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Statement of Consolidated Cash Flows (Unaudited) (USD $)
In Millions
6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 1,543 $ 964
Adjustments to reconcile net income to net cash provided by operating activities    
Depreciation, depletion and amortization 1,146 1,100
Exploratory dry hole costs and lease impairment 351 188
Provision (benefit) for deferred income taxes (1) (62)
(Income) loss from equity investment in HOVENSA L.L.C. 97 91
Gains on asset sales (343) (58)
Stock compensation expense 48 54
Changes in operating assets and liabilities and other (17) (471)
Net cash provided by operating activities 2,824 1,806
CASH FLOWS FROM INVESTING ACTIVITIES    
Capital expenditures (2,457) (1,689)
Proceeds from asset sales 359 183
Other, net (57) (36)
Net cash used in investing activities (2,155) (1,542)
Debt with maturities of greater than 90 days    
Borrowings 4 0
Repayments (49) (157)
Cash dividends paid (102) (98)
Other, net 64 (8)
Net cash used in financing activities (83) (263)
NET INCREASE IN CASH AND CASH EQUIVALENTS 586 1
CASH AND CASH EQUIVALENTS AT BEGINNING OF YEAR 1,608 1,362
CASH AND CASH EQUIVALENTS AT END OF PERIOD $ 2,194 $ 1,363