DERIVATIVE INSTRUMENTS (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended									2 Months Ended
	Jun. 30, 2013	Dec. 31, 2013 NYMEX HH Swap - Natural Gas Calendar 2014	Dec. 31, 2013 NYMEX HH Swap - Natural Gas Calendar 2015	Dec. 31, 2013 NYMEX WTI Swap - Oil Calendar 2014	Dec. 31, 2013 NYMEX HH Swaption Natural Gas Calendar 2016 Expiration December 2014	Dec. 31, 2013 NYMEX WTI Swaption - Oil Calendar 2015 Expiration December 2014 - Weighted Average Hedged Price One Hundred Dollars	Dec. 31, 2013 NYMEX WTI Swaption - Oil Calendar 2015 Expiration December 2014 - Weighted Average Hedged Price One Hundred and Six Dollars	Dec. 31, 2013 NYMEX WTI Swaption - Oil Calendar 2015 Expiration December 2014 - Weighted Average Hedged Price Ninety Nine Dollars and Seventy Five Cents	Dec. 31, 2013 NYMEX WTI Swaption - Oil Calendar 2015 Expiration 2014 - Weighted Average Hedged Price Ninety Nine Dollars	Dec. 31, 2013 NYMEX WTI Put Option - Oil Monthly Calendar 2014 Monthly Expiration 2014	Feb. 19, 2014 NYMEX HH Collar Natural Gas January 2015 to March 2015 Subsequent Event
Commodity derivatives:
Notional amount (Bbtu or Barrels per day)		70	20	3,500	10	3,000	1,000	1,000	1,000	2,000	20
Weighted Average Hedged Price per MMBtu		4.38	4.20		4.18
Weighted Average Hedged Price per Bbl				95.34		100.00	106.00	99.75	99.00	70.00
Hedged Price per MMBtu, Floor											4.50	[1]
Hedged Price per MMBtu, Ceiling											5.31	[1]
Interest rate derivatives:
Proceeds from voluntary termination of interest rate swaps	$ 11.4

[1] Represents the hedged floor and ceiling price per MMBtu.