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Acquisitions (Tables)

12 Months Ended

Dec. 31, 2011

Kerogen Acquisition [Member]

Business Acquisition [Line Items]

Schedule Of Consideration Paid And The Fair Value Of The Assets Acquired And Liabilities Assumed

			September 30,
Consideration given to Kerogen Resources, Inc. (in thousands):
Cash		$	27,087
Recognized amounts of identifiable assets acquired and liabilities assumed:
Proved developed properties		$	25,178
Proved undeveloped properties			1,647
Unproved lease acquisition costs			360
Seismic costs			667
Asset retirement obligations			(765	)
Total identifiable net assets		$	27,087

Consolidated Results Of Operations

			September 30,				September 30,
		Year Ended
		December 31, 2009
		Actual				Pro Forma
		(In thousands)
		Unaudited
Kerogen Acquisition Properties:
Revenues		$	37,755			$	41,999
Net Loss		$	(15,209	)		$	(15,461	)

Fidelity Acquisition [Member]

Business Acquisition [Line Items]

Schedule Of Consideration Paid And The Fair Value Of The Assets Acquired And Liabilities Assumed

			September 30,
Consideration given to Fidelity Exploration and Production Company (in thousands):
Cash		$	10,681
Recognized amounts of identifiable assets acquired and liabilities assumed:
Proved developed properties		$	4,668
Proved undeveloped properties			2,415
Unproved lease acquisition costs			3,450
Seismic costs			667
Asset retirement obligations			(519	)
Total identifiable net assets		$	10,681

Consolidated Results Of Operations

			September 30,				September 30,
		Year Ended
		December 31, 2009
		Actual				Pro Forma
		(In thousands)
		Unaudited
Fidelity Acquisition Properties:
Revenues		$	37,755			$	40,934
Net Loss		$	(15,209	)		$	(15,872	)

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- Definition

Tabular disclosure of pro forma results of operations for a material business acquisition or series of individually immaterial business acquisitions that are material in the aggregate.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=6909870&loc=d3e1392-128463



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 54

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141

-Paragraph 55

-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 FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 141R

-Paragraph 68

-Subparagraph r(2, 3)

-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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- Definition

Tabular disclosure of the amounts recognized as of the acquisition date for each major class of assets acquired and liabilities assumed. May include but not limited to the following: (a) acquired receivables; (b) contingencies recognized at the acquisition date; and (c) the fair value of noncontrolling interests in the acquiree.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Topic 805

-SubTopic 20

-Publisher FASB

-Number

-Article

-Subparagraph

-Name Accounting Standards Codification

-Paragraph 1

-Section 50

-URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472

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