Statement of Consolidated Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
REVENUES AND OTHER:
Oil and gas production revenues	$ 4,282	$ 3,047	$ 12,515	$ 8,709
Other	46	(34)	76	(51)
Total revenues and other	4,328	3,013	12,591	8,658
OPERATING EXPENSES:
Depreciation, depletion and amortization	1,065	787	3,030	2,155
Asset retirement obligation accretion	39	25	114	74
Lease operating expenses	661	507	1,946	1,393
Gathering and transportation	72	43	221	126
Taxes other than income	244	158	663	522
General and administrative	112	89	327	260
Merger, acquisitions & transition	4	8	15	16
Financing costs, net	37	59	123	174
Total operating expenses	2,234	1,676	6,439	4,720
INCOME BEFORE INCOME TAXES	2,094	1,337	6,152	3,938
Current income tax provision	473	207	1,692	889
Deferred income tax provision	619	352	1,065	706
NET INCOME	1,002	778	3,395	2,343
Preferred stock dividends	19	13	57	13
INCOME ATTRIBUTABLE TO COMMON STOCK	$ 983	$ 765	$ 3,338	$ 2,330
NET INCOME PER COMMON SHARE:
Basic	$ 2.56	$ 2.14	$ 8.70	$ 6.78
Diluted	$ 2.50	$ 2.12	$ 8.49	$ 6.72
WEIGHTED-AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	384	357	384	344
Diluted	400	367	400	349
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.15	$ 0.15	$ 0.45	$ 0.45