CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 47,772	$ 167,788
Restricted cash	1,246	748
Trade accounts receivable	102,384	68,342
Inventories	198,326	219,437
Prepaid and other current assets	53,380	75,437
Total current assets	403,108	531,752
Property and equipment
Property, plant and equipment	499,867	220,863
Proved oil and gas properties, at cost, successful efforts method of accounting	1,122	1,122
Total property and equipment	500,989	221,985
Less accumulated depreciation and depletion	(49,727)	(26,845)
Property, plant and equipment, net	451,262	195,140
Long-term assets
Investment in Laramie Energy, LLC	108,823	76,203
Intangible assets, net	29,912	34,368
Goodwill	105,732	41,327
Other long-term assets	46,596	13,471
Total assets	1,145,433	892,261
Current liabilities
Current maturities of long-term debt	20,286	11,000
Obligations under inventory financing agreements	225,135	237,709
Accounts payable	65,190	27,428
Current portion of contingent consideration	0	19,880
Other accrued liabilities	72,154	69,023
Total current liabilities	382,765	365,040
Long-term liabilities
Long-term debt, net of current maturities	350,110	154,212
Common stock warrants	5,134	8,096
Contingent consideration	0	7,701
Long-term capital lease obligations	1,780	1,175
Other liabilities	36,735	15,426
Total liabilities	776,524	551,650
Commitments and contingencies
Stockholders’ equity
Preferred stock, $0.01 par value: 3,000,000 shares authorized, none issued	0	0
Common stock, $0.01 par value; 500,000,000 shares authorized at December 31, 2016 and December 31, 2015, 45,533,913 shares and 41,009,924 shares issued at December 31, 2016 and December 31, 2015, respectively	455	410
Additional paid-in capital	587,057	515,165
Accumulated deficit	(220,799)	(174,964)
Accumulated other comprehensive income	2,196	0
Total stockholders’ equity	368,909	340,611
Total liabilities and stockholders’ equity	$ 1,145,433	$ 892,261