Supplemental Information On Oil And Gas Operations (Tables)

12 Months Ended

Dec. 31, 2016

Oil And Gas Exploration And Production Industries Disclosures [Abstract]

	Year Ended December 31, 2016
	U.S.		Canada		Total
	(Millions)
Property acquisition costs:
Proved properties	$	237	$	—	$	237
Unproved properties		1,356		2		1,358
Exploration costs		345		49		394
Development costs		1,034		109		1,143
Costs incurred	$	2,972	$	160	$	3,132

	Year Ended December 31, 2015
	U.S.		Canada		Total
	(Millions)
Property acquisition costs:
Proved properties	$	193	$	2	$	195
Unproved properties		634		83		717
Exploration costs		478		109		587
Development costs		3,269		402		3,671
Costs incurred	$	4,574	$	596	$	5,170

	Year Ended December 31, 2014
	U.S.		Canada		Total
	(Millions)
Property acquisition costs:
Proved properties	$	5,210	$	—	$	5,210
Unproved properties		1,176		1		1,177
Exploration costs		270		52		322
Development costs		4,400		1,063		5,463
Costs incurred	$	11,056	$	1,116	$	12,172

Capitalized Costs

	December 31, 2016
	U.S.			Canada			Total
	(Millions)
Proved properties	$	61,401		$	14,247		$	75,648
Unproved properties		2,092			1,345			3,437
Total oil and gas properties		63,493			15,592			79,085
Accumulated DD&A		(57,323	)		(13,107	)		(70,430	)
Net capitalized costs	$	6,170		$	2,485		$	8,655

	December 31, 2015
	U.S.			Canada			Total
	(Millions)
Proved properties	$	64,443		$	13,747		$	78,190
Unproved properties		1,352			1,232			2,584
Total oil and gas properties		65,795			14,979			80,774
Accumulated DD&A		(58,312	)		(11,185	)		(69,497	)
Net capitalized costs	$	7,483		$	3,794		$	11,277

Oil And Gas Properties Not Subject To Amortization

	Costs Incurred In
	2016		2015		2014		Prior to 2014		Total
	(Millions)
Acquisition costs	$	1,176	$	579	$	246	$	464	$	2,465
Exploration costs		107		134		89		206		536
Development costs		12		—		23		150		185
Capitalized interest		63		52		37		99		251
Total oil and gas properties not subject to amortization	$	1,358	$	765	$	395	$	919	$	3,437

Results Of Operations

	December 31, 2016
	U.S.			Canada			Total
	(Millions)
Oil, gas and NGL sales	$	3,198		$	984		$	4,182
Lease operating expenses		(1,123	)		(459	)		(1,582	)
General and administrative expenses		(148	)		(20	)		(168	)
Production and property taxes		(200	)		(31	)		(231	)
Depreciation, depletion and amortization		(817	)		(326	)		(1,143	)
Gains on asset sales		1,351			—			1,351
Asset impairments		(2,809	)		(1,291	)		(4,100	)
Accretion of asset retirement obligations		(49	)		(25	)		(74	)
Income tax benefit		—			245			245
Results of operations	$	(597	)	$	(923	)	$	(1,520	)
Depreciation, depletion and amortization per Boe	$	4.68		$	6.65		$	5.11

	December 31, 2015
	U.S.			Canada			Total
	(Millions)
Oil, gas and NGL sales	$	4,356		$	1,026		$	5,382
Lease operating expenses		(1,551	)		(553	)		(2,104	)
General and administrative expenses		(196	)		(28	)		(224	)
Production and property taxes		(309	)		(33	)		(342	)
Depreciation, depletion and amortization		(2,107	)		(474	)		(2,581	)
Asset impairments		(17,992	)		(1,257	)		(19,249	)
Accretion of asset retirement obligations		(47	)		(27	)		(74	)
Income tax benefit		5,547			314			5,861
Results of operations	$	(12,299	)	$	(1,032	)	$	(13,331	)
Depreciation, depletion and amortization per Boe	$	10.21		$	11.30		$	10.40

	December 31, 2014
	U.S.			Canada			Total
	(Millions)
Oil, gas and NGL sales	$	7,867		$	2,043		$	9,910
Lease operating expenses		(1,559	)		(773	)		(2,332	)
General and administrative expenses		(153	)		(57	)		(210	)
Production and property taxes		(466	)		(37	)		(503	)
Depreciation, depletion and amortization		(2,365	)		(531	)		(2,896	)
Gains on asset sales		—			1,077			1,077
Accretion of asset retirement obligations		(49	)		(39	)		(88	)
Income tax expense		(1,199	)		(568	)		(1,767	)
Results of operations ⁽¹⁾	$	2,076		$	1,115		$	3,191
Depreciation, depletion and amortization per Boe	$	11.41		$	13.80		$	11.79

(1)	During 2014, Devon recognized a Canadian goodwill impairment, which is not reflected in these tables. See Note 5 for additional information.

