Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues and other income:
Sales and other operating revenues, including related party	$ 1,300	$ 2,316	$ 3,887	$ 6,735
Marketing revenues	84	554	471	1,713
Income from equity method investments	36	89	98	346
Net loss on disposal of assets	(109)	(3)	(108)	(88)
Other income	12	15	38	55
Total revenues and other income	1,323	2,971	4,386	8,761
Costs and expenses:
Production	406	593	1,300	1,697
Marketing, including purchases from related parties	84	554	471	1,710
Other operating	93	99	281	303
Exploration	585	96	786	314
Depreciation, depletion and amortization	717	737	2,289	2,060
Impairments	337	109	381	130
Taxes other than income	46	115	191	319
General and administrative	125	160	464	486
Total costs and expenses	2,393	2,463	6,163	7,019
Income (loss) from operations	(1,070)	508	(1,777)	1,742
Net interest and other	(75)	(55)	(180)	(180)
Income (loss) from continuing operations before income taxes	(1,145)	453	(1,957)	1,562
Provision (benefit) for income taxes	(396)	149	(546)	500
Income (loss) from continuing operations	(749)	304	(1,411)	1,062
Discontinued operations	0	127	0	1,058
Net income (loss)	$ (749)	$ 431	$ (1,411)	$ 2,120
Basic:
Income (loss) from continuing operations per basic share	$ (1.11)	$ 0.45	$ (2.09)	$ 1.56
Discontinued operations per basic share	0.00	0.19	0.00	1.55
Net income (loss), per basic share	(1.11)	0.64	(2.09)	3.11
Diluted:
Income (loss) from continuing operations per diluted share	(1.11)	0.45	(2.09)	1.55
Discontinued operations per diluted share	0.00	0.19	0.00	1.55
Net income (loss), per diluted share	(1.11)	0.64	(2.09)	3.10
Dividends paid, per share	$ 0.21	$ 0.21	$ 0.63	$ 0.59
Weighted average common shares outstanding, basic	677	675	677	681
Weighted average common shares outstanding, diluted	677	678	677	684