CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 2,960	$ 1,703
Accounts receivable-trade	16,308us-gaap_AccountsReceivableNetCurrent	20,025us-gaap_AccountsReceivableNetCurrent
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	146us-gaap_RestrictedInvestmentsCurrent	142us-gaap_RestrictedInvestmentsCurrent
Derivative financial instruments	3,968us-gaap_DerivativeInstrumentsAndHedges	4,005us-gaap_DerivativeInstrumentsAndHedges
Other current assets	2,902us-gaap_OtherAssetsCurrent	1,245us-gaap_OtherAssetsCurrent
Total current assets	26,284us-gaap_AssetsCurrent	27,120us-gaap_AssetsCurrent
Other Assets
Oil and gas properties-at cost, based on full cost method of accounting, net of accumulated depreciation, depletion and amortization and impairment (includes unproved properties excluded from amortization of $207,799 and $204,626 as of March 31, 2015 and December 31, 2014)	657,292	753,496
Property and equipment-at cost, net	19,512us-gaap_PropertyPlantAndEquipmentNet	19,622us-gaap_PropertyPlantAndEquipmentNet
Restricted investments in U.S. Treasury Bonds-available for sale, at fair value	1,313us-gaap_RestrictedInvestmentsNoncurrent	1,280us-gaap_RestrictedInvestmentsNoncurrent
Deferred debt offering costs, net	13,428	13,942
Other assets	3,001us-gaap_OtherAssetsNoncurrent	3,220us-gaap_OtherAssetsNoncurrent
Total other assets	694,546us-gaap_AssetsNoncurrent	791,560us-gaap_AssetsNoncurrent
Total assets	720,830us-gaap_Assets	818,680us-gaap_Assets
Current Liabilities
Current maturities of debentures and other long-term liabilities	381wres_LongTermDebtAndLiabilitiesCurrent	381wres_LongTermDebtAndLiabilitiesCurrent
Accounts payable and accruals	41,336	57,389
Total current liabilities	41,717us-gaap_LiabilitiesCurrent	57,770us-gaap_LiabilitiesCurrent
Long-Term Liabilities
Revolving loan credit facility	153,748us-gaap_LongTermLineOfCredit	134,749us-gaap_LongTermLineOfCredit
Other long-term liabilities, less current portion	36,633us-gaap_OtherLiabilitiesNoncurrent	36,084us-gaap_OtherLiabilitiesNoncurrent
Senior notes and debentures, less current portion and discount	297,656	297,525
Total long-term liabilities	488,037us-gaap_LiabilitiesNoncurrent	468,358us-gaap_LiabilitiesNoncurrent
Commitments and Contingencies
Stockholders' Equity
8% convertible preferred stock-$.0001 par value; authorized, 10,000,000 shares; issued and outstanding 10,703 shares in 2015 and 2014 (aggregate liquidation preference $128 in 2015 and 2014)	128us-gaap_PreferredStockValue	128us-gaap_PreferredStockValue
Common stock - $.0001 par value; authorized, 200,000,000 shares; issued 81,135,849 shares in 2015 and 80,754,225 shares in 2014	8us-gaap_CommonStockValue	8us-gaap_CommonStockValue
Additional paid-in-capital	513,627us-gaap_AdditionalPaidInCapital	512,843us-gaap_AdditionalPaidInCapital
Accumulated deficit	(322,914)	(220,643)
Accumulated other comprehensive income, net of applicable income taxes of $134 in 2015 and $141 in 2014	227	216
Total stockholders' equity	191,076us-gaap_StockholdersEquity	292,552us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	$ 720,830	$ 818,680

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Balance Type:	credit
Period Type:	instant