Proved Reserves


	Oil (MMBbls)
	U.S.			Canada			Total
Proved developed and undeveloped reserves:
December 31, 2013		229			56			285
Revisions due to prices		(1	)		—			(1	)
Revisions other than price		(38	)		1			(37	)
Extensions and discoveries		94			5			99
Purchase of reserves		132			—			132
Production		(48	)		(10	)		(58	)
Sale of reserves		(17	)		(29	)		(46	)
December 31, 2014		351			23			374
Revisions due to prices		(53	)		4			(49	)
Revisions other than price		(52	)		2			(50	)
Extensions and discoveries		51			3			54
Purchase of reserves		5			—			5
Production		(60	)		(10	)		(70	)
December 31, 2015		242			22			264
Revisions due to prices		(18	)		(2	)		(20	)
Revisions other than price		(2	)		3			1
Extensions and discoveries		36			2			38
Purchase of reserves		8			—			8
Production		(47	)		(8	)		(55	)
Sale of reserves		(25	)		—			(25	)
December 31, 2016		194			17			211
Proved developed reserves as of:
December 31, 2013		194			56			250
December 31, 2014		255			23			278
December 31, 2015		203			22			225
December 31, 2016		160			17			177
Proved developed-producing reserves as of:
December 31, 2013		178			51			229
December 31, 2014		224			19			243
December 31, 2015		192			19			211
December 31, 2016		143			13			156
Proved undeveloped reserves as of:
December 31, 2013		35			—			35
December 31, 2014		96			—			96
December 31, 2015		39			—			39
December 31, 2016		34			—			34


	Bitumen (MMBbls)
	U.S.		Canada			Total
Proved developed and undeveloped reserves:
December 31, 2013		—		552			552
Revisions due to prices		—		(37	)		(37	)
Revisions other than price		—		18			18
Extensions and discoveries		—		8			8
Production		—		(20	)		(20	)
December 31, 2014		—		521			521
Revisions due to prices		—		103			103
Revisions other than price		—		(84	)		(84	)
Extensions and discoveries		—		11			11
Production		—		(31	)		(31	)
December 31, 2015		—		520			520
Revisions due to prices		—		23			23
Revisions other than price		—		(19	)		(19	)
Production		—		(40	)		(40	)
December 31, 2016		—		484			484
Proved developed reserves as of:
December 31, 2013		—		111			111
December 31, 2014		—		137			137
December 31, 2015		—		219			219
December 31, 2016		—		190			190
Proved developed-producing reserves as of:
December 31, 2013		—		111			111
December 31, 2014		—		137			137
December 31, 2015		—		219			219
December 31, 2016		—		190			190
Proved undeveloped reserves as of:
December 31, 2013		—		441			441
December 31, 2014		—		384			384
December 31, 2015		—		301			301
December 31, 2016		—		294			294


	Gas (Bcf)
	U.S.			Canada			Total
Proved developed and undeveloped reserves:
December 31, 2013		8,550			758			9,308
Revisions due to prices		191			45			236
Revisions other than price		(299	)		4			(295	)
Extensions and discoveries		335			8			343
Purchase of reserves		457			—			457
Production		(660	)		(41	)		(701	)
Sale of reserves		(923	)		(738	)		(1,661	)
December 31, 2014		7,651			36			7,687
Revisions due to prices		(1,412	)		(9	)		(1,421	)
Revisions other than price		(3	)		(6	)		(9	)
Extensions and discoveries		171			—			171
Purchase of reserves		17			—			17
Production		(579	)		(8	)		(587	)
Sale of reserves		(37	)		—			(37	)
December 31, 2015		5,808			13			5,821
Revisions due to prices		(103	)		—			(103	)
Revisions other than price		628			10			638
Extensions and discoveries		280			—			280
Purchase of reserves		33			—			33
Production		(510	)		(7	)		(517	)
Sale of reserves		(521	)		—			(521	)
December 31, 2016		5,615			16			5,631
Proved developed reserves as of:
December 31, 2013		7,707			752			8,459
December 31, 2014		6,948			36			6,984
December 31, 2015		5,694			13			5,707
December 31, 2016		5,361			16			5,377
Proved developed-producing reserves as of:
December 31, 2013		7,425			680			8,105
December 31, 2014		6,746			34			6,780
December 31, 2015		5,546			13			5,559
December 31, 2016		5,243			16			5,259
Proved undeveloped reserves as of:
December 31, 2013		843			6			849
December 31, 2014		703			—			703
December 31, 2015		114			—			114
December 31, 2016		254			—			254


