss of approximately $680 and $1,196, respectively, in cost of sales in the accompanying condensed consolidated statements of operations related to its futures contracts that were settled during the respective periods. For the six months ended June 30, 2011 and 2012, the Company recognized a loss of $1,431 and $2,303, respectively, in cost of sales in the accompanying condensed consolidated statements of operations related to its futures contracts that were settled during the respective periods.

The following table presents the notional amounts and weighted-average fixed prices per gasoline gallon equivalent of the Company’s natural gas futures contracts as of June 30, 2012:

	Gallons	Weighted Average Price Per Gasoline Gallon Equivalent
July to December, 2012	440,000	$	0.79
January to May, 2013	300,000	$	0.81

- Definition

The entire disclosure for the entity's entire derivative instruments and hedging activities. Describes an entity's risk management strategies, derivatives in hedging activities and non-hedging derivative instruments, the assets, obligations, liabilities, revenues and expenses arising therefrom, and the amounts of and methodologies and assumptions used in determining the amounts of such items.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 45
-Paragraph 1
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
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Reference 15: http://www.xbrl.org/2003/role/presentationRef
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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Reference 20: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
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-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 21: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 22: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Other Receivables

6 Months Ended

Jun. 30, 2012

Other Receivables

Other Receivables

Note 7—Other Receivables

Other receivables at December 31, 2011 and June 30, 2012 consisted of the following:

	December 31, 2011		June 30, 2012
Loans to customers to finance vehicle purchases	$	1,789	$	2,223
Capital lease receivables	310		301
Accrued customer billings	5,860		8,701
Fuel tax and carbon credits	5,912		4,038
Other	5,730		5,713
	$	19,601	$	20,976

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=7512638&loc=d3e5066-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 01-6
-Paragraph 13
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 3, 4
-Article 5

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph k
-Article 4

+ Details

Inventories

6 Months Ended

Jun. 30, 2012

Inventories

Inventories

Note 8—Inventories

Inventories are stated at the lower of cost or market on a first-in, first-out basis. Management’s estimate of market includes a provision for slow-moving or obsolete inventory based upon inventory on hand and forecasted demand.

Inventories consisted of the following as of December 31, 2011 and June 30, 2012:

	December 31, 2011		June 30, 2012
Raw materials and spare parts	$	30,177	$	30,790
Work in process	2,310		4,170
Finished goods	2,800		1,510
Total	$	35,287	$	36,470

Land, Property and Equipment

6 Months Ended

Jun. 30, 2012

Land, Property and Equipment

Land, Property and Equipment

Note 9—Land, Property and Equipment

Land, property and equipment at December 31, 2011 and June 30, 2012 are summarized as follows:

	December 31, 2011			June 30, 2012
Land	$	1,198		$	1,198
LNG liquefaction plants	93,109			93,317
RNG plants	21,005			22,356
Station equipment	118,613			135,866
LNG trailers	13,532			13,564
Other equipment	26,508			37,383
Construction in progress	86,127			146,211
	360,092			449,895
Less: accumulated depreciation	(82,758		)	(94,878		)
	$	277,334		$	355,017

- Definition

The entire disclosure for long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software. This disclosure may include property plant and equipment accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives, income statement disclosures, assets held for sale and public utility disclosures.

+ References + Details

Investments in Other Entities

6 Months Ended

Jun. 30, 2012

Investments in Other Entities

Investments in Other Entities

Note 10—Investments in Other Entities

The Company has invested in The Vehicle Production Group LLC (“VPG”), a company that is developing a natural gas vehicle made in the United States for taxi and paratransit use. The Company accounts for its investment in VPG under the cost method of accounting as the Company does not have the ability to exercise significant influence over VPG’s operations. During the six months ended June 30, 2012, the Company invested an additional $1,024 in VPG. At June 30, 2012, this investment had a balance of $14,544.

The Company has invested in Clean Energy del Peru (“Peru JV”), a joint venture in Lima, Peru that operates CNG stations. The Company accounts for its investment in Peru JV under the equity method of accounting as the Company has the ability to exercise significant influence over Peru JV’s operations. At June 30, 2012, this investment had a balance of $2,410.

Accrued Liabilities

6 Months Ended

Jun. 30, 2012

Accrued Liabilities

Accrued Liabilities

Note 11— Accrued Liabilities

Accrued liabilities at December 31, 2011 and June 30, 2012 consisted of the following:

	December 31, 2011		June 30, 2012
Salaries and wages	$	5,088	$	6,059
Accrued gas and equipment purchases	4,773		7,225
Derivative liabilities	2,259		610
Contingent consideration obligations	378		864
Accrued property and other taxes	3,043		1,639
Accrued professional fees	875		914
Accrued employee benefits	1,431		3,328
Accrued warranty liability	3,130		3,020
Other	7,278		5,492
	$	28,255	$	29,151

Warranty Liability

6 Months Ended

Jun. 30, 2012

Warranty Liability

Warranty Liability

Note 12—Warranty Liability

The Company records warranty liabilities at the time of sale for the estimated costs that may be incurred under its standard warranty. Changes in the warranty liability are presented in the following tables:

	June 30, 2011			June 30, 2012
Warranty liability at beginning of year	$	2,338		$	3,130
Costs accrued for new warranty contracts and changes in estimates for pre-existing warranties	723			2,028
Service obligations honored	(332		)	(2,138		)
Warranty liability at end of period	$	2,729		$	3,020

Long-term Debt

6 Months Ended

Jun. 30, 2012

Long-term Debt

Long-term Debt

Note 13—Long-term Debt

In conjunction with the Company’s acquisition of its 70% interest in Dallas Clean Energy, LLC (“DCE”), on August 15, 2008, the Company entered into a credit agreement (“Credit Agreement”) with Plains Capital Bank (“PCB”). The Company borrowed $18,000 (the “Facility A Loan”) to finance the acquisition of its membership interests in DCE. The Company also obtained a $12,000 line of credit from PCB to finance capital improvements of the DCE processing facility and to pay certain costs and expenses related to the acquisition and the PCB loans (the “Facility B Loan”).

On October 7, 2009, the Facility A Loan was repaid in full and converted into a $20,000 line of credit (the “A Line of Credit”) pursuant to an amendment to the Credit Agreement. On August 13, 2010, the Credit Agreement was amended to extend the maturity date of the A Line of Credit to August 14, 2011 and add an unused facility fee. The amendment also provided for a 1-year option to extend the maturity date to August 14, 2012, subject to the Company not being in default on the A Line of Credit. The unused facility fees are to be paid quarterly, in an amount equal to one-tenth of one percent (0.10%) of the unused portion. The Company elected not to renew the A Line of Credit on August 14, 2011 and the Line of Credit expired on that date. The principal amount of the Facility B Loan became due and payable in annual payments commencing on August 1, 2009, and continuing each anniversary date thereafter, with each such payment being in an amount equal to the lesser of twenty percent of the aggregate principal amount of the Facility B Loan then outstanding or $2,800. Pursuant to an amendment to the Facility B loan between the Company and PCB dated November 1, 2010, PCB agreed to forgo the scheduled payment due from the Company on August 2010 in the amount of $2,059 until January 31, 2011, which payment was made on such date. On March 31, 2011, the Company paid in full the remaining principal and interest that was due under the Facility B Loan.

In conjunction with the DCE acquisition mentioned above, the Company also entered into a Loan Agreement with DCE (the “DCE Loan”) to provide secured financing of up to $14,000 to DCE for future capital expenditures or other uses as agreed to by the Company, in its sole discretion. On March 31, 2011, the entire amount of unpaid principal and interest due under the DCE Loan was paid to the Company. The interest income related to the DCE Loan has been eliminated in the accompanying consolidated statements of operations.

Revenue Bonds

On March 25, 2011, the Company’s 70% owned subsidiary, Dallas Clean Energy McCommas Bluff, LLC, a Delaware limited liability company (“DCEMB”), arranged for a $40,200 tax-exempt bond issuance (the “Revenue Bonds”). The Revenue Bonds will be repaid from the revenue generated by DCEMB from the sale of RNG. The Revenue Bonds are secured by the revenue and assets of DCEMB and are non-recourse to DCEMB’s direct and indirect parent companies, including the Company. The bond repayments are amortized through December 2024 and the average coupon interest rate on the bonds is 6.60%. The bond issuance closed March 31, 2011.

The bond proceeds will primarily be used to finance further improvements and expansion of the landfill gas processing facility owned by DCEMB at the McCommas Bluff landfill outside of Dallas, Texas. A portion of the proceeds were used to retire the DCE Loan discussed above. The Company, in turn, used the proceeds from the payoff of the DCE Loan to repay approximately $8,000 owed by the Company to PCB under the Facility B Loan on March 31, 2011.

Pursuant to the Loan Agreement, dated as of January 1, 2011 (the “Loan Agreement”), between DCEMB and the Mission Economic Development Corporation (the “Issuer”), DCEMB has covenanted with the Issuer to make loan repayments equal to the principal and interest coming due on the Revenue Bonds. DCEMB executed a promissory note, dated March 31, 2011 (the “Note”), as evidence of its obligations under the Loan Agreement. Pursuant to the Trust Indenture, dated as of January 1, 2011 (the “Indenture”), the Issuer has pledged and assigned to the Trustee (as defined below) all of the Issuer’s right, title and interest in and to the Loan Agreement (with certain specified exceptions) and the Note.

The obligations of DCEMB under the Loan Agreement are secured by a Leasehold Deed of Trust, Assignment of Rents, Security Agreement and Fixture Filing, dated as of January 1, 2011 (the “Deed of Trust”), executed by DCEMB in favor of the deed of trust trustee named therein for the benefit of the Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee”). In addition, DCEMB executed a Security Agreement (the “Security Agreement”), as security for its obligations, pursuant to which DCEMB granted to the Trustee a security interest in all right, title and interest of DCEMB to the Collateral (as defined in the Security Agreement), which includes, but is not limited to, DCEMB’s rights, title and interest in any gas sale agreements, including the gas sale agreement (the “Shell Gas Sale Agreement”) with Shell Energy North America (US), L.P. (“Shell Energy”), and the funds and accounts held under the Indenture.

