CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 11,387	$ 17,864
Accounts receivable, net of allowance for doubtful accounts	62,300	66,038
Derivative assets	18,214	34,932
Income taxes receivable	3,707	2,471
Other current assets	5,570	5,125
Total current assets	101,178	126,430
Property and equipment, net (full cost method)	1,099,144	927,994
Derivative assets	4,311	10,100
Deferred income taxes	0	1,949
Other assets	7,147	2,481
Total assets	1,211,780	1,068,954
Current liabilities
Accounts payable and accrued liabilities	118,975	103,700
Derivative liabilities	4,308	991
Total current liabilities	123,283	104,691
Other liabilities	8,359	5,533
Deferred income taxes	1,023	0
Derivative liabilities	12	0
Long-term debt, net	562,445	511,375
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; 15,123,128 and 15,080,594 shares issued as of September 30, 2019 and December 31, 2018, respectively	151	151
Paid-in capital	199,739	197,630
Retained earnings	316,688	249,492
Accumulated other comprehensive income	80	82
Total shareholders’ equity	516,658	447,355
Total liabilities and shareholders’ equity	$ 1,211,780	$ 1,068,954