	Natural Gas Liquids (MMBbls)
	U.S.			Canada			Total
Proved developed and undeveloped reserves:
December 31, 2013		552			23			575
Revisions due to prices		7			1			8
Revisions other than price		2			—			2
Extensions and discoveries		47			—			47
Purchase of reserves		57			—			57
Production		(50	)		(1	)		(51	)
Sale of reserves		(37	)		(23	)		(60	)
December 31, 2014		578			—			578
Revisions due to prices		(119	)		—			(119	)
Revisions other than price		(6	)		—			(6	)
Extensions and discoveries		24			—			24
Purchase of reserves		1			—			1
Production		(50	)		—			(50	)
December 31, 2015		428			—			428
Revisions due to prices		(13	)		—			(13	)
Revisions other than price		48			—			48
Extensions and discoveries		42			—			42
Purchase of reserves		7			—			7
Production		(42	)		—			(42	)
Sale of reserves		(45	)		—			(45	)
December 31, 2016		425			—			425
Proved developed reserves as of:
December 31, 2013		468			23			491
December 31, 2014		486			—			486
December 31, 2015		411			—			411
December 31, 2016		387			—			387
Proved developed-producing reserves as of:
December 31, 2013		442			21			463
December 31, 2014		467			—			467
December 31, 2015		393			—			393
December 31, 2016		370			—			370
Proved undeveloped reserves as of:
December 31, 2013		84			—			84
December 31, 2014		92			—			92
December 31, 2015		17			—			17
December 31, 2016		38			—			38


	Total (MMBoe) ⁽¹⁾
	U.S.			Canada			Total
Proved developed and undeveloped reserves:
December 31, 2013		2,205			758			2,963
Revisions due to prices		38			(29	)		9
Revisions other than price		(86	)		21			(65	)
Extensions and discoveries		197			14			211
Purchase of reserves		265			—			265
Production		(207	)		(39	)		(246	)
Sale of reserves		(207	)		(176	)		(383	)
December 31, 2014		2,205			549			2,754
Revisions due to prices		(408	)		106			(302	)
Revisions other than price		(59	)		(83	)		(142	)
Extensions and discoveries		104			14			118
Purchase of reserves		9			—			9
Production		(206	)		(42	)		(248	)
Sale of reserves		(7	)		—			(7	)
December 31, 2015		1,638			544			2,182
Revisions due to prices		(48	)		21			(27	)
Revisions other than price		151			(14	)		137
Extensions and discoveries		124			2			126
Purchase of reserves		20			—			20
Production		(174	)		(49	)		(223	)
Sale of reserves		(157	)		—			(157	)
December 31, 2016		1,554			504			2,058
Proved developed reserves as of:
December 31, 2013		1,947			315			2,262
December 31, 2014		1,900			165			2,065
December 31, 2015		1,563			243			1,806
December 31, 2016		1,439			210			1,649
Proved developed-producing reserves as of:
December 31, 2013		1,857			297			2,154
December 31, 2014		1,815			162			1,977
December 31, 2015		1,509			240			1,749
December 31, 2016		1,386			207			1,593
Proved undeveloped reserves as of:
December 31, 2013		258			443			701
December 31, 2014		305			384			689
December 31, 2015		75			301			376
December 31, 2016		115			294			409

(1)

Gas reserves are converted to Boe at the rate of six Mcf per Bbl of oil, based upon the approximate relative energy content of gas and oil. This rate is not necessarily indicative of the relationship of natural gas and oil prices. Bitumen and NGL reserves are converted to Boe on a one-to-one basis with oil.