Pursuant to a Consent and Agreement, by and between Shell Energy, The Bank of New York Mellon Trust Company, N.A., as Depository Bank (the “Depository Bank”), DCEMB and the Trustee, dated as of January 1, 2011 (the “Consent Agreement”), Shell Energy agreed to make all payments due to DCEMB under the Shell Gas Sale Agreement to the Depository Bank. In addition, other revenues generated through the sale of gas produced at the facility will be paid directly to the Depository Bank pursuant to a Depository and Control Agreement, dated as of January 1, 2011 (the “Depository Agreement”), among DCEMB, the Trustee and the Depository Bank.

All payments received by the Depository Bank will be placed into various accounts in accordance with the requirements of the Indenture and the Depository Agreement. The funds in these accounts will be used to service required debt payments, finance further improvements and expansion of the landfill gas processing facility owned by DCEMB, finance the operations and maintenance of DCEMB, finance certain expenses associated with setting up and maintaining the accounts, and other uses as prescribed in the Depository Agreement. The Depository Bank will make payments out of these accounts in accordance with the requirements of the Depository Agreement. At the end of each month after all required account fundings have been fulfilled in accordance with the Depository Agreement, all remaining excess funds will be placed into a surplus account. The funds in the surplus account will be delivered to DCEMB so long as (i) DCEMB’s Debt Service Coverage Ratio (as defined) for the most recent four calendar quarters then ended equals or exceeds 1.25:1, (ii) DCEMB’s Debt Service Coverage Ratio (as defined) is reasonably projected to equal or exceed 1.25:1 for the next four calendar quarters, (iii) no events of default have occurred as defined by the Indenture and the Loan Agreement, and (iv) after giving effect to the transfer, DCEMB’s Minimum Days Cash on Hand (as defined) shall be, or shall at any time be projected to be, more than the lesser of thirty-five Days Cash on Hand (as defined) or $1,300. Due to these restrictions on this cash, the Company has classified all of this cash as restricted cash on the balance sheet. The Company records the restricted cash that is expected to be received and used within the next 12 months from the Depository Bank for working capital and operating purposes as current in its balance sheet, and presents the remaining balance as non-current in the line item notes receivable and other long term assets. At June 30, 2012, $4,626 was recorded as long term restricted cash and $5,850 was recorded as short term restricted cash in the accompanying condensed consolidated balance sheet.

Pursuant to a Collateral Assignment and Consent Agreement with Atmos Pipeline—Texas (“Atmos”), DCEMB has collaterally assigned to the Trustee, subject to certain reserved rights and the consent of Atmos, the transportation agreements of the Company with Atmos.

The Indenture and the Loan Agreement have certain non-financial debt covenants with which DCEMB must comply. As of June 30, 2012, DCEMB was in compliance with all its debt covenants.

Purchase Notes

In connection with the closing of the Company’s acquisition of IMW in September 2010, the Company agreed to make future payments consisting of four annual payments in the amount of $12,500 (collectively the “IMW Notes”). Each payment under the IMW Notes will consist of $5,000 in cash and $7,500 in cash and/or shares of the Company’s common stock (the exact combination of cash and/or stock to be determined at the Company’s option). In addition, pursuant to a security agreement executed at closing, the IMW Notes are secured by a subordinate security interest in IMW.

In connection with the closing of the Company’s acquisition of Northstar in December 2010, the Company agreed to make five annual payments in the amount of $700 each with the first payment due December 15, 2011. The first payment of $700 was paid on December 15, 2011.

In connection with the closing of the Company’s acquisition of Weaver Electric, Inc. on October 3, 2011, the Company paid $1,000 in cash and agreed to make four additional annual payments in the amount of $250 each with the first payment due October 3, 2012. In May 2012, the Company prepaid $125 of the amount due on October 3, 2012.

The difference between the carrying amount and the face amount of these obligations is being accreted to interest expense over the remaining term of the obligations.

IMW Lines of Credit

Also in connection with the closing of the Company’s acquisition of IMW, the Company entered into an Assumption Agreement (the “Assumption Agreement”) with HSBC Bank Canada (“HSBC”) pursuant to which the Company assumed the obligations and liabilities of IMW under the following arrangements with HSBC (collectively, the “IMW Lines of Credit”):

(i) An operating line of credit with a limit of $10,000 in Canadian dollars (“CAD”) to assist in financing the day-to-day working capital needs of IMW. The interest on amounts outstanding shall be payable at IMW’s option at (a) HSBC’s Prime Rate plus 1.00% per annum, (b) HSBC’s U.S. Base Rate plus 1.00% per annum, or LIBOR plus 2.25% per annum, subject to availability.

(ii) A demand revolving line of credit with a limit of CAD$2,000 bearing interest at the same rate as that of the operating line of credit discussed above, to assist in financing IMW’s import requirements.

(iii) A demand revolving bank guarantee and standby letter of credit line with a limit of CAD$1,115.

(iv) A bank guarantee line with a limit of CAD$3,000, which allows IMW to provide guarantees and/or standby letters of credit to overseas suppliers or bid/performance deposits on contracts.

(v) A forward exchange contract line with a limit of CAD$13,750 that allows IMW to enter into foreign exchange forward contracts up to the notional limit of CAD$13,750 (no forward exchange contracts were outstanding at June 30, 2012).

(vi) A MasterCard with a limit of CAD$150.

(vii) An operating line of credit with a limit of 5,000 Renminbi (“RMB”) (CAD$811) bearing interest at the 6 month People’s Bank of China rate plus 2.5% and a sub-limit bank guarantee line of 5,000 RMB. The aggregate of the balances in the lines cannot exceed 5,000 RMB.

(viii) A 16,750 Bengali Taka (CAD$206) operating line of credit bearing interest at 14%.

(ix) A 170,000 Columbian Peso (CAD$97) operating line of credit bearing interest at the Colombia benchmark rate plus 7 to 12%.

The IMW Lines of Credit are secured by a general security agreement providing a first priority security interest in all present and after acquired personal property of IMW, including specific charges on all serial numbered goods, inventory and other assets and assignment of risk insurance (the “Security”). The IMW Lines of Credit contain no fixed repayment terms or mandatory principal payments and are due on demand. Based on the relevant accounting guidance, the Company has classified this debt pursuant to the credit agreement as short-term given that it is due on demand.

The Assumption Agreement with HSBC sets forth certain financial covenants with which IMW must comply, including: 1) its ratio of debt to tangible net worth must be no greater than 3.75 to 1.0 from January 1, 2012 through March 31, 2012, and no greater than 3.5 to 1.0 from April 1, 2012 through June 30, 2012, and no greater than 3.0 to 1.0 on or after July 1, 2012, 2) it must maintain a tangible net worth of at least CAD$7,000 and 3) its ratio of current assets to current liabilities may not be less than 1.15 to 1.0 until March 31, 2012 or less than 1.25 to 1.0 on or after April 1, 2012. IMW was in compliance with the financial covenants as of June 30, 2012.

In addition, the Company and IMW agreed that should the making of any scheduled payment by IMW to the seller of IMW under the IMW Notes result in IMW being in breach of the Assumption Agreement, the IMW Lines of Credit or the Security, the Company shall furnish IMW with the funds needed to make such payment and remain in compliance with the Assumption Agreement, the IMW Lines of Credit and the Security. Further, the Company and IMW agreed that should IMW make any future earn-out payments to the seller of IMW in connection with the acquisition of IMW, and should the making of such earn-out payments result in IMW being in breach of the Assumption Agreement, the IMW Lines of Credit or the Security, then the Company shall furnish IMW with the funds needed to make such earn-out payments and remain in compliance with the Assumption Agreement, the IMW Lines of Credit and the Security.

Chesapeake Notes

On July 11, 2011, the Company entered into a Loan Agreement (the “CHK Agreement”) with Chesapeake NG Ventures Corporation (“Chesapeake”), an indirect wholly owned subsidiary of Chesapeake Energy Corporation, whereby Chesapeake agreed to purchase from the Company up to $150 million of debt securities for the development, construction and operation of liquefied natural gas stations (the “CHK Financing”) pursuant to the issuance of three convertible promissory notes, each having a principal amount of $50 million (each a “CHK Note” and collectively the “CHK Notes”). Chesapeake Energy Corporation guaranteed Chesapeake’s commitment to purchase the CHK Notes under the CHK Agreement.

The first CHK Note was issued on July 11, 2011, the second CHK Note was issued on July 10, 2012, and the Company expects to issue the third Note on or about June 28, 2013. The CHK Notes bear interest at the rate of 7.5% per annum (payable quarterly, in arrears, on March 31, June 30, September 30 and December 31 of each year) and are convertible at Chesapeake’s option into shares of the Company’s common stock at a conversion price of $15.80 per share (the “CHK Conversion Price”). Subject to certain restrictions, the Company can force conversion of each CHK Note into shares of the Company’s common stock if, following the second anniversary of the issuance of a CHK Note, the Company’s shares of common stock trade at a 40% premium to the CHK Conversion Price for at least 20 trading days in any consecutive 30 trading day period. The entire principal balance of each CHK Note is due and payable seven years following its issuance, and the Company may repay each CHK Note in shares of the Company’s common stock or cash. The CHK Agreement restricts the use of the CHK Financing proceeds to financing the development, construction and operation of liquefied natural gas stations and payment of certain related expenses. At June 30, 2012, approximately $16,722 of these funds were included in long term restricted cash as the Company anticipates primarily using the funds to build liquefied natural gas fueling stations. The CHK Agreement also provides for customary events of default which, if any of them occurs, would permit or require the principal of, and accrued interest on, the CHK Notes to become, or to be declared, due and payable.

In connection with the CHK Financing, the Company also entered into a Registration Rights Agreement, dated July 11, 2011, with Chesapeake (the “CHK Registration Rights Agreement”) pursuant to which the Company agreed, subject to the terms and conditions of the CHK Registration Rights Agreement, to (i) file with the Securities and Exchange Commission one or more registration statements relating to the resale of the Company’s common stock issuable upon conversion of the CHK Notes, and (ii) at the request of Chesapeake, to participate in one or more underwritten offerings of the Company’s common stock issuable upon conversion of the CHK Notes. If the Company does not meet certain of its obligations under the CHK Registration Rights Agreement with respect to the registration of the Company’s common stock, it will be required to pay monthly liquidated damages of 0.75% of the principal amount of the CHK Note represented by the Company’s common stock included (or to be included, as the case may be) in the applicable registration statement until the related obligation is met. As of June 30, 2012, the Company met its obligations under the CHK Registration Rights Agreement.

