undeveloped reserves transferred to developed

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- Definition

Total amount of product committed to be supplied under existing contracts or agreements.

+ References

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

-Publisher SEC

-Name Industry Guide

-Number 2

-Paragraph 8

-Subparagraph A

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- Definition

The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ 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

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 13

-Subparagraph (c)

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- Definition

Additions to proved reserves that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 5

-Subparagraph (d)

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- Definition

Changes in proved reserve estimates resulting from application of improved recovery techniques.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 5

-Subparagraph (b)

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- Definition

The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 5

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-Name Accounting Standards Codification

-Topic 932

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-10.(a)(2))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 10

-Paragraph a

-Subparagraph 2

-Article 4

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- Definition

Production of proved reserves.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 5

-Subparagraph (e)

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Revisions represent changes in previous estimates of proved reserves, either upward or downward, resulting from new information (except for an increase in proved acreage) normally obtained from development drilling and production history or resulting from change in economic factors.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 5

-Subparagraph (a)

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- Definition

Net quantities of an enterprise's interests in proved undeveloped reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other renewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 4

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-Topic 932

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Supplemental Gas Data Oil and Gas Reserve Quantities (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 MMcf	Dec. 31, 2013 MMcf	Dec. 31, 2012 MMcf	Dec. 31, 2011 MMcf	Jan. 02, 2012 MMcf
Reserve Quantities [Line Items]
Oil and Gas Delivery Commitments and Contracts, Remaining Contractual Volume	153.5
Payments to Acquire Property, Plant, and Equipment	$ 1,493,425,000	$ 1,496,056,000	$ 1,245,497,000
Beginning reserves	6,827,616,000	5,731,214,000	3,993,458,000	3,480,027,000
Price Changes	218,168,000	171,953,000	241,989,000
Proved Developed and Undeveloped Reserves, Improved Recovery	15,512,000	104,757,000	(526,611,000)
Extensions and discoveries(b)	1,098,436,000	1,633,426,000	954,378,000
Proved Developed and Undeveloped Reserves, Production	(235,714,000)	(172,380,000)	(156,325,000)
proved undeveloped [Member]
Reserve Quantities [Line Items]
Payments to Acquire Property, Plant, and Equipment	$ 389,838
Proved undeveloped reserves (Volume)	3,628,910,000				3,216,920,000
undeveloped reserves transferred to developed	(526,839,000)
Beginning reserves	3,628,910,000	3,216,920,000	1,827,975,000
Extensions and discoveries(b)	949,156,000
Price Changes [Member]
Reserve Quantities [Line Items]
Extensions and discoveries(b)	(1,293,000)
Plan and Other Revisions [Member]
Reserve Quantities [Line Items]
Extensions and discoveries(b)	(9,034,000)
Proved Developed [Member]
Reserve Quantities [Line Items]
Beginning reserves	3,198,706,000	2,514,294,000	2,165,483,000
Natural Gas [Member]
Reserve Quantities [Line Items]
Beginning reserves	6,317,600,000	5,585,107,000	3,905,437,000	3,470,551,000
Price Changes	(46,560,000)	176,045,000	243,442,000
Proved Developed and Undeveloped Reserves, Improved Recovery	15,512,000	104,728,000	(526,608,000)
Extensions and discoveries(b)	979,801,000	1,567,634,000
Proved Developed and Undeveloped Reserves, Production	216,260,000	168,737,000	155,052,000
Natural Gas [Member] \| proved undeveloped [Member]
Reserve Quantities [Line Items]
Beginning reserves	3,337,694,000	3,114,695,000	1,755,525,000
Natural Gas [Member] \| Plan and Other Revisions [Member]
Reserve Quantities [Line Items]
Extensions and discoveries(b)			873,104,000
Natural Gas [Member] \| Proved Developed [Member]
Reserve Quantities [Line Items]
Beginning reserves	2,979,906,000	2,470,412,000	2,149,912,000
Natural Gas Liquids [Member]
Reserve Quantities [Line Items]
Beginning reserves	77,791,000	21,547,000	13,375,000	25,000
Price Changes	40,363,000	(1,017,000)	469,000
Proved Developed and Undeveloped Reserves, Improved Recovery	0	4,000	0
Extensions and discoveries(b)	18,459,000	9,623,000
Proved Developed and Undeveloped Reserves, Production	2,578,000	438,000	111,000
Natural Gas Liquids [Member] \| proved undeveloped [Member]
Reserve Quantities [Line Items]
Beginning reserves	45,385,000	15,607,000	12,075,000
Natural Gas Liquids [Member] \| Plan and Other Revisions [Member]
Reserve Quantities [Line Items]
Extensions and discoveries(b)			12,992,000
Natural Gas Liquids [Member] \| Proved Developed [Member]
Reserve Quantities [Line Items]
Beginning reserves	32,406,000	5,939,000	1,717,000
Crude Oil and NGL [Member]
Reserve Quantities [Line Items]
Beginning reserves	7,213,000	2,807,000	1,297,000	1,555,000
Price Changes	3,756,000	336,000	(710,000)
Proved Developed and Undeveloped Reserves, Improved Recovery	0	1,000	(1,000)
Extensions and discoveries(b)	1,314,000	1,343,000
Proved Developed and Undeveloped Reserves, Production	664,000	170,000	100,000
Crude Oil and NGL [Member] \| proved undeveloped [Member]
Reserve Quantities [Line Items]
Beginning reserves	3,151,000	1,431,000	0
Crude Oil and NGL [Member] \| Plan and Other Revisions [Member]
Reserve Quantities [Line Items]
Extensions and discoveries(b)			553,000
Crude Oil and NGL [Member] \| Proved Developed [Member]
Reserve Quantities [Line Items]
Beginning reserves	4,062,000	1,375,000	878,000