STATEMENT OF CONSOLIDATED CASH FLOWS (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 1,333	$ 3,395
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	5,701	3,030
Asset retirement obligation accretion	172	114
Provision for deferred income taxes	174	1,065
Other	62	(34)
Changes in operating assets and liabilities:
Receivables	128	(417)
Inventories	29	(35)
Drilling advances	(334)	(23)
Deferred charges and other	(200)	(54)
Accounts payable	168	119
Accrued expenses	(814)	(38)
Deferred credits and noncurrent liabilities	3	49
NET CASH PROVIDED BY OPERATING ACTIVITIES	6,422	7,171
CASH FLOWS FROM INVESTING ACTIVITIES:
Additions to oil and gas property	(6,387)	(4,758)
Additions to gas gathering, transmission and processing facilities	(586)	(472)
Acquisition of Cordillera Energy Partners III, LLC	(2,666)
Equity investment in Yara Pilbara Holdings Pty Limited	(439)
Acquisitions, other	(122)	(509)
Proceeds from sale of oil and gas properties	26	202
Other, net	(386)	(89)
NET CASH USED IN INVESTING ACTIVITIES	(10,560)	(5,626)
CASH FLOWS FROM FINANCING ACTIVITIES:
Commercial paper, credit facility and bank notes, net	1,827	(940)
Fixed rate debt borrowings	2,991
Payments on fixed rate debt	(400)
Dividends paid	(246)	(230)
Other	(11)	77
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	4,161	(1,093)
NET INCREASE IN CASH AND CASH EQUIVALENTS	23	452
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR	295	134
CASH AND CASH EQUIVALENTS AT END OF PERIOD	318	586
SUPPLEMENTARY CASH FLOW DATA:
Interest paid, net of capitalized interest	130	165
Income taxes paid, net of refunds	$ 1,876	$ 1,335