CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 10,105	$ 6,761
Accounts receivable, net of allowance for doubtful accounts	42,807	29,095
Derivative assets	2,672	0
Other current assets	3,100	3,028
Total current assets	58,684	38,884
Property and equipment, net (full cost method)	272,461	247,473
Derivative assets	584	0
Other assets	5,423	5,329
Total assets	337,152	291,686
Current liabilities
Accounts payable and accrued liabilities	59,263	49,697
Derivative liabilities	0	12,932
Total current liabilities	59,263	62,629
Other liabilities	4,103	4,072
Derivative liabilities	90	14,437
Long-term debt	37,000	25,000
Commitments and contingencies (Note 12)
Shareholders’ equity:
Preferred stock of $0.01 par value – 5,000,000 shares authorized; none issued	0	0
Common stock of $0.01 par value – 45,000,000 shares authorized; 14,992,018 shares issued as of June 30, 2017 and December 31, 2016	150	150
Paid-in capital	192,359	190,621
Retained earnings (accumulated deficit)	44,114	(5,296)
Accumulated other comprehensive income	73	73
Total shareholders’ equity	236,696	185,548
Total liabilities and shareholders’ equity	$ 337,152	$ 291,686