Consolidated Balance Sheet (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 396	$ 95
Restricted cash	0	90
Accounts receivable	395	474
Inventories	38	163
Derivative assets	48	0
Deferred taxes	0	22
Other current assets	29	57
Total current assets	906	901
Oil and gas properties — full cost method ($1,438 and $1,300 were excluded from amortization at September 30, 2014 and December 31, 2013, respectively)	15,786	16,407
Less — accumulated depreciation, depletion and amortization	7,915	8,306
Total oil and gas properties, net	7,871	8,101
Other property and equipment, net	180	174
Long-term investments	26	63
Deferred taxes	0	19
Other assets	29	37
Total assets	9,068	9,321
Derivative assets	56	26
Current liabilities:
Accounts payable	65	76
Accrued liabilities	827	978
Deferred liabilities	0	90
Advances from joint owners	27	30
Asset retirement obligations	5	54
Derivative liabilities	1	62
Total current liabilities	925	1,290
Other liabilities	40	38
Derivative liabilities	0	0
Long-term debt	3,046	3,694
Asset retirement obligations	105	201
Deferred taxes	1,427	1,142
Total long-term liabilities	4,618	5,075
Commitments and contingencies (Note 12)	0	0
Stockholders' equity:
Preferred stock ($0.01 par value, 5,000,000 shares authorized; no shares issued)	0	0
Common stock ($0.01 par value, 200,000,000 shares authorized at September 30, 2014 and December 31, 2013; 137,469,404 and 136,682,631 shares issued at September 30, 2014 and December 31, 2013, respectively)	1	1
Additional paid-in capital	1,564	1,539
Treasury stock (at cost, 256,984 and 460,914 shares at September 30, 2014 and December 31, 2013, respectively)	(9)	(13)
Accumulated other comprehensive gain (loss)	2	2
Retained earnings	1,967	1,427
Total stockholders' equity	3,525	2,956
Total liabilities and stockholders' equity	$ 9,068	$ 9,321