SLG Notes

On August 24, 2011, the Company entered into Convertible Note Purchase Agreements (each, an “SLG Agreement” and collectively the “SLG Agreements”) with each of Springleaf Investments Pte. Ltd., a wholly-owned subsidiary of Temasek Holdings Pte. Ltd., Lionfish Investments Pte. Ltd., an investment vehicle managed by Seatown Holdings International Pte. Ltd., and Greenwich Asset Holding Ltd., a wholly-owned subsidiary of RRJ Capital Master Fund I, L.P. (each, a “Purchaser” and collectively, the “Purchasers”), whereby the Purchasers agreed to purchase from the Company $150 million of 7.5% convertible notes due in August 2016 (each a “SLG Note” and collectively the “SLG Notes”). The transaction closed and the SLG Notes were issued on August 30, 2011.

The SLG Notes bear interest at the rate of 7.5% per annum (payable quarterly, in arrears, on March 31, June 30, September 30 and December 31 of each year) and are convertible at each Purchaser’s option into shares of the Company’s common stock at a conversion price of $15.00 per share (the “SLG Conversion Price”). Subject to certain restrictions, the Company can force conversion of each SLG Note into shares of the Company’s common stock if, following the second anniversary of the issuance of the SLG Notes, the Company’s shares of common stock trade at a 40% premium to the SLG Conversion Price for at least 20 trading days in any consecutive 30 trading day period. The entire principal balance of each SLG Note is due and payable five years following its issuance, and the Company may repay the principal balance of each SLG Note in shares of the Company’s common stock or cash. The SLG Agreements also provide for customary events of default which, if any of them occurs, would permit or require the principal of, and accrued interest on, the SLG Notes to become, or to be declared, due and payable. In April 2012, $1,003 of principal and accrued interest under a SLG Note was converted by the holder thereof into 66,888 shares of the Company’s common stock.

In connection with the SLG Agreements, the Company also entered into a Registration Rights Agreement, dated August 24, 2011, with each of the Purchasers (the “SLG Registration Rights Agreements”) pursuant to which the Company agreed, subject to the terms and conditions of the SLG Registration Rights Agreements, to (i) file with the Securities and Exchange Commission one or more registration statements relating to the resale of the Company’s common stock issuable upon conversion of the SLG Notes, and (ii) at the request of the Purchasers, participate in one or more underwritten offerings of the Company’s common stock issuable upon conversion of the SLG Notes. If the Company does not meet certain of its obligations under the SLG Registration Rights Agreements with respect to the registration of the Company’s common stock, it will be required to pay monthly liquidated damages of 0.75% of the principal amount of the SLG Note represented by the Company’s common stock included (or to be included, as the case may be) in the applicable registration statement until the related obligation is met, not to exceed 4% of the aggregate principal amount of the SLG Notes per annum. As of June 30, 2012, the Company met its obligations under the SLG Registration Rights Agreement.

Long-term debt at December 31, 2011 and June 30, 2012 consisted of the following:

	December 31, 2011			June 30, 2012
IMW Notes	$	34,400		$	30,391
Northstar future payments	2,388			2,468
ServoTech future payment	—			1,400
DCE Notes	585			585
DCEMB Revenue Bonds (non recourse to the Company)	39,400			39,400
Chesapeake Notes	50,000			50,000
SLG Notes	150,000			149,000
Weaver Electric future payments	872			782
IMW assumed debt	6,657			9,449
Capital lease obligations	5,120			4,139
Total debt and capital lease obligations	289,422			287,614
Less amounts due within one year and short-term borrowings	(22,925		)	(33,784		)
Total long-term debt and capital lease obligations	$	266,497		$	253,830

Earnings Per Share

6 Months Ended

Jun. 30, 2012

Earnings Per Share

Earnings Per Share

Note 14—Earnings Per Share

Basic earnings per share is based upon the weighted-average number of shares outstanding during each period. Diluted earnings per share reflects the impact of assumed exercise of dilutive stock options and warrants. The information required to compute basic and diluted earnings per share is as follows:

	Three Months Ended June 30,		Six Months Ended June 30,
	2011	2012	2011	2012
Basic and diluted:
Weighted average number of common shares outstanding	70,302,782	86,625,655	70,199,963	86,155,678

Certain securities were excluded from the diluted earnings per share calculations for the six-months ended June 30, 2011 and 2012, respectively, as the inclusion of the securities would be anti-dilutive to the calculation. The amounts outstanding as of June 30, 2011 and 2012 for these instruments are as follows:

	June 30,
	2011	2012
Options	10,802,155	10,564,834
Warrants	17,130,682	2,130,682
Convertible notes	—	13,097,669
Restricted stock units	—	1,545,000

Stock-Based Compensation

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation

Stock-Based Compensation

Note 15—Stock-Based Compensation

The following table summarizes the compensation expense and related income tax benefit related to the stock-based compensation expense recognized during the periods:

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2012		2011		2012

Stock-based compensation expense	$	3,555	$	5,768	$	6,932	$	10,448
Stock-based compensation expense, net of tax	$	3,555	$	5,768	$	6,932	$	10,448

Stock Options

The following table summarizes the Company’s stock option activity during the six months ended June 30, 2012:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding, December 31, 2011	10,683,303		$	10.29
Options granted	1,274,000		15.07
Options exercised	(1,290,163	)	6.07
Options forfeited	(102,306	)	13.99
Outstanding, June 30, 2012	10,564,834		$	11.34	6.45	$	43,950
Exercisable, June 30, 2012	7,451,848		$	10.05	5.48	$	40,613

As of June 30, 2012, there was $20,636 of total unrecognized compensation cost related to non-vested shares. That cost is expected to be recognized over a weighted average period of 1.3 years. The total fair value of shares vested during the six months ended June 30, 2012 was $3,670.

The Company plans to issue new shares to its employees upon the employee’s exercise of their options. The intrinsic value of all options exercised during the six months ended June 30, 2011 and 2012 was $657 and $11,459, respectively.

The fair value of each option is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted-average assumptions used for grants in 2012:

		Six Months Ended June 30, 2012
Dividend yield		0.00%
Expected volatility		66.2% to 72.8%
Risk-free interest rate		00.9% to 01.2%
Expected life in years		6.0

The weighted-average grant date fair values of options granted during the six months ended June 30, 2011 and 2012 were $9.07, and $9.09, respectively. The volatility amounts used during the period were estimated based on a certain peer group of the Company’s historical volatility for a period commensurate with the expected life of the options granted, the Company’s historical volatility, and the Company’s implied volatility of its traded options. The expected lives used during the periods were based on historical exercise periods and the Company’s anticipated exercise periods for its outstanding options. The risk free rates used during the year were based on the U.S. Treasury yield curve for the expected life of the options at the time of grant. The Company recorded $6,932 and $6,970 of stock option expense during the six months ended June 30, 2011 and 2012, respectively. The Company has not recorded any tax benefit related to its stock option expense.

Restricted Stock Units

The Company issued restricted stock units (“RSUs”) to certain key employees during the six months ended June 30, 2012. A holder of RSUs will receive one share of the Company’s common stock for each RSU he holds if (x) between two years and four years from the date of grant the closing price of the Company’s common stock equals or exceeds, for twenty consecutive trading days, 135% of the closing price of the Company’s common stock on the RSU grant date (the “Stock Price Condition”) and (y) the holder is employed by the Company at the time the Stock Price Condition is satisfied. If the Stock Price Condition is not satisfied prior to four years from the date of grant, the RSUs will be automatically forfeited. The RSUs are subject to the terms and conditions of the Company’s Amended and Restated 2006 Equity Incentive Plan and a Notice of Grant of Restricted Stock Unit and Restricted Stock Unit Agreement.

The fair value of the RSUs was estimated using a binomial lattice model that incorporates a Monte Carlo Simulation (the “Monte Carlo Method”).

The following table summarizes the Company’s RSU activity during the six months ended June 30, 2012:

	Number of Shares	Weighted Average Fair Value at Grant Date		Weighted Average Remaining Contractual Term (in years)
Outstanding, December 31, 2011	—	—
Granted	1,545,000	$	11.42
Outstanding and non-vested, June 30, 2012	1,545,000	$	11.42	3.7

As of June 30, 2012, there was $14,164 of total unrecognized compensation cost related to non-vested units. That cost is expected to be recognized over a weighted average period of 1.7 years.

The fair value of each RSU was estimated on the date of grant using the Monte Carlo Method with the following assumptions:

	January 25, 2012			May 8, 2012
Stock price on date of grant	$	15.11		$	16.71
Dividend yield	0.00		%	0.00		%
Expected volatility	56.51		%	58.49		%
Risk-free interest rate	0.57		%	0.56		%
Expected life in years	2.1			2.0

The volatility amounts used during the period were estimated based on the Company’s historical volatility for a period commensurate with the term of the RSUs granted and the Company’s implied volatility of its traded options. The expected life of the RSUs was derived using the Monte Carlo Method. The risk free rates used during the year were based on the U.S. Treasury yield curve for the expected term of the RSUs at the date of grant. The Company recorded $3,478 of expense and has not recorded any tax benefit related to the expense of the RSUs during the six months ended June 30, 2012.

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 50
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6406099&loc=d3e25284-112666

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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Environmental Matters, Litigation, Claims, Commitments and Contingencies

6 Months Ended

Jun. 30, 2012

Environmental Matters, Litigation, Claims, Commitments and Contingencies

Environmental Matters, Litigation, Claims, Commitments and Contingencies

Note 16—Environmental Matters, Litigation, Claims, Commitments and Contingencies

The Company is subject to federal, state, local, and foreign environmental laws and regulations. The Company does not anticipate any expenditures to comply with such laws and regulations which would have a material impact on the Company’s consolidated financial position, results of operations, or liquidity. The Company believes that its operations comply, in all material respects, with applicable federal, state, local and foreign environmental laws and regulations.

