CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating revenues
Financial derivatives	$ (81)	$ 84
Total operating revenues	820	1,324
Operating expenses
Oil and natural gas purchases	0	3
Transportation costs	93	100
Lease operating expense	138	158
General and administrative	123	89
Depreciation, depletion and amortization	418	507
Gain on sale of assets	0	(3)
Impairment charges	458	1,103
Exploration and other expense	7	5
Taxes, other than income taxes	56	77
Total operating expenses	1,293	2,039
Operating loss	(473)	(715)
Other income	4	4
Gain on extinguishment/modification of debt	10	73
Interest expense	(419)	(365)
Reorganization items, net	(65)	0
Loss before income taxes	(943)	(1,003)
Income tax expense	0	0
Net loss	(943)	(1,003)
Oil
Operating revenues
Operating revenues	790	1,045
Natural gas
Operating revenues
Operating revenues	49	75
NGLs
Operating revenues
Operating revenues	$ 62	$ 120