CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended			9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011		Sep. 30, 2012	Sep. 30, 2011
REVENUES
Sales and other operating revenues	$ 7,130,629	$ 7,194,393	[1]	$ 21,231,317	$ 20,781,506	[1]
Gain on sale of assets	(31)	60	[1]	94	23,192	[1]
Interest and other income (expense)	(8,321)	25,767	[1]	5,407	39,390	[1]
Total revenues	7,122,277	7,220,220	[1]	21,236,818	20,844,088	[1]
COSTS AND EXPENSES
Crude oil and product purchases	5,667,359	5,727,873	[1]	16,813,044	16,633,221	[1]
Operating expenses	526,969	512,511	[1]	1,547,828	1,448,063	[1]
Exploration expenses, including undeveloped lease amortization	94,063	85,505	[1]	243,714	303,827	[1]
Selling and general expenses	85,509	72,858	[1]	261,287	218,337	[1]
Depreciation, depletion and amortization	330,253	271,270	[1]	972,663	783,531	[1]
Accretion of asset retirement obligations	10,005	8,638	[1]	29,052	26,162	[1]
Redetermination of Terra Nova working interest	0	0	[1]	0	(5,351)	[1]
Interest expense	12,941	17,329	[1]	36,278	41,648	[1]
Interest capitalized	(11,461)	(2,475)	[1]	(27,360)	(11,547)	[1]
Total costs and expenses	6,715,638	6,693,509	[1]	19,876,506	19,437,891	[1]
Income from continuing operations before income taxes	406,639	526,711	[1]	1,360,312	1,406,197	[1]
Income tax expense	177,728	179,401	[1]	558,657	558,773	[1]
Income from continuing operations	228,911	347,310	[1]	801,655	847,424	[1]
Income (loss) from discontinued operations, net of taxes	(2,230)	58,804	[1]	10,534	139,206	[1]
NET INCOME	$ 226,681	$ 406,114	[1]	$ 812,189	$ 986,630	[1]
INCOME PER COMMON SHARE - BASIC
Income from continuing operations	$ 1.18	$ 1.80	[1]	$ 4.13	$ 4.38	[1]
Income (loss) from discontinued operations	$ (0.01)	$ 0.30	[1]	$ 0.05	$ 0.72	[1]
Net income	$ 1.17	$ 2.10	[1]	$ 4.18	$ 5.10	[1]
INCOME PER COMMON SHARE - DILUTED
Income from continuing operations	$ 1.17	$ 1.79	[1]	$ 4.12	$ 4.36	[1]
Income (loss) from discontinued operations	$ (0.01)	$ 0.30	[1]	$ 0.05	$ 0.71	[1]
Net income	$ 1.16	$ 2.09	[1]	$ 4.17	$ 5.07	[1]
Average common shares outstanding
Basic	194,290,277	193,517,785	[1]	194,126,104	193,342,825	[1]
Diluted	195,057,952	194,411,116	[1]	194,874,572	194,548,846	[1]

[1] Reclassified to conform to current presentation.