The Company may become party to various legal actions that arise in the ordinary course of its business. During the course of its operations, the Company is also subject to audit by tax authorities for varying periods in various federal, state, local and foreign tax jurisdictions. Disputes may arise during the course of such audits as to facts and matters of law. It is impossible at this time to determine the ultimate liabilities that the Company may incur resulting from any lawsuits, claims and proceedings, audits, commitments, contingencies and related matters or the timing of these liabilities, if any. If these matters were to be ultimately resolved unfavorably, an outcome not currently anticipated, it is possible that such outcome could have a material adverse effect upon the Company’s consolidated financial position or results of operations. However, the Company believes that the ultimate resolution of such actions will not have a material adverse affect on the Company’s consolidated financial position, results of operations, or liquidity.

On July 15, 2010, the Internal Revenue Service (“IRS”) sent the Company a letter disallowing approximately $5,073 related to certain claims it made from October 1, 2006 to June 30, 2008 under the Volumetric Excise Tax Credit (“VETC”) program. The Company believes its claims were properly made and has appealed the IRS’s request for payment. As of June 30, 2012, the Company has entered into negotiations with certain parties involved in the claims, but the negotiations are ongoing and no agreements have been reached. The Company cannot reasonably estimate a range of probable losses associated with these claims beyond the maximum possible range of losses of $0 to $5,073.

Income Taxes

6 Months Ended

Jun. 30, 2012

Income Taxes

Income Taxes

Note 17—Income Taxes

The effective tax rate for the three months and six months ended June 30, 2011 and 2012 is different from the federal statutory tax rate primarily as a result of losses for which no tax benefit has been recognized. The Company is required to recognize the impact of a tax position in its financial statements if the position meets the more likely than not threshold of being sustained by the taxing authority upon examination, based on the technical merits of the position. The Company accrues interest based on the difference between a tax position recognized in the financial statements and the amount claimed on its returns at statutory interest rates. The net interest incurred was immaterial for the six months ended June 30, 2011 and 2012. Further, the Company accrues penalties if the tax position does not meet the minimum statutory threshold to avoid penalties. No penalties have been accrued by the Company. The Company’s unrecognized tax benefits as of June 30, 2012 were unchanged from December 31, 2011.

The Company is subject to taxation in the United States and various state and foreign jurisdictions. The Company’s taxes for 2007 through 2010 are subject to examination by various tax authorities. The Company is no longer subject to United States examination for years before 2008, and state examinations for years before 2007. On July 15, 2010, the IRS sent the Company a letter disallowing approximately $5,073 related to certain claims the Company made from October 1, 2006 to June 30, 2008 under the VETC program and is seeking repayment of such amount. The Company believes its claims were properly made and has appealed the IRS’s request for payment. As of June 30, 2012, the Company has entered into negotiations with certain parties involved in the claims, but the negotiations are ongoing and no agreements have been reached. The Company cannot reasonably estimate a range of probable losses associated with these claims beyond the maximum possible range of losses of $0 to $5,073.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
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-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

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+ Details

Fair Value Measurements

6 Months Ended

Jun. 30, 2012

Fair Value Measurements

Fair Value Measurements

Note 18—Fair Value Measurements

The Company follows authoritative guidance for fair value measurements with respect to assets and liabilities that are measured at fair value on a recurring basis and nonrecurring basis. Under the standard, fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The standard also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. The hierarchy consists of the following three levels: Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities; Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly; Level 3 inputs are unobservable inputs for the asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

During the six months ended June 30, 2012, the Company’s financial instruments consisted of available-for-sale securities, natural gas futures contracts, debt instruments, a contingent consideration obligation, and its Series I warrants. For securities available-for-sale, the fair value is determined by the most recent trading prices available for each security or for comparable securities, and thus represent Level 2 fair value measurements. The Company uses quoted forward price curves, discounted to reflect the time value of money, to value its natural gas futures contracts which is considered to be a Level 2 fair value measurement. The Company uses an income approach, projecting the financial results for the associated entity, discounted to reflect the time value of money, to value its contingent consideration obligation, which is considered to be a Level 3 fair value measurement. The fair market value of the Company’s debt instruments approximated their carrying values at June 30, 2011 and 2012. The Company uses the Black-Scholes model to value the Series I warrants. The Company believes the best method to approximate the market participant’s view of the volatility of its Series I warrants is to use the implied volatilities of its short-term (i.e. 3 to 9 month) traded options and extrapolate the data over the remaining term of the Series I warrants, which was approximately 3 years and 10 month as of June 30, 2012. This method has been utilized consistently in the periods presented. Given that the extrapolation beyond the term of the short term exchange traded options is not based on observable market inputs for a significant portion of the remaining term of the warrants, the Series I warrants have been classified as a Level 3 fair value determination in the table below.

The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis as of December 31, 2011 and June 30, 2012, respectively:

Description	Balance at December 31, 2011		Level 1		Level 2		Level 3
Assets:
Available-for-sale securities (1):
Certificate of deposits	$	10,000	$	—	$	10,000	$	—
Municipal bonds and notes	19,589		—		19,589		—
Zero coupon bonds	712		—		712		—
Corporate bonds	3,028		—		3,028		—
Liabilities:
Natural gas futures contracts (2)	2,335		—		2,335		—
Contingent consideration obligation (3)	5,978		—		—		5,978
Series I warrants (4)	11,493		—		—		11,493

Description	Balance at June 30, 2012		Level 1		Level 2		Level 3
Assets:
Available-for-sale securities (1):
Certificate of deposits	$	10,021	$	—	$	10,021	$	—
Municipal bonds and notes	22,727		—		22,727		—
Zero coupon bonds and notes	813		—		813		—
Corporate bonds	3,518		—		3,518		—
Liabilities:
Natural gas futures contracts (2)	293		—		293		—
Contingent consideration obligation (3)	1,334		—		—		1,334
Series I warrants (4)	16,100		—		—		16,100

(1) Included in short-term investments in the condensed consolidated balance sheets. See note 5 for further information.

(2) See note 6 for further information.

(3) The current portion is included in accrued liabilities, and the long-term portion is included in other long-term liabilities in the condensed consolidated balance sheets.

(4) Included in other long-term liabilities in the condensed consolidated balance sheets.

The following tables provide a reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis in the table above that used significant unobservable inputs (Level 3).

Liabilities: Series I Warrants	June 30, 2011			June 30, 2012
Balance beginning of year	$	14,148		$	11,493
Total (gain) loss included in earnings	(1,535		)	4,607
Ending Balance	$	12,613		$	16,100

Liabilities: Contingent Consideration	June 30, 2011			June 30, 2012
Balance beginning of year	$	11,200		$	5,978
Total gain included in earnings	(700		)	(4,294		)
Payments	(2,159		)	(350		)
Ending Balance	$	8,341		$	1,334

Valuation processes for Level 3 fair value measurements and sensitivity to changes in significant unobservable inputs

Fair value measurements of liabilities which fall within Level 3 of the fair value hierarchy are determined by the Company’s accounting department, who report to the Company’s Chief Financial Officer. The fair value measurements are compared to those of the prior reporting periods to ensure that changes are consistent with expectations of management based upon the sensitivity and nature of the inputs.

Contingent Consideration

Pursuant to the terms presented in the Asset Purchase Agreement, the IMW shareholder will earn additional consideration if IMW achieves certain minimum gross profit targets in fiscal years 2011 through 2014. Therefore, the Company estimated the fair value of the contingent consideration using a discounted cash flow model that considers the payout structure based on the following inputs as of June 30, 2012:

Unobservable Input		Range or Weighted Average
Gross profit projection		$9,060 - $32,641
Probability of reaching target gross profit		0.0% - 55.0%
Volatility of gross profit (peer group)		14.1% - 59.1% (simple average 32.9%)
Risk adjusted discount rate		39.0%

Significant changes in any of those inputs in isolation would result in a significant change in the fair value measurement. Generally, a positive change in the assumptions used for the probability of achieving a higher gross profit target threshold would result in a directionally similar change in the estimated fair value of the contingent consideration, and thus an increase in the associated liability. Conversely, an increase in the assumed discount rate would have a directionally opposite impact on the estimated fair value measurement of the contingent consideration, and would result in a decrease in the associated liability.

Series I Warrant Liability

The Company estimated the fair value of its Series I warrant liability using the Black-Scholes Model based on the following inputs as of June 30, 2012:

Unobservable Input		Range or Weighted Average
Current market price of the Company’s common stock		$15.50
Exercise price of the warrant		$12.68
Remaining term of the warrant		3.83
Implied volatility of the Company’s common stock		58.6% – 61.6%
Assumed discount rate		Simple average 0.6%

Significant changes in any of those inputs in the isolation can result in a significant change in the fair value measurement. Generally, a positive change in the market price of the Company’s common stock, and an increase in the volatility of the Company’s common stock, or an increase in the remaining term of the warrant would result in a directionally similar change in the estimated fair value of the Company’s Series I warrants and thus an increase in the associated liability. An increase in the assumed discount rate or a decrease in the positive differential between the warrant’s exercise price and the market price of the Company’s common stock would result in a decrease in the estimated fair value measurement of the Series I warrants and thus a decrease in the associated liability. The Company has not, nor plans to, declare dividends on its common stock, and thus, there is no directionally similar change in the estimated fair value of the warrants due to the dividend assumption.

Non-financial assets

No impairments of long-lived assets measured at fair value on a non-recurring basis have been incurred during the three months or six months ended June 30, 2011 and 2012, respectively. The Company’s use of these nonfinancial assets does not differ from their highest and best use, as determined from the perspective of a market participant.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258

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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 15B
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 3, 10, 14, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Recently Adopted Accounting Changes and Recently Issued Accounting Standards

6 Months Ended

Jun. 30, 2012

Recently Adopted Accounting Changes and Recently Issued Accounting Standards

Recently Adopted Accounting Changes and Recently Issued Accounting Standards

Note 19—Recently Adopted Accounting Changes and Recently Issued Accounting Standards

On January 1, 2012, the Company adopted changes issued by the FASB to conform existing guidance regarding fair value measurement and disclosure between GAAP and International Financial Reporting Standards. These changes both clarify the FASB’s intent about the application of existing fair value measurement and disclosure requirements and amend certain principles or requirements for measuring fair value or for disclosing information about fair value measurements. The clarifying changes relate to the application of the highest and best use and valuation premise concepts, measuring the fair value of an instrument classified in a reporting entity’s shareholders’ equity, and disclosure of quantitative information about unobservable inputs used for Level 3 fair value measurements. The amendments relate to measuring the fair value of financial instruments that are managed within a portfolio, application of premiums and discounts in a fair value measurement, and additional disclosures concerning the valuation processes used and sensitivity of the fair value measurement to changes in unobservable inputs for those items categorized as Level 3, a reporting entity’s use of a nonfinancial asset in a way that differs from the asset’s highest and best use, and the categorization by level in the fair value hierarchy for items required to be measured at fair value for disclosure purposes only. Other than the additional disclosure requirements (see note 18), the adoption of these changes had no impact on the condensed consolidated financial statements.

