Consolidated Statements of Operations (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues
Oil, Gas and NGL Sales	$ 4,809	$ 4,037	$ 3,179
Income from Equity Method Investees	206	186	193
Other Revenues	0	0	32	[1]
Total Revenues	5,015	4,223	3,404
Costs and Expenses
Production Expense	850	673	558
Exploration Expense	415	409	277
Depreciation, Depletion and Amortization	1,568	1,370	878
General and Administrative	433	384	339
Gain on Divestitures	(36)	(154)	(25)
Asset Impairments	86	104	757
Other Operating (Income) Expense, Net	43	25	86
Total Operating Expenses	3,359	2,811	2,870
Operating Income	1,656	1,412	534
Other (Income) Expense
(Gain) Loss on Commodity Derivative Instruments	133	(75)	(42)
Interest, Net of Amount Capitalized	158	125	65
Other Non-Operating (Income) Expense, Net	21	6	9
Total Other (Income) Expense	312	56	32
Income from Continuing Operations Before Income Taxes	1,344	1,356	502
Income Tax Provision	437	391	90
Income from Continuing Operations	907	965	412
Discontinued Operations, Net of Tax	71	62	41
Net Income	$ 978	$ 1,027	$ 453
Earnings Per Share, Basic
Income from Continuing Operations (in dollars per share)	$ 2.53	$ 2.71	$ 1.17
Discontinued Operations, Net of Tax (in dollars per share)	$ 0.19	$ 0.18	$ 0.11
Net Income (in dollars per share)	$ 2.72	$ 2.89	$ 1.28
Earnings Per Share, Diluted
Income from Continuing Operations (in dollars per share)	$ 2.50	$ 2.68	$ 1.15
Discontinued Operations, Net of Tax (in dollars per share)	$ 0.19	$ 0.18	$ 0.12
Net Income (in dollars per share)	$ 2.69	$ 2.86	$ 1.27
Weighted Average Number of Shares Outstanding, Basic (in shares)	359	356	353
Weighted Average Number of Shares Outstanding, Diluted (in shares)	363	359	357

[1] Other revenues consist primarily of electricity sales from the Machala power plant, located in Machala, Ecuador, through May 2011. Electricity generation expense includes all operating and non-operating expenses associated with the plant, including depreciation and changes in the allowance for doubtful accounts. In May 2011, we transferred our assets in Ecuador to the Ecuadorian government.