DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES (Details) (Derivatives Designated as Hedging Instruments)	Jun. 30, 2013 MMcf
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 1
Derivative disclosures
Volume	8.9
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 1 | Minimum
Derivative disclosures
Collar Ceiling Price	6.18
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 1 | Maximum
Derivative disclosures
Collar Ceiling Price	6.23
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 1 | Weighted Average
Derivative disclosures
Collar Floor Price	5.15
Collar Ceiling Price	6.20
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 2
Derivative disclosures
Volume	109.0
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 2 | Minimum
Derivative disclosures
Collar Floor Price	3.09
Collar Ceiling Price	3.98
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 2 | Maximum
Derivative disclosures
Collar Floor Price	4.37
Collar Ceiling Price	5.02
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2013 Tranche 2 | Weighted Average
Derivative disclosures
Collar Floor Price	3.63
Collar Ceiling Price	4.27
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2014 Tranche 3
Derivative disclosures
Volume	53.3
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2014 Tranche 3 | Minimum
Derivative disclosures
Collar Floor Price	3.60
Collar Ceiling Price	4.55
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2014 Tranche 3 | Maximum
Derivative disclosures
Collar Floor Price	3.96
Collar Ceiling Price	4.59
Natural Gas Collars with contract period of Jul. 2013 - Dec. 2014 Tranche 3 | Weighted Average
Derivative disclosures
Collar Floor Price	3.78
Collar Ceiling Price	4.57
Natural Gas Collars with contract period of Jan. 2014 - Dec. 2014 Tranche 4
Derivative disclosures
Volume	124.1
Natural Gas Collars with contract period of Jan. 2014 - Dec. 2014 Tranche 4 | Minimum
Derivative disclosures
Collar Floor Price	3.86
Collar Ceiling Price	4.63
Natural Gas Collars with contract period of Jan. 2014 - Dec. 2014 Tranche 4 | Maximum
Derivative disclosures
Collar Floor Price	4.37
Collar Ceiling Price	4.80
Natural Gas Collars with contract period of Jan. 2014 - Dec. 2014 Tranche 4 | Weighted Average
Derivative disclosures
Collar Floor Price	4.19
Collar Ceiling Price	4.70
Crude Oil Swaps with contract period of Jul. 2013 - Dec. 2013 Tranche 1
Derivative disclosures
Volume	552
Crude Oil Swaps with contract period of Apr. 2013 - Dec. 2013 Tranche 1
Derivative disclosures
Swaps (Weighted Average)	101.90