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DERIVATIVE FINANCIAL INSTRUMENTS (Details 3) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015 item	Dec. 31, 2014
Fair value of net derivatives
Derivative Assets, current	$ 3,968us-gaap_DerivativeInstrumentsAndHedges	$ 4,005us-gaap_DerivativeInstrumentsAndHedges
Derivative's Credit risk
Number of counterparties to the commodity derivative contracts	1
Commodity derivatives \| Not designated as hedging instruments
Fair value of net derivatives
Derivative Assets	3,968	4,005
Commodity derivatives \| Not designated as hedging instruments \| Natural Gas
Fair value of net derivatives
Derivative Assets, current	3,766	3,611
Commodity derivatives \| Not designated as hedging instruments \| Oil
Fair value of net derivatives
Derivative Assets, current	$ 202	$ 394

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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