CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 7,798	$ 17,864
Accounts receivable, net of allowance for doubtful accounts	70,716	66,038
Derivative assets	4,131	34,932
Income taxes receivable	1,236	2,471
Other current assets	4,458	5,125
Total current assets	88,339	126,430
Property and equipment, net (full cost method)	1,120,425	927,994
Derivative assets	2,750	10,100
Deferred income taxes	0	1,949
Other assets	6,724	2,481
Total assets	1,218,238	1,068,954
Current liabilities
Accounts payable and accrued liabilities	105,824	103,700
Derivative liabilities	23,450	991
Total current liabilities	129,274	104,691
Other liabilities	8,382	5,533
Deferred income taxes	1,424	0
Derivative liabilities	3,385	0
Long-term debt, net	555,028	511,375
Commitments and contingencies (Note 14)
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; 15,135,598 and 15,080,594 shares issued as of December 31, 2019 and December 31, 2018, respectively	151	151
Paid-in capital	200,666	197,630
Retained earnings	319,987	249,492
Accumulated other comprehensive income (loss)	(59)	82
Total shareholders’ equity	520,745	447,355
Total liabilities and shareholders’ equity	$ 1,218,238	$ 1,068,954