Statement of Consolidated Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
REVENUES AND OTHER:
Oil and gas production revenues	$ 4,457	$ 3,878
Other	79	47
Total revenues and other	4,536	3,925
Depreciation, depletion and amortization
Recurring	1,219	936
Additional	521
Asset retirement obligation accretion	55	37
Lease operating expenses	673	623
Gathering and transportation	77	76
Taxes other than income	257	164
General and administrative	128	112
Merger, acquisitions & transition	6	5
Financing costs, net	40	45
Total operating expenses	2,976	1,998
INCOME BEFORE INCOME TAXES	1,560	1,927
Current income tax provision	725	643
Deferred income tax provision	38	150
NET INCOME	797	1,134
Preferred stock dividends	19	19
INCOME ATTRIBUTABLE TO COMMON STOCK	$ 778	$ 1,115
NET INCOME PER COMMON SHARE:
Basic	$ 2.02	$ 2.91
Diluted	$ 2.00	$ 2.86
WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING:
Basic	385	383
Diluted	399	397
DIVIDENDS DECLARED PER COMMON SHARE	$ 0.17	$ 0.15