Statement of Consolidated Operations (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
REVENUES AND OTHER:
Oil and gas production revenues	$ 4,355	$ 2,969	$ 8,233	$ 5,662
Other	(17)	3	30	(17)
Total revenues and other	4,338	2,972	8,263	5,645
OPERATING EXPENSES:
Depreciation, depletion and amortization	1,029	729	1,965	1,368
Asset retirement obligation accretion	38	25	75	49
Lease operating expenses	662	446	1,285	886
Gathering and transportation	73	43	149	83
Taxes other than income	255	187	419	364
General and administrative	103	84	215	171
Merger, acquisitions & transition	6	8	11	8
Financing costs, net	41	56	86	115
Total operating expenses	2,207	1,578	4,205	3,044
INCOME BEFORE INCOME TAXES	2,131	1,394	4,058	2,601
Current income tax provision	576	339	1,219	682
Deferred income tax provision	296	195	446	354
NET INCOME	1,259	860	2,393	1,565
Preferred stock dividends	19		38
INCOME ATTRIBUTABLE TO COMMON STOCK	$ 1,240	$ 860	$ 2,355	$ 1,565
NET INCOME PER COMMON SHARE:
Basic	$ 3.23	$ 2.55	$ 6.14	$ 4.64
Diluted	$ 3.17	$ 2.53	$ 6.03	$ 4.61
WEIGHTED-AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	384	338	383	337
Diluted	397	339	397	339
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.15	$ 0.15	$ 0.30	$ 0.30