On January 1, 2012, the Company adopted changes issued by the FASB to the presentation of comprehensive income. These changes give an entity the option to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements. The option to present components of other comprehensive income as part of the statement of changes in stockholders’ equity was eliminated. The items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income were not changed. Additionally, no changes were made to the calculation and presentation of earnings per share. Management elected to present the two-statement option. Other than the change in presentation, the adoption of these changes had no impact on the condensed consolidated financial statements.

Volumetric Excise Tax Credit ("VETC")

6 Months Ended

Jun. 30, 2012

Volumetric Excise Tax Credit ("VETC")

Volumetric Excise Tax Credit ("VETC")

Note 20—Volumetric Excise Tax Credit (“VETC”)

The Company records its VETC credits as revenue in its condensed consolidated statements of operations as the credits are fully refundable and do not need to offset income tax liabilities to be received. VETC revenues for the three and six month periods ended June 30, 2011 were $4,685 and $8,902, respectively. VETC revenues for the three and six month periods ended June 30, 2012 were $0 for both periods as the legislation expired on December 31, 2011.

Subsequent Events

6 Months Ended

Jun. 30, 2012

Subsequent Events

Subsequent Events

Note 21—Subsequent Events

On July 4, 2012, IMW and HSBC amended the IMW Lines of Credit which increased the limit of the operating line of credit to CAD$13,000 from CAD$10,000 (see note 13).

On July 10, 2012, the Company issued the second CHK Note having a principal amount of $50,000 (see note 13).

General (Policies)

6 Months Ended

Jun. 30, 2012

General

Basis of Presentation

Use of Estimates

- Definition

Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. The accounting policy may also address the accounting treatment for intercompany accounts and transactions, noncontrolling interest, and the income statement treatment in consolidation for issuances of stock by a subsidiary.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-URI http://asc.fasb.org/subtopic&trid=2197480

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Reference 10: http://www.xbrl.org/2003/role/presentationRef
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Reference 13: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Principles Board Opinion (APB)
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Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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Reference 17: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
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Reference 18: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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Reference 19: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Acquisitions (Tables)

6 Months Ended

Jun. 30, 2012

ServoTech

Acquisitions

Summary of allocation of the aggregate purchase price to the estimated fair value of the assets acquired and liabilities assumed as of the acquisition date

Current assets	$	2,655
Property & equipment	239
Identifiable intangible assets	3,913
Total assets acquired	6,807
Current liabilities assumed	(2,807		)
Total purchase price	$	4,000

Restricted Cash (Tables)

6 Months Ended

Jun. 30, 2012

Restricted Cash

Schedule of components of restricted cash

	December 31, 2011		June 30, 2012
Short-term restricted cash
Standby letters of credit	$	1,237	$	1,217
DCEMB bonds — current operating costs	3,555		5,850
Total short-term restricted cash	4,792		7,067
Chesapeake loan	40,322		16,722
DCEMB bonds — long-term plant expansion	14,482		4,626
Total restricted cash	$	59,596	$	28,415

Investments (Tables)

6 Months Ended

Jun. 30, 2012

Investments

Summary of available-for-sale securities

Available-for-sale securities as of December 31, 2011 are summarized as follows:

	Amortized Cost		Gross Unrealized Losses			Estimated Fair Value
Municipal bonds & notes	$	19,703	$	(114	)	$	19,589
Zero coupon bonds	712		—			712
Corporate bonds	3,040		(12		)	3,028
Total available-for-sale securities	23,455		(126		)	23,329
Certificate of deposits	10,000		—			10,000
Total short-term investments	$	33,455	$	(126	)	$	33,329

Available-for-sale securities as of June 30, 2012 are summarized as follows:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Municipal bonds & notes	$	23,032	$	—	$	(305	)	$	22,727
Zero coupon bonds	810		3		—			813
Corporate bonds	3,558		—		(40		)	3,518
Total available-for-sale securities	27,400		3		(345		)	27,058
Certificate of deposits	10,021		—		—			10,021
Total short-term investments	$	37,421	$	3	$	(345	)	$	37,079

Derivative Transactions (Tables)

6 Months Ended

Jun. 30, 2012

Derivative Transactions

Schedule of notional amounts and weighted-average fixed prices per gasoline gallon equivalent of the Company's natural gas futures contracts

	Gallons	Weighted Average Price Per Gasoline Gallon Equivalent
July to December, 2012	440,000	$	0.79
January to May, 2013	300,000	$	0.81

Other Receivables (Tables)

6 Months Ended

Jun. 30, 2012

Other Receivables

Schedule of other receivables

	December 31, 2011		June 30, 2012
Loans to customers to finance vehicle purchases	$	1,789	$	2,223
Capital lease receivables	310		301
Accrued customer billings	5,860		8,701
Fuel tax and carbon credits	5,912		4,038
Other	5,730		5,713
	$	19,601	$	20,976

Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventories

Schedule of inventories

	December 31, 2011		June 30, 2012
Raw materials and spare parts	$	30,177	$	30,790
Work in process	2,310		4,170
Finished goods	2,800		1,510
Total	$	35,287	$	36,470

Land, Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2012

Land, Property and Equipment

Summary of land, property and equipment

	December 31, 2011			June 30, 2012
Land	$	1,198		$	1,198
LNG liquefaction plants	93,109			93,317
RNG plants	21,005			22,356
Station equipment	118,613			135,866
LNG trailers	13,532			13,564
Other equipment	26,508			37,383
Construction in progress	86,127			146,211
	360,092			449,895
Less: accumulated depreciation	(82,758		)	(94,878		)
	$	277,334		$	355,017

Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2012

Accrued Liabilities

Schedule of accrued liabilities

	December 31, 2011		June 30, 2012
Salaries and wages	$	5,088	$	6,059
Accrued gas and equipment purchases	4,773		7,225
Derivative liabilities	2,259		610
Contingent consideration obligations	378		864
Accrued property and other taxes	3,043		1,639
Accrued professional fees	875		914
Accrued employee benefits	1,431		3,328
Accrued warranty liability	3,130		3,020
Other	7,278		5,492
	$	28,255	$	29,151

Warranty Liability (Tables)

6 Months Ended

Jun. 30, 2012

Warranty Liability

Schedule of changes in warranty liability

	June 30, 2011			June 30, 2012
Warranty liability at beginning of year	$	2,338		$	3,130
Costs accrued for new warranty contracts and changes in estimates for pre-existing warranties	723			2,028
Service obligations honored	(332		)	(2,138		)
Warranty liability at end of period	$	2,729		$	3,020

Long-term Debt (Tables)

6 Months Ended

Jun. 30, 2012

Long-term Debt

Schedule of long-term debt

	December 31, 2011			June 30, 2012
IMW Notes	$	34,400		$	30,391
Northstar future payments	2,388			2,468
ServoTech future payment	—			1,400
DCE Notes	585			585
DCEMB Revenue Bonds (non recourse to the Company)	39,400			39,400
Chesapeake Notes	50,000			50,000
SLG Notes	150,000			149,000
Weaver Electric future payments	872			782
IMW assumed debt	6,657			9,449
Capital lease obligations	5,120			4,139
Total debt and capital lease obligations	289,422			287,614
Less amounts due within one year and short-term borrowings	(22,925		)	(33,784		)
Total long-term debt and capital lease obligations	$	266,497		$	253,830

Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2012

Earnings Per Share

Schedule of information required to compute basic and diluted earnings per share

	Three Months Ended June 30,		Six Months Ended June 30,
	2011	2012	2011	2012
Basic and diluted:
Weighted average number of common shares outstanding	70,302,782	86,625,655	70,199,963	86,155,678

Schedule of amounts outstanding of anti-dilutive securities

	June 30,
	2011	2012
Options	10,802,155	10,564,834
Warrants	17,130,682	2,130,682
Convertible notes	—	13,097,669
Restricted stock units	—	1,545,000

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2012

Stock-Based Compensation

Summary of compensation expense and related income tax benefit related to the stock-based compensation expense recognized

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2012		2011		2012

Stock-based compensation expense	$	3,555	$	5,768	$	6,932	$	10,448
Stock-based compensation expense, net of tax	$	3,555	$	5,768	$	6,932	$	10,448

Summary of Company's stock option activity

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Term (in years)	Aggregate Intrinsic Value
Outstanding, December 31, 2011	10,683,303		$	10.29
Options granted	1,274,000		15.07
Options exercised	(1,290,163	)	6.07
Options forfeited	(102,306	)	13.99
Outstanding, June 30, 2012	10,564,834		$	11.34	6.45	$	43,950
Exercisable, June 30, 2012	7,451,848		$	10.05	5.48	$	40,613

Schedule of weighted-average assumptions used to estimate the fair value of each option on the date of grant using the Black-Scholes option pricing model

		Six Months Ended June 30, 2012
Dividend yield		0.00%
Expected volatility		66.2% to 72.8%
Risk-free interest rate		00.9% to 01.2%
Expected life in years		6.0

Summary of the company's RSU activity

	Number of Shares	Weighted Average Fair Value at Grant Date		Weighted Average Remaining Contractual Term (in years)
Outstanding, December 31, 2011	—	—
Granted	1,545,000	$	11.42
Outstanding and non-vested, June 30, 2012	1,545,000	$	11.42	3.7

Schedule of assumptions used in estimating fair value of each RSU on the date of grant using the Monte Carlo Method

	January 25, 2012			May 8, 2012
Stock price on date of grant	$	15.11		$	16.71
Dividend yield	0.00		%	0.00		%
Expected volatility	56.51		%	58.49		%
Risk-free interest rate	0.57		%	0.56		%
Expected life in years	2.1			2.0

- Definition

Tabular disclosure of the allocation of equity-based compensation costs to a given line item on the balance sheet and income statement for the period. This may include the reporting line for the costs and the amount capitalized and expensed.

