Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
CURRENT ASSETS
Cash and cash equivalents	$ 12	$ 12
Trade receivables, net	232	200
Inventories	58	58
Other current assets	123	168
Total current assets	425	438
PROPERTY, PLANT AND EQUIPMENT	20,915	20,996
Accumulated depreciation, depletion and amortization	(15,030)	(14,684)
Total property, plant, equipment	5,885	6,312
OTHER ASSETS	44	303
TOTAL ASSETS	6,354	7,053
CURRENT LIABILITIES
Current maturities of long-term debt	100	100
Accounts payable	219	257
Accrued liabilities	407	222
Current income taxes		26
Total current liabilities	726	605
LONG-TERM DEBT - PRINCIPAL AMOUNT	5,168	6,043
DEFERRED GAIN AND ISSUANCE COSTS, NET	397	491
OTHER LONG-TERM LIABILITIES	620	830
EQUITY
Preferred stock (20 million shares authorized at $0.01 par value) no shares outstanding at December 31, 2016 or 2015
Common stock (200 million shares authorized at $0.01 par value) outstanding shares (2016 - 42,542,637 shares and 2015 - 38,818,048 shares)
Additional paid-in capital	4,861	4,782
Accumulated deficit	(5,404)	(5,683)
Accumulated other comprehensive loss	(14)	(15)
Total equity	(557)	(916)
TOTAL LIABILITIES AND EQUITY	$ 6,354	$ 7,053