Proved Developed and Undeveloped Reserves, (Energy) Impact of New Accounting Guidance

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- Definition

Proved Developed and Undeveloped Reserves, Impact of New Accounting Guidance

+ References

No definition available.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Energy measure of increase in quantity of proved reserve of oil and gas resulting from the extension of the proved acreage of previously discovered reservoir or discovery of new field with proved reserve or of new reservoir of proved reserve in old field, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ 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)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

Energy measure of proved reserve of oil and gas, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ References

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- Definition

Energy measure of decrease in quantity of proved reserve of oil and gas resulting from production, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ 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 (e)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

Energy measure of increase in quantity of proved reserve of oil and gas resulting from purchase of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ 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 (c)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

Energy measure of increase (decrease) in quantity of proved reserve of oil and gas related to revision of a previous estimate resulting from new information, except for an increase in proved acreage, or change in economic factors, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ 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 (a)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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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

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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
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(a)(2))
-URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862

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- Definition

Production of proved reserves.

+ 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 (e)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

Purchase of minerals in place.

+ 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 (c)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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- Definition

Energy measure of decrease in quantity of proved reserve of oil and gas resulting from sale of mineral in place, stated in a unit of energy. For example, but not limited to, barrel of oil equivalents (BOE) or one thousand cubic feet of natural gas equivalent (Mcfe).

+ 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 (f)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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Sales of minerals in place.

+ 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 (f)
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

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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.

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Net quantities of an enterprise's interests in proved developed reserves of either 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 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 9
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61884-109447

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61797-109447

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Energy measure of proved undeveloped 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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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.

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Supplemental Information on Oil and Natural Gas Producing Activities (Unaudited) - Summary of Changes in Estimated Oil and Natural Gas Reserves (Unaudited) (Details) Mcf in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2016 MBoe MBbls Mcf	Oct. 01, 2016 MBoe MBbls Mcf	Dec. 31, 2017 MBoe MBbls Mcf	Dec. 31, 2016 MBoe MBbls Mcf	Dec. 31, 2015 MBoe MBbls Mcf	Dec. 31, 2014 MBoe MBbls Mcf
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Revisions of previous estimates (MBoe) \| MBoe				(105,400)
Extensions and discoveries (MBoe) \| MBoe				7,800
Sales of reserves in place (MBoe) \| MBoe				(24,600)
Predecessor
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, Beginning balance (MBoe) \| MBoe	137,992	324,626		324,626	515,856
Adoption of ASU 2015-02 (MBoe) \| MBoe		(19,084)
Revisions of previous estimates (MBoe) \| MBoe		(130,709)			(234,610)
Acquisitions of new reserves (MBoe) \| MBoe					27,566
Extensions and discoveries (MBoe) \| MBoe		2,785			45,809
Sales of reserves in place (MBoe) \| MBoe		(24,598)
Production (MBoe) \| MBoe		(15,027)			(29,995)
Proved developed and undeveloped reserves, Ending balance (MBoe) \| MBoe		137,992			324,626
Proved developed reserves (MBoe) \| MBoe		126,121			260,498	336,420
Proved undeveloped reserves (MBoe) \| MBoe		11,872			64,129	179,436
Predecessor \| Oil
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance	27,252	77,911		77,911	126,031
Adoption of ASU 2015-02		(6,971)
Revisions of previous estimates		(39,973)			(70,708)
Acquisitions of new reserves					22,447
Extensions and discoveries		987			9,741
Sales of reserves in place		(387)
Production		(4,315)			(9,600)
Proved developed and undeveloped reserves, ending balance		27,252			77,911
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)		24,541			48,639	79,022
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)		2,711			29,272	47,009
Predecessor \| Oil \| Non-controlling Interest
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance		7,004		7,004	11,027
Proved developed and undeveloped reserves, ending balance					7,004
Predecessor \| NGL
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance	33,019	61,075		61,075	91,786
Adoption of ASU 2015-02		(3,695)
Revisions of previous estimates		(21,475)			(37,384)
Acquisitions of new reserves					2,460
Extensions and discoveries		472			9,257
Sales of reserves in place		0
Production		(3,358)			(5,044)
Proved developed and undeveloped reserves, ending balance		33,019			61,075
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)		30,238			51,089	56,823
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)		2,781			9,986	34,963
Predecessor \| NGL \| Non-controlling Interest
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance		3,694		3,694	4,761
Proved developed and undeveloped reserves, ending balance					3,694
Predecessor \| Natural Gas
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance \| Mcf	466,328	1,113,840		1,113,840	1,788,233
Adoption of ASU 2015-02 \| Mcf		(50,508)
Revisions of previous estimates \| Mcf		(415,568)			(759,106)
Acquisitions of new reserves \| Mcf					15,952
Extensions and discoveries \| Mcf		7,955			160,865
Sales of reserves in place \| Mcf		(145,267)
Production \| Mcf		(44,124)			(92,104)
Proved developed and undeveloped reserves, ending balance \| Mcf		466,328			1,113,840
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) \| Mcf		428,050			964,617	1,203,447
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) \| Mcf		38,278			149,223	584,786
Predecessor \| Natural Gas \| Non-controlling Interest
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance \| Mcf		50,508		50,508	70,833
Proved developed and undeveloped reserves, ending balance \| Mcf					50,508
Successor
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, Beginning balance (MBoe) \| MBoe			163,955
Revisions of previous estimates (MBoe) \| MBoe	25,270		10,879
Acquisitions of new reserves (MBoe) \| MBoe			202
Extensions and discoveries (MBoe) \| MBoe	5,034		19,373
Sales of reserves in place (MBoe) \| MBoe			(1,909)
Production (MBoe) \| MBoe	(4,341)		(14,906)
Proved developed and undeveloped reserves, Ending balance (MBoe) \| MBoe	163,955		177,594	163,955
Proved developed reserves (MBoe) \| MBoe	120,706		123,765	120,706
Proved undeveloped reserves (MBoe) \| MBoe	43,249		53,829	43,249
Successor \| Oil
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance			52,884
Revisions of previous estimates	23,978		804
Acquisitions of new reserves			18
Extensions and discoveries	2,868		12,446
Sales of reserves in place			(204)
Production	(1,214)		(4,157)
Proved developed and undeveloped reserves, ending balance	52,884		61,791	52,884
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)	25,911		25,845	25,911
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)	26,973		35,946	26,973
Successor \| NGL
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance			33,607
Revisions of previous estimates	1,139		2,628
Acquisitions of new reserves			70
Extensions and discoveries	448		1,914
Sales of reserves in place			(529)
Production	(999)		(3,376)
Proved developed and undeveloped reserves, ending balance	33,607		34,314	33,607
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)	29,290		29,922	29,290
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)	4,317		4,392	4,317
Successor \| Natural Gas
Proved Developed and Undeveloped Reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas)
Proved developed and undeveloped reserves, beginning balance \| Mcf			464,782
Revisions of previous estimates \| Mcf	915		44,679
Acquisitions of new reserves \| Mcf			683
Extensions and discoveries \| Mcf	10,309		30,080
Sales of reserves in place \| Mcf			(7,055)
Production \| Mcf	(12,770)		(44,237)
Proved developed and undeveloped reserves, ending balance \| Mcf	464,782		488,932	464,782
Proved developed reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) \| Mcf	393,028		407,988	393,028
Proved undeveloped reserves (in MBbls for Oil and NGLs/MMcf for Natural Gas) \| Mcf	71,754		80,944	71,754