+ References + Details

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Measurements

Schedule of information by level for assets and liabilities that are measured at fair value on a recurring basis

Description	Balance at December 31, 2011		Level 1		Level 2		Level 3
Assets:
Available-for-sale securities (1):
Certificate of deposits	$	10,000	$	—	$	10,000	$	—
Municipal bonds and notes	19,589		—		19,589		—
Zero coupon bonds	712		—		712		—
Corporate bonds	3,028		—		3,028		—
Liabilities:
Natural gas futures contracts (2)	2,335		—		2,335		—
Contingent consideration obligation (3)	5,978		—		—		5,978
Series I warrants (4)	11,493		—		—		11,493

Description	Balance at June 30, 2012		Level 1		Level 2		Level 3
Assets:
Available-for-sale securities (1):
Certificate of deposits	$	10,021	$	—	$	10,021	$	—
Municipal bonds and notes	22,727		—		22,727		—
Zero coupon bonds and notes	813		—		813		—
Corporate bonds	3,518		—		3,518		—
Liabilities:
Natural gas futures contracts (2)	293		—		293		—
Contingent consideration obligation (3)	1,334		—		—		1,334
Series I warrants (4)	16,100		—		—		16,100

(1) Included in short-term investments in the condensed consolidated balance sheets. See note 5 for further information.

(2) See note 6 for further information.

(3) The current portion is included in accrued liabilities, and the long-term portion is included in other long-term liabilities in the condensed consolidated balance sheets.

(4) Included in other long-term liabilities in the condensed consolidated balance sheets.

Reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis that used significant unobservable inputs (Level 3)

Liabilities: Series I Warrants	June 30, 2011			June 30, 2012
Balance beginning of year	$	14,148		$	11,493
Total (gain) loss included in earnings	(1,535		)	4,607
Ending Balance	$	12,613		$	16,100

Liabilities: Contingent Consideration	June 30, 2011			June 30, 2012
Balance beginning of year	$	11,200		$	5,978
Total gain included in earnings	(700		)	(4,294		)
Payments	(2,159		)	(350		)
Ending Balance	$	8,341		$	1,334

Level 3 | Contingent consideration obligation

Valuation processes for Level 3 Fair Value Measurements

Schedule of fair value measurements of liabilities which fall within level 3 of the fair value hierarchy

Unobservable Input		Range or Weighted Average
Gross profit projection		$9,060 - $32,641
Probability of reaching target gross profit		0.0% - 55.0%
Volatility of gross profit (peer group)		14.1% - 59.1% (simple average 32.9%)
Risk adjusted discount rate		39.0%

Level 3 | Series I Warrant

Valuation processes for Level 3 Fair Value Measurements

Schedule of fair value measurements of liabilities which fall within level 3 of the fair value hierarchy

Unobservable Input		Range or Weighted Average
Current market price of the Company’s common stock		$15.50
Exercise price of the warrant		$12.68
Remaining term of the warrant		3.83
Implied volatility of the Company’s common stock		58.6% – 61.6%
Assumed discount rate		Simple average 0.6%

- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References + Details

- Definition

Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

+ References + Details

General (Details)	Jun. 30, 2012 item
General
Number of natural gas fueling locations	313
Number of states where the natural gas stations are located	29

Acquisitions (Details) - ServoTech - USD ($) $ in Thousands	1 Months Ended	6 Months Ended
Acquisitions (Details) - ServoTech - USD ($) $ in Thousands	Feb. 28, 2011	Jun. 30, 2012	Apr. 30, 2012	Feb. 25, 2011
Natural Gas Fueling Compressors
Ownership interest acquired (as a percent)				19.90%
Remaining interest for which the entity has an option to purchase (as a percent)	80.10%
Amount to be paid to purchase remaining interest	$ 2,800
Period during which remaining interest may be acquired	15 months
Amount paid to purchase remaining interest			$ 1,400
Amount agreed to be paid on October 31, 2012		$ 1,400
Cash payment				$ 1,200
Allocation of aggregate purchase price
Current assets		2,655
Property, plant and equipment		239
Identifiable intangible assets		3,913
Total assets acquired		6,807
Current liabilities assumed		(2,807)
Total purchase price		$ 4,000
Minimum
Allocation of aggregate purchase price
Identifiable intangible assets, estimated useful lives		2 years
Maximum
Allocation of aggregate purchase price
Identifiable intangible assets, estimated useful lives		7 years

Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Restricted Cash
Short-term restricted cash	$ 7,067	$ 4,792
Long term restricted cash	21,348	54,804
Total restricted cash	28,415	59,596
DCEMB bonds - current operating costs
Restricted Cash
Short-term restricted cash	5,850	3,555
DCEMB bonds - long-term plant expansion
Restricted Cash
Long term restricted cash	4,626	14,482
Chesapeake Notes
Restricted Cash
Long term restricted cash	16,722	40,322
Standby letters of credit
Restricted Cash
Short-term restricted cash	$ 1,217	$ 1,237

Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Short-term investments
Gross Unrealized Losses	$ (345)	$ (126)
Certificate of deposits	10,021	10,000
Total short-term investments at amortized cost	37,421	33,455
Total short-term investments	37,079	33,329
Municipal bonds & notes
Short-term investments
Amortized Cost	23,032	19,703
Gross Unrealized Losses	(305)	(114)
Estimated Fair Value	22,727	19,589
Zero coupon bonds
Short-term investments
Amortized Cost	810	712
Gross Unrealized Gains	3
Estimated Fair Value	813	712
Corporate bonds
Short-term investments
Amortized Cost	3,558	3,040
Gross Unrealized Losses	(40)	(12)
Estimated Fair Value	3,518	3,028
Total available-for-securities
Short-term investments
Amortized Cost	27,400	23,455
Gross Unrealized Gains	3
Gross Unrealized Losses	(345)	(126)
Estimated Fair Value	$ 27,058	$ 23,329

Derivative Transactions (Details) $ in Thousands	3 Months Ended		6 Months Ended
Derivative Transactions (Details) $ in Thousands	Jun. 30, 2012 USD ($) gallon USD	Jun. 30, 2011 USD ($)	Jun. 30, 2012 USD ($) gallon USD	Jun. 30, 2011 USD ($)	Dec. 31, 2011 USD ($)
Derivative Transactions
Unrealized gains on derivative instruments recognized in other comprehensive income (loss)	$ 1,251	$ 505	$ 1,966	$ 1,213
Short-term liability related to derivative instruments included in accrued liabilities	610		610		$ 2,259
Natural gas futures contracts
Derivative Transactions
Unrealized gains on derivative instruments recognized in other comprehensive income (loss)	1,251	505	1,966	1,213
Derivative liability	293	2,858	293	2,858
Short-term liability related to derivative instruments included in accrued liabilities		2,715		2,715
Long-term liability related to derivative instruments included in other long-term liabilities		143		143
Loss on derivative instrument recognized in cost of sales	$ 1,196	$ 680	$ 2,303	$ 1,431
Natural gas futures contracts \| July to December, 2012
Notional amounts and weighted-average fixed prices per gasoline gallon equivalent of derivative instruments
Gallons \| gallon	440,000		440,000
Natural gas futures contracts \| July to December, 2012 \| Weighted Average
Notional amounts and weighted-average fixed prices per gasoline gallon equivalent of derivative instruments
Price Per Gasoline Gallon Equivalent \| USD	0.79		0.79
Natural gas futures contracts \| January to May, 2013
Notional amounts and weighted-average fixed prices per gasoline gallon equivalent of derivative instruments
Gallons \| gallon	300,000		300,000
Natural gas futures contracts \| January to May, 2013 \| Weighted Average
Notional amounts and weighted-average fixed prices per gasoline gallon equivalent of derivative instruments
Price Per Gasoline Gallon Equivalent \| USD	0.81		0.81

Other Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Other Receivables
Other receivables	$ 20,976	$ 19,601
Loans to customers to finance vehicle purchases
Other Receivables
Other receivables	2,223	1,789
Capital lease receivables
Other Receivables
Other receivables	301	310
Accrued customer billings
Other Receivables
Other receivables	8,701	5,860
Fuel tax and carbon credits
Other Receivables
Other receivables	4,038	5,912
Other
Other Receivables
Other receivables	$ 5,713	$ 5,730

Inventories (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Inventories
Raw materials and spare parts	$ 30,790	$ 30,177
Work in process	4,170	2,310
Finished goods	1,510	2,800
Total	$ 36,470	$ 35,287

Land, Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Land, Property and Equipment
Land, property and equipment, gross	$ 449,895	$ 360,092
Less: accumulated depreciation	(94,878)	(82,758)
Land, property and equipment, net	355,017	277,334
Land
Land, Property and Equipment
Land, property and equipment, gross	1,198	1,198
LNG liquefaction plants
Land, Property and Equipment
Land, property and equipment, gross	93,317	93,109
RNG plants
Land, Property and Equipment
Land, property and equipment, gross	22,356	21,005
Station equipment
Land, Property and Equipment
Land, property and equipment, gross	135,866	118,613
LNG trailers
Land, Property and Equipment
Land, property and equipment, gross	13,564	13,532
Other equipment
Land, Property and Equipment
Land, property and equipment, gross	37,383	26,508
Construction in progress
Land, Property and Equipment
Land, property and equipment, gross	$ 146,211	$ 86,127

Investments in Other Entities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cost method investments
Payment for investments	$ 1,024	$ 2,700
VPG
Cost method investments
Payment for investments	1,024
Investment amount	$ 14,544

- Definition

This element represents the aggregate carrying amount of all cost-method investments held by the Company. Generally, such investments do not have readily determinable fair values and are not required to be accounted for by the equity method. The carrying amount of such securities equates to cost, adjusted for other-than-temporary impairment. The cost method and lower-of-cost or market, an adaptation of the cost method, is generally followed for most investments in noncontrolled corporations, in some corporate joint ventures, and to a lesser extent in unconsolidated subsidiaries, particularly foreign.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 325
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-1
-Paragraph 22
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 6
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 18
-Paragraph 5
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 4
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 18
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
-Number FAS115-1/124-1
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Investments in Other Entities (Details 2) $ in Thousands	Jun. 30, 2012 USD ($)
Peru JV
Equity method investments
Investment amount	$ 2,410

Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2011	Dec. 31, 2010
Accrued Liabilities
Salaries and wages	$ 6,059	$ 5,088
Accrued gas and equipment purchases	7,225	4,773
Derivative liabilities	610	2,259
Contingent consideration obligations	864	378
Accrued property and other taxes	1,639	3,043
Accrued professional fees	914	875
Accrued employee benefits	3,328	1,431
Accrued warranty liability	3,020	3,130	$ 2,729	$ 2,338
Other	5,492	7,278
Total	$ 29,151	$ 28,255

Warranty Liability (Details) - USD ($) $ in Thousands	6 Months Ended
Warranty Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jun. 30, 2011
Changes in warrant liability
Warranty liability at beginning of year	$ 3,130	$ 2,338
Costs accrued for new warranty contracts and changes in estimates for pre-existing warranties	2,028	723
Service obligations honored	(2,138)	(332)
Warranty liability at end of period	$ 3,020	$ 2,729

Long-term Debt (Details) $ in Thousands	1 Months Ended									6 Months Ended
Long-term Debt (Details) $ in Thousands	May 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Oct. 31, 2011 USD ($) item	Jan. 31, 2011 USD ($) item	Dec. 31, 2010 USD ($) item	Nov. 30, 2010 USD ($)	Sep. 30, 2010 USD ($) item	Aug. 31, 2010	Aug. 31, 2009 USD ($)	Jun. 30, 2012 USD ($)	Oct. 03, 2011 USD ($)	Mar. 25, 2011 USD ($)	Oct. 07, 2009 USD ($)	Aug. 15, 2008 USD ($)
Long-term Debt
Long term restricted cash		$ 54,804								$ 21,348
Short-term restricted cash		4,792								7,067
Facility A Loan
Long-term Debt
Debt issuance amount														$ 18,000
Facility B Loan
Long-term Debt
Debt amount														12,000
Percentage of principal required to be paid as per debt repayment schedule									20.00%
Principal amount required to be paid as per debt repayment schedule									$ 2,800
Frequency of payments required									annual
Prior annual payment of principal delayed						$ 2,059
A Line of Credit
Long-term Debt
Debt amount													$ 20,000
Option to extend the maturity date from August 14, 2011								1 year
Unused facility fee on the unused portion of credit facility ( as a percent )								0.10%
DCE Loan
Long-term Debt
Debt issuance amount														$ 14,000
DCEMB Revenue Bonds
Long-term Debt
Debt issuance amount												$ 40,200
Coupon interest rate (as a percent)												6.60%
Debt Service Coverage Ratio, number of calendar quarters measured \| item				4
Restricted cash classification as current threshold period				12 months
Long term restricted cash										4,626
Short-term restricted cash										5,850
DCEMB Revenue Bonds \| Minimum
Long-term Debt
Required debt service coverage ratio for the most recent four calendar quarters				1.25
Projected debt service coverage ratio for the next four calendar quarters				1.25
Debt covenant period considered for cash on hand				35 days
Debt covenant value, cash on hand				$ 1,300
IMW Notes
Long-term Debt
Frequency of payments required							annual
Number of annual payments \| item							4
Annual payment required							$ 12,500
Annual cash required to be paid on debt instrument							5,000			$ 5,000
Cash and/or common stock required to be paid or issued on debt instrument							$ 7,500
Northstar future payments
Long-term Debt
Frequency of payments required					annual
Number of annual payments \| item					5
Annual payment required					$ 700
Amount paid		$ 700
Weaver Electric future payments
Long-term Debt
Frequency of payments required			annual
Number of annual payments \| item			4
Annual payment required			$ 250
Amount paid	$ 125
Cash paid in connection with acquisition											$ 1,000
Dallas Clean Energy McCommas Bluff, LLC
Long-term Debt
Interest acquired (as a percent)												70.00%
Dallas Clean Energy, LLC ("DCE")
Long-term Debt
Interest acquired (as a percent)														70.00%

Long-term Debt (Details 2) $ / shares in Units, ৳ in Thousands, ¥ in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	1 Months Ended
	Apr. 30, 2012 USD ($) shares	Aug. 31, 2011 D item	Jul. 31, 2011 D item	Sep. 30, 2010 CAD ($)	Jun. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)	Aug. 24, 2011 USD ($) $ / shares	Jul. 11, 2011 USD ($) $ / shares	Sep. 07, 2010 CAD ($)	Sep. 07, 2010 CNY (¥)	Sep. 07, 2010 BDT (৳)	Sep. 07, 2010 COP ($)
Long-term Debt
Long term restricted cash related to debt instrument					$ 21,348	$ 54,804
IMW Lines of Credit \| Minimum
Long-term Debt
Debt covenant, tangible net worth				$ 7,000
IMW Lines of Credit \| January 1, 2012 through March 31, 2012 \| Maximum
Long-term Debt
Debt covenant, debt to tangible net worth ratio				3.75
IMW Lines of Credit \| April 1, 2012 through June 30, 2012 \| Maximum
Long-term Debt
Debt covenant, debt to tangible net worth ratio				3.5
IMW Lines of Credit \| July 1, 2012 and thereafter \| Maximum
Long-term Debt
Debt covenant, debt to tangible net worth ratio				3.0
IMW Lines of Credit \| Until March 31, 2012 \| Minimum
Long-term Debt
Debt covenant, current assets to current liabilities ratio				1.15
IMW Lines of Credit \| April 1, 2012 and thereafter \| Minimum
Long-term Debt
Debt covenant, current assets to current liabilities ratio				1.25
IMW assumed operating line of credit
Long-term Debt
Line of credit limit									$ 10,000
IMW assumed operating line of credit \| HSBC's prime rate
Long-term Debt
Debt, variable interest rate basis				HSBC's Prime
Percentage of margin added to reference rate to determine interest rate on debt									1.00%	1.00%	1.00%	1.00%
IMW assumed operating line of credit \| HSBC's U.S. base rate
Long-term Debt
Debt, variable interest rate basis				HSBC's U.S. Base Rate
Percentage of margin added to reference rate to determine interest rate on debt									1.00%	1.00%	1.00%	1.00%
IMW assumed operating line of credit \| LIBOR
Long-term Debt
Debt, variable interest rate basis				LIBOR
Percentage of margin added to reference rate to determine interest rate on debt									2.25%	2.25%	2.25%	2.25%
Demand revolving line of credit
Long-term Debt
Line of credit limit									$ 2,000
Demand revolving bank guarantee and standby letter of credit line
Long-term Debt
Line of credit limit									1,115
IMW bank guarantee line
Long-term Debt
Line of credit limit									3,000
IMW forward exchange contract line
Long-term Debt
Line of credit limit									13,750
IMW MasterCard
Long-term Debt
Line of credit limit									150
IMW Renminbi operating line of credit
Long-term Debt
Line of credit limit									$ 811	¥ 5,000
Debt, variable interest rate basis				6 month People's Bank of China
Percentage of margin added to reference rate to determine interest rate on debt									2.50%	2.50%	2.50%	2.50%
IMW Renminbi sub-limit line of credit
Long-term Debt
Line of credit limit \| ¥										¥ 5,000
IMW Renminbi line of credit maximum
Long-term Debt
Line of credit limit \| ¥										¥ 5,000
IMW Bengali Taka operating line of credit
Long-term Debt
Line of credit limit									$ 206		৳ 16,750
Interest rate (as a percent)									14.00%	14.00%	14.00%	14.00%
IMW Columbian Peso operating line of credit
Long-term Debt
Line of credit limit									$ 97			$ 170,000
Debt, variable interest rate basis				Colombia benchmark rate
IMW Columbian Peso operating line of credit \| Minimum
Long-term Debt
Percentage of margin added to reference rate to determine interest rate on debt									7.00%	7.00%	7.00%	7.00%
IMW Columbian Peso operating line of credit \| Maximum
Long-term Debt
Percentage of margin added to reference rate to determine interest rate on debt									12.00%	12.00%	12.00%	12.00%
Chesapeake Notes
Long-term Debt
Interest rate (as a percent)								7.50%
Number of convertible promissory notes to be issued \| item			3
Principal amount of each debt instrument to be issued								$ 50,000
Conversion price of shares (in dollars per share) \| $ / shares								$ 15.80
Percentage of the trade price of the entity's common stock that the conversion price must be at premium in order for the notes to be convertible (as a percent)								40.00%
Number of consecutive trading days used to determine the conversion obligation on the notes			30 days
Number of days within 30 consecutive trading days in which the trade price of the entity's common stock must be at premium of the conversion price for the notes to be convertible \| D			20
Period during which the debt instrument principal balance is required to be paid			7 years
Long term restricted cash related to debt instrument					$ 16,722	$ 40,322
Monthly liquidated damages expressed as a percentage of principal amount of debt instrument under Registration Rights Agreement (as a percent)			0.75%
Chesapeake Notes \| Minimum
Long-term Debt
Number of registration statements required to be filed under Registration Rights Agreement \| item			1
Number of underwritten offerings in which the entity would be required to participate under Registration Rights Agreement \| item			1
Chesapeake Notes \| Maximum
Long-term Debt
Commitment received, limit of debt securities to be purchased								$ 150,000
SLG Notes
Long-term Debt
Commitment received, limit of debt securities to be purchased							$ 150,000
Interest rate (as a percent)							7.50%
Conversion price of shares (in dollars per share) \| $ / shares							$ 15.00
Percentage of the trade price of the entity's common stock that the conversion price must be at premium in order for the notes to be convertible (as a percent)							40.00%
Number of consecutive trading days used to determine the conversion obligation on the notes		30 days
Number of days within 30 consecutive trading days in which the trade price of the entity's common stock must be at premium of the conversion price for the notes to be convertible \| D		20
Amount of principal and accrued interest under debt conversion	$ 1,003
Common stock issued upon conversion of debt (in shares) \| shares	66,888
Period during which the debt instrument principal balance is required to be paid		5 years
Monthly liquidated damages expressed as a percentage of principal amount of debt instrument under Registration Rights Agreement (as a percent)		0.75%
SLG Notes \| Minimum
Long-term Debt
Number of registration statements required to be filed under Registration Rights Agreement \| item		1
Number of underwritten offerings in which the entity would be required to participate under Registration Rights Agreement \| item		1
SLG Notes \| Maximum
Long-term Debt
Annual liquidated damages limit expressed as a percentage of aggregate principal amount of debt instrument under Registration Rights Agreement (as a percent)		4.00%

