Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details)

v2.4.0.8
Income Taxes Income Taxes (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Disclosure [Abstract]      
Net operating loss carryforward $ 1,462 $ 1,513 $ 40,880
FASB ASC 718 compensation expense 634 762 520
Investment in pass through entities 0 0 78
AMT credit 7,968 1,643 1,000
Non-oil and gas property basis difference 0 0 103
Charitable contributions carryover 25 5 3
Unrealized loss on hedging activities 8,540 3,836 0
Foreign tax credit carryforwards 2,074 2,074 0
State net operating loss carryover 4,408 4,315 6,410
Total deferred tax assets 25,111 14,148 48,994
Valuation allowance for deferred tax assets (4,743) (4,629) (12,347)
Deferred tax assets, net of valuation allowance 20,368 9,519 36,647
Oil and gas property basis difference 72,173 15,049 35,637
Investment in pass through entities 8,799 3,618 0
Non-oil and gas property basis difference 249 227 0
Investment in nonconsolidated affiliates 46,495 9,232 0
Unrealized gain on hedging activities 0 0 10
Total deferred tax liabilities 127,716 28,126 35,647
Net deferred tax asset (liability) $ (107,348) $ (18,607) $ 1,000