Consolidated Balance Sheet - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 469	$ 555
Short-term investments	25	25
Accounts receivable, net	243	232
Inventories	25	16
Derivative assets	52	75
Other current assets	51	46
Total current assets	865	949
Oil and gas properties, net — full cost method ($1,240 and $1,238 were excluded from amortization at March 31, 2017 and December 31, 2016, respectively)	3,294	3,140
Other property and equipment, net	166	167
Derivative assets	2	0
Long-term investments	22	19
Restricted cash	28	25
Other assets	11	12
Total assets	4,388	4,312
Current liabilities:
Accounts payable	40	33
Accrued liabilities	434	498
Advances from joint owners	61	54
Asset retirement obligations	2	2
Derivative liabilities	(46)	(97)
Total current liabilities	583	684
Other liabilities	65	63
Derivative liabilities	0	(3)
Long-term debt	2,432	2,431
Asset retirement obligations	160	154
Deferred taxes	48	39
Total long-term liabilities	2,705	2,690
Stockholders' equity:
Preferred stock ($0.01 par value, 5,000,000 shares authorized; no shares issued)	0	0
Common stock ($0.01 par value, 300,000,000 shares authorized at March 31, 2017 and December 31, 2016; 200,187,352 and 200,150,392 shares issued at March 31, 2017 and December 31, 2016, respectively)	2	2
Additional paid-in capital	3,263	3,247
Treasury stock (at cost, 1,220,606 and 1,195,809 shares at March 31, 2017 and December 31, 2016, respectively)	(45)	(44)
Accumulated other comprehensive income (loss)	(2)	(2)
Retained earnings (deficit)	(2,118)	(2,265)
Total stockholders' equity	1,100	938
Total liabilities and stockholders' equity	$ 4,388	$ 4,312