CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ 462	$ (14,568)	[1]
Adjustments to reconcile net income (loss) to cash provided by (used in) operating activities:
Depreciation, depletion, amortization and accretion	3,251	3,061
Non-cash interest expense	4,951	2,221
Change in value of common stock warrants	5,022	(1,577)
Change in value of contingent consideration	4,929	(2,465)
Deferred taxes	65	(35)
Stock-based compensation	1,268	628
Unrealized (gain) loss on derivative contracts	2,406	(149)
Equity losses from Piceance Energy, LLC	1,826	221
Net changes in operating assets and liabilities:
Trade accounts receivable	47,173	20,512
Prepaid and other assets	1,298	(628)
Inventories	58,483	(36,173)
Obligations under supply and exchange agreements	(15,199)	8,971
Accounts payable and other accrued liabilities	(29,163)	12,089
Net cash provided by (used in) operating activities	86,772	(7,892)
Cash flows from investing activities
Payment for deposit for Koko'oha acquisition	(5,000)	0
Capital expenditures	(4,747)	(2,018)
Cash paid for working capital settlement on HIE purchase	0	(582)
Investment in Piceance Energy, LLC	(13,764)	0
Net cash used in investing activities	(23,511)	(2,600)
Cash flows from financing activities
Proceeds from sale of common stock	300	0
Proceeds from borrowings	7,500	81,100
Repayments of borrowings	(34,712)	(87,755)
Payment of deferred loan costs	(1,254)	0
Purchase of common stock for retirement	0	(287)
Restricted cash released	0	51
Net cash used in financing activities	(28,166)	(6,891)
Net increase (decrease) in cash and cash equivalents	35,095	(17,383)
Cash at beginning of period	89,210	38,061
Cash at end of period	124,305	20,678
Supplemental cash flow information
Cash received (paid) for interest	(415)	(1,138)
Cash received (paid) for taxes	0	509
Non-cash investing and financing activities
Accrued capital expenditures	$ 2,060	$ 667

[1] Entities with a net loss are prohibited from including potential common shares in the computation of diluted per share amounts. We have utilized the basic shares outstanding to calculate both basic and diluted loss per share for the three months ended March 31, 2014.