Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 266	$ 305
Accounts receivable:
Revenue	982	1,082
Joint interest billings and other	569	778
Commodity derivative asset		408
Prepaid expense, deposits and other current assets	190	213
Total current assets	2,007	2,786
Oil and gas properties, full cost method of accounting:
Proved, net	20,076	25,032
Unevaluated	3,137	3,194
Other property and equipment, net	193	238
Total property and equipment, net	23,406	28,464
Investments in affiliates (note 5)	744	1,025
Other long-term assets	193	433
Total assets	26,350	32,708
Current liabilities:
Accounts payable and accrued liabilities	5,724	5,621
Firm transportation contract obligations (note 12)	425	436
Commodity derivative liability	306
Notes payable (note 6)	4,000
Total current liabilities	10,455	6,057
Non-current liabilities:
Firm transportation contract obligations (note 12)	207	416
Commodity derivative liability	102
Asset retirement obligations (note 3)	3,170	3,095
Notes payable (note 6)		3,500
Total non-current liabilities	3,479	7,011
Commitments (note 12)
Stockholders' equity:
Preferred stock, $0.01 par value; authorized 1,000,000 shares, no shares issued and outstanding at June 30, 2016 and December 31, 2015
Common stock, $0.01 par value; authorized 200,000,000 shares, 110,638,849 and 107,655,916 shares issued and outstanding at June 30, 2016 and December 31, 2015, respectively	1,107	1,077
Additional paid-in capital	55,027	54,394
Accumulated deficit	(45,575)	(38,130)
Total Carbon stockholders' equity	10,559	17,341
Non-controlling interests	1,857	2,299
Total stockholders' equity	12,416	19,640
Total liabilities and stockholders' equity	$ 26,350	$ 32,708