Consolidated Balance Sheets (Audited) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 180,675	$ 244,100
Accounts receivable, net	197,598	143,392
Fair value of derivatives	14,338	8,791
Prepaid expenses and other current assets	8,613	3,542
Total current assets	401,224	399,825
Properties and equipment, net	3,933,467	4,002,994
Assets held-for-sale, net	40,084	5,272
Fair value of derivatives	0	2,386
Goodwill	0	62,041
Other assets	45,116	13,324
Total Assets	4,419,891	4,485,842
Current liabilities:
Accounts payable	150,067	66,322
Production tax liability	37,654	24,767
Fair value of derivatives	79,302	53,595
Funds held for distribution	95,811	71,339
Accrued interest payable	11,815	15,930
Other accrued expenses	42,987	38,625
Total current liabilities	417,636	270,578
Long-term debt	1,151,932	1,043,954
Deferred income taxes	191,992	400,867
Asset retirement obligations	71,006	82,612
Fair value of derivatives	22,343	27,595
Other liabilities	57,333	37,482
Total liabilities	1,912,242	1,863,088
Shareholders' Equity:
Common shares - par value $0.01 per share, 150,000,000 authorized, 65,955,080 and 65,704,568 issued as of December 31, 2017 and 2016, respectively	659	657
Additional paid-in capital	2,503,294	2,489,557
Retained earnings	6,704	134,208
Treasury shares - at cost, 55,927 and 28,763 as of December 31, 2017 and 2016, respectively	(3,008)	(1,668)
Total stockholders' equity	2,507,649	2,622,754
Total Liabilities and Stockholders' Equity	$ 4,419,891	$ 4,485,842