Disposal Group, Not Discontinued Operation, Purchase Price Adjustments

No definition available.

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- Definition

Disposal Group, Not Discontinued Operation, Transaction Costs

+ References

No definition available.

+ Details

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- Definition

Payments To Acquire Unproved Leasehold Properties

+ References

No definition available.

+ Details

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- Definition

Sale of Assets, Sale Price

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2443-110228

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2941-110230

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- Definition

Fractional interest owned based on working interests or other economic arrangements of lease area on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-K (SK)
-Number 229
-Section 1208
-Paragraph (b)

+ Details

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- Definition

The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

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- Definition

Energy measure of interests in proved developed reserves of crude oil, including condensate and natural gas liquids, natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas.

+ References

No definition available.

+ Details

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Acquisition and Disposition of Properties (Additional Information) (Details) a in Thousands, $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended
	Oct. 31, 2014 USD ($) a	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) MMBoe	Dec. 31, 2014 USD ($) MMBoe	Dec. 31, 2013 USD ($) MMBoe	Feb. 16, 2016 MMBoe
Business Acquisition [Line Items]
Proved developed reserves at end of period (BOE) \| MMBoe			184.0	264.5	259.8
Payments to acquire unproved leasehold properties			$ 85.7	$ 68.5	$ 26.8
San Juan Basin properties
Business Acquisition [Line Items]
Proved developed reserves at end of period (BOE) \| MMBoe			16.930	69.038
Sale of assets		$ 395.0
Purchase price adjustments		11.0
Cash received from sale of oil properties		384.0
Transaction costs		2.8
Payments to acquire unproved leasehold properties	$ 22.8
Net acres \| a	15
PUERTO RICO \| San Juan Basin properties
Business Acquisition [Line Items]
Pre-tax gain on disposal		$ 27.0
Subsequent Event \| Delaware Basin
Business Acquisition [Line Items]
Proved developed reserves at end of period (BOE) \| MMBoe						25.200