Long-term Debt (Details 3) - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Long-term Debt
Total debt and capital lease obligations	$ 287,614	$ 289,422
Less amounts due within one year and short-term borrowings	(33,784)	(22,925)
Total long-term debt and capital lease obligations	253,830	266,497
IMW Notes
Long-term Debt
Total debt and capital lease obligations	30,391	34,400
Northstar future payments
Long-term Debt
Total debt and capital lease obligations	2,468	2,388
ServoTech future payment
Long-term Debt
Total debt and capital lease obligations	1,400
DCE Notes
Long-term Debt
Total debt and capital lease obligations	585	585
DCEMB Revenue Bonds (non recourse to the company)
Long-term Debt
Total debt and capital lease obligations	39,400	39,400
Chesapeake Notes
Long-term Debt
Total debt and capital lease obligations	50,000	50,000
SLG Notes
Long-term Debt
Total debt and capital lease obligations	149,000	150,000
Weaver Electric future payments
Long-term Debt
Total debt and capital lease obligations	782	872
IMW assumed debt
Long-term Debt
Total debt and capital lease obligations	9,449	6,657
Capital lease obligations
Long-term Debt
Total debt and capital lease obligations	$ 4,139	$ 5,120

Earnings Per Share (Details) - shares	3 Months Ended		6 Months Ended
Earnings Per Share (Details) - shares	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Basic and diluted:
Weighted average number of common shares outstanding	86,625,655	70,302,782	86,155,678	70,199,963
Options
Amounts outstanding of anti-dilutive securities
Amounts outstanding			10,564,834	10,802,155
Warrants
Amounts outstanding of anti-dilutive securities
Amounts outstanding			2,130,682	17,130,682
Convertible notes
Amounts outstanding of anti-dilutive securities
Amounts outstanding			13,097,669
Restricted stock units
Amounts outstanding of anti-dilutive securities
Amounts outstanding			1,545,000

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	May 31, 2012	Jan. 31, 2012	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	May 08, 2012	Jan. 25, 2012
Summary of stock-based compensation expense
Stock-based compensation expense			$ 5,768	$ 3,555	$ 10,448	$ 6,932
Stock-based compensation expense, net of tax			$ 5,768	$ 3,555	10,448	6,932
Stock options
Summary of stock-based compensation expense
Stock-based compensation expense					$ 6,970	6,932
Number of Shares
Outstanding, beginning of the period		10,683,303			10,683,303
Options granted					1,274,000
Options exercised					(1,290,163)
Options forfeited					(102,306)
Outstanding, at the end of the period			10,564,834		10,564,834
Exercisable, at the end of the period			7,451,848		7,451,848
Weighted Average Exercise Price
Outstanding at the beginning of the period		$ 10.29			$ 10.29
Options granted					15.07
Options exercised					6.07
Options forfeited					13.99
Outstanding at the end of the period			$ 11.34		11.34
Exercisable at the end of the period			$ 10.05		$ 10.05
Weighted Average Remaining Contractual Term
Outstanding at the end of period					6 years 5 months 12 days
Exercisable at the end of period					5 years 5 months 23 days
Aggregate Intrinsic Value
Outstanding at the end of period			$ 43,950		$ 43,950
Exercisable at the end of period			40,613		$ 40,613
Weighted average assumption used for grants in 2012
Dividend yield					0.00%
Expected volatility, minimum					66.20%
Expected volatility, maximum					72.80%
Risk-free interest rate, minimum					0.90%
Risk-free interest rate, maximum					1.20%
Expected life					6 years
Other disclosures
Total unrecognized compensation cost related to non-vested shares			$ 20,636		$ 20,636
Weighted average period over which the total unrecognized compensation cost related to non-vested units is expected to be recognized					1 year 3 months 18 days
Total fair value of shares vested					$ 3,670
Intrinsic value of all options exercised					$ 11,459	$ 657
Weighted-average grant date fair values of options granted					$ 9.09	$ 9.07
Restricted Stock Units
Summary of stock-based compensation expense
Stock-based compensation expense					$ 3,478
Number of Shares
Granted					1,545,000
Outstanding at the end of the period			1,545,000		1,545,000
Weighted Average Fair Value at Grant Date (in dollars per share)
Granted					$ 11.42
Outstanding at the end of the period			$ 11.42		$ 11.42
Weighted Average Remaining Contractual Term
Weighted Average Remaining Contractual Term					3 years 8 months 12 days
Weighted average assumption used for grants in 2012
Stock price on date of grant							$ 16.71	$ 15.11
Dividend yield	0.00%	0.00%
Expected volatility	58.49%	56.51%
Risk-free interest rate	0.56%	0.57%
Expected life	2 years	2 years 1 month 6 days
Other disclosures
Weighted average period over which the total unrecognized compensation cost related to non-vested units is expected to be recognized					1 year 8 months 12 days
Number of shares of common stock to be received for each performance unit					1
Number of consecutive trading days during which the closing price of the entity's common stock must exceed the closing price on the grant date in order for a holder to receive one share of common stock for each award					20 days
Period from the date of grant after which awards will be automatically forfeited if the Stock Price Condition is not satisfied					4 years
Percentage of the closing price of the entity's common stock that the closing price must equal or exceed in order for an award holder to receive one share of common stock for each award					135.00%
Total unrecognized compensation cost related to non-vested units			$ 14,164		$ 14,164
Restricted Stock Units \| Minimum
Other disclosures
Period from the date of grant in which the closing price of the entity's common stock must exceed the closing price in order for a holder to receive one share of common stock for each award					2 years
Restricted Stock Units \| Maximum
Other disclosures
Period from the date of grant in which the closing price of the entity's common stock must exceed the closing price in order for a holder to receive one share of common stock for each award					4 years

Environmental Matters, Litigation, Claims, Commitments and Contingencies (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 15, 2010
Environmental Matters, Litigation, Claims, Commitments and Contingencies
Claims disallowed under Volumetric Excise Tax Credit program by IRS		$ 5,073
Maximum
Income tax examination
Maximum possible range of losses associated with disallowed claims	$ 5,073

Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2012	Jul. 15, 2010
Income Taxes
Claims disallowed under Volumetric Excise Tax Credit program by IRS		$ 5,073
Maximum
Income tax examination
Maximum possible range of losses associated with disallowed claims	$ 5,073

Fair Value Measurements (Details) - Fair value measured on recurring basis - USD ($) $ in Thousands	Jun. 30, 2012	Dec. 31, 2011
Liabilities:
Natural gas futures contracts	$ 293	$ 2,335
Fair value of contingent consideration	1,334	5,978
Series I warrants	16,100	11,493
Certificate of deposits
Assets:
Available-for-sale securities	10,021	10,000
Municipal bonds and notes
Assets:
Available-for-sale securities	22,727	19,589
Zero coupon bonds and notes
Assets:
Available-for-sale securities	813	712
Corporate bonds
Assets:
Available-for-sale securities	3,518	3,028
Level 2
Liabilities:
Natural gas futures contracts	293	2,335
Level 2 \| Certificate of deposits
Assets:
Available-for-sale securities	10,021	10,000
Level 2 \| Municipal bonds and notes
Assets:
Available-for-sale securities	22,727	19,589
Level 2 \| Zero coupon bonds and notes
Assets:
Available-for-sale securities	813	712
Level 2 \| Corporate bonds
Assets:
Available-for-sale securities	3,518	3,028
Level 3
Liabilities:
Fair value of contingent consideration	1,334	5,978
Series I warrants	$ 16,100	$ 11,493

Fair Value Measurements (Details 2) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Liabilities: Series I warrants
Reconciliation of the beginning and ending balances of items measured at fair value using significant unobservable inputs (Level 3)
Balance beginning of year	$ 11,493	$ 14,148
Total (gain) loss included in earnings	4,607	(1,535)
Ending Balance	16,100	12,613
Liabilities: Contingent consideration obligations
Reconciliation of the beginning and ending balances of items measured at fair value using significant unobservable inputs (Level 3)
Balance beginning of year	5,978	11,200
Total (gain) loss included in earnings	(4,294)	(700)
Payments	(350)	(2,159)
Ending Balance	$ 1,334	$ 8,341

Fair Value Measurements (Details 3) - Level 3 $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2012 USD ($) $ / shares
Contingent consideration obligation \| DCF
Unobservable Input
Discount rate (as a percent)	39.00%
Contingent consideration obligation \| DCF \| Minimum
Unobservable Input
Gross profit projection \| $	$ 9,060
Probability of reaching target gross profit (as a percent)	0.00%
Volatility of gross profit (peer group) (as a percent)	14.10%
Contingent consideration obligation \| DCF \| Maximum
Unobservable Input
Gross profit projection \| $	$ 32,641
Probability of reaching target gross profit (as a percent)	55.00%
Volatility of gross profit (peer group) (as a percent)	59.10%
Contingent consideration obligation \| DCF \| Simple average
Unobservable Input
Volatility of gross profit (peer group) (as a percent)	32.90%
Series I Warrant \| Black-Scholes Model
Unobservable Input
Current market price of the company's common stock \| $ / shares	$ 15.50
Exercise price of the warrant \| $ / shares	12.68
Remaining term of the warrant	3 years 9 months 29 days
Series I Warrant \| Black-Scholes Model \| Minimum
Unobservable Input
Implied volatility of the Company's common stock (as a percent)	58.60%
Series I Warrant \| Black-Scholes Model \| Maximum
Unobservable Input
Implied volatility of the Company's common stock (as a percent)	61.60%
Series I Warrant \| Black-Scholes Model \| Simple average
Unobservable Input
Discount rate (as a percent)	0.60%

Volumetric Excise Tax Credit ("VETC") (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011
Volumetric Excise Tax Credit ("VETC")
VETC credits recognized as revenue	$ 4,685	$ 8,902

Subsequent Events (Details) $ in Thousands, $ in Thousands	1 Months Ended
Subsequent Events (Details) $ in Thousands, $ in Thousands	Jul. 31, 2012 USD ($)	Jul. 04, 2012 CAD ($)	Sep. 07, 2010 CAD ($)
IMW assumed operating line of credit
Subsequent Events
Line of credit limit			$ 10,000
Subsequent event \| IMW assumed operating line of credit
Subsequent Events
Line of credit limit		$ 13,000
Line of credit limit, before amendment		$ 10,000
Subsequent event \| CHK Note
Subsequent Events
Debt instrument issued	$ 50,000