(3) Investments in Piceance Energy: Summary of Balance Sheet of Equity Investment (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable	$ 93,625	$ 17,730
Total current assets	567,632	59,926
Office furniture and equipment	1,853
Total	116,752	6,219
Less accumulated depreciation, depletion, and amortization	(1,728)	(373)
Total property and equipment, net	115,024	5,846
Total assets	828,114	189,582
Total current liabilities	431,368	69,977
Total liabilities	552,946	88,825
Accumulated deficit	(37,489)	(8,839)
Piceance Energy
Cash and equivalents	23
Accounts receivable	3,486
Prepaids and other assets	1,323
Total current assets	4,832
Natural gas and oil property, successful efforts method of accounting	549,327
Other real estate and land	14,314
Office furniture and equipment	3,110
Total	566,751
Less accumulated depreciation, depletion, and amortization	(107,216)
Total property and equipment, net	459,535
Deferred issue costs and other assets, net	953
Total assets	465,320
Accounts payable and accrued liabilities	5,023
Natural gas and oil sales payable	11,041
Derivative liabilities	542
Total current liabilities	16,606
Note payable	90,000
Asset retirement obligations	2,959
Liabilities, Noncurrent	92,959
Total liabilities	109,565
Members' equity	365,046
Accumulated deficit	(9,291)
Total Members' Equity	355,755
Total liabilities and members' equity	465,320
Piceance Energy | Parent Company
Cash and equivalents	8
Accounts receivable	1,162
Prepaids and other assets	441
Total current assets	1,611
Natural gas and oil property, successful efforts method of accounting	183,146
Other real estate and land	4,772
Office furniture and equipment	1,037
Total	188,955
Less accumulated depreciation, depletion, and amortization	(35,746)
Total property and equipment, net	153,209
Deferred issue costs and other assets, net	318
Total assets	155,138
Accounts payable and accrued liabilities	1,675
Natural gas and oil sales payable	3,681
Derivative liabilities	181
Total current liabilities	5,537
Note payable	30,006
Asset retirement obligations	987
Liabilities, Noncurrent	30,993
Total liabilities	36,530
Members' equity	121,706
Accumulated deficit	(3,098)
Total Members' Equity	118,608
Total liabilities and members' equity	$ 155,138