Proved Undeveloped Reserves


	U.S.			Canada			Total
Proved undeveloped reserves as of December 31, 2015		75			301			376
Extensions and discoveries		78			—			78
Revisions due to prices		(8	)		10			2
Revisions other than price		(1	)		(4	)		(5	)
Sale of reserves		(1	)		—			(1	)
Conversion to proved developed reserves		(28	)		(13	)		(41	)
Proved undeveloped reserves as of December 31, 2016		115			294			409

Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves

	Year Ended December 31, 2016
	U.S.			Canada			Total
	(Millions)
Future cash inflows	$	22,847		$	9,672		$	32,519
Future costs:
Development		(2,784	)		(2,201	)		(4,985	)
Production		(14,484	)		(6,287	)		(20,771	)
Future income tax expense		—			(57	)		(57	)
Future net cash flow		5,579			1,127			6,706
10% discount to reflect timing of cash flows		(2,128	)		(380	)		(2,508	)
Standardized measure of discounted future net cash flows	$	3,451		$	747		$	4,198

	Year Ended December 31, 2015
	U.S.			Canada			Total
	(Millions)
Future cash inflows	$	27,398		$	13,047		$	40,445
Future costs:
Development		(3,306	)		(2,759	)		(6,065	)
Production		(17,251	)		(6,891	)		(24,142	)
Future income tax expense		—			(475	)		(475	)
Future net cash flow		6,841			2,922			9,763
10% discount to reflect timing of cash flows		(1,973	)		(1,102	)		(3,075	)
Standardized measure of discounted future net cash flows	$	4,868		$	1,820		$	6,688

	Year Ended December 31, 2014
	U.S.			Canada			Total
	(Millions)
Future cash inflows	$	75,847		$	31,371		$	107,218
Future costs:
Development		(7,168	)		(3,619	)		(10,787	)
Production		(29,740	)		(14,232	)		(43,972	)
Future income tax expense		(11,021	)		(3,026	)		(14,047	)
Future net cash flow		27,918			10,494			38,412
10% discount to reflect timing of cash flows		(12,819	)		(5,119	)		(17,938	)
Standardized measure of discounted future net cash flows	$	15,099		$	5,375		$	20,474

Schedule Of Principal Changes In The Standardized Measure Of Discounted Future Net Cash Flows Attributable To Proved Reserves

	Year Ended December 31,
	2016			2015			2014
	(Millions)
Beginning balance	$	6,688		$	20,474		$	15,741
Net changes in prices and production costs		(2,128	)		(20,756	)		2,561
Oil, bitumen, gas and NGL sales, net of production costs		(2,163	)		(2,704	)		(6,865	)
Changes in estimated future development costs		112			1,313			(768	)
Extensions and discoveries, net of future development costs		660			1,129			4,836
Purchase of reserves		222			95			6,422
Sales of reserves in place		(560	)		(79	)		(2,384	)
Revisions of quantity estimates		(32	)		(1,451	)		(746	)
Previously estimated development costs incurred during the period		663			2,158			1,933
Accretion of discount		403			567			1,746
Foreign exchange and other		105			(1,254	)		(107	)
Net change in income taxes		228			7,196			(1,895	)
Ending balance	$	4,198		$	6,688		$	20,474

- Definition

Tabular disclosure of the results of operations for oil and gas producing activities for the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 27
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62352-109447

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-10.(a)(17)(ii),(c)(3)(ii)(A)(1))
-URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
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Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e62299-109447

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 55
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=34713648&loc=d3e63071-109448

+ Details

- Definition

Tabular disclosure of the net quantities of an enterprise's interests in proved developed and undeveloped reserves of (a) crude oil (including condensate and natural gas liquids), (b) natural gas (including coal bed methane), (c) synthetic oil, (d) synthetic gas, and (e) other nonrenewable natural resources that are intended to be upgraded during the period as of the beginning of the period, changes in quantities during the period, and as of the end of the period.

+ References + Details

- Definition

Tabular disclosure of the future net cash flows relating to proved oil and gas reserves and oil and gas subject to purchase under long-term agreements in which the enterprise participates in the operation of the properties on which the oil and gas is located or otherwise serves as the producer. This information is presented in aggregate and for each geographic area for which reserve quantities are disclosed.

+ References + Details