XML 46 R36.htm IDEA: XBRL DOCUMENT v3.2.0.727
Derivative Financial Instruments (Details) - Jun. 30, 2015
$ in Thousands
USD ($)
MMBTU
gal
bbl
USD ($)
MMBTU
gal
bbl
Commodity contracts | Derivative instruments not designated as hedging instruments    
Derivative financial instruments    
Notional quantity of Crude Oil contracts (in Bbl) | bbl 293,800 293,800
Notional quantity of Natural Gas contracts (in MMBtu) | MMBTU 1,311,126 1,311,126
Notional quantity of NGL contracts (in Gal) | gal 111,236,914 111,236,914
Embedded derivatives in commodity contracts | Embedded derivative in gas processing and purchase contract    
Derivative financial instruments    
Notional amount for embedded derivative in commodity contract (in Dth per day) 9,000 9,000
Term of producer's option to renew gas purchase agreement   5 years
Inception value deemed to have settled $ 2,600  
Fair value of commodity contract (39,101) $ (39,101)
Inception value for period from July 1, 2015 to December 31, 2022 (50,928) (50,928)
Derivative asset (liability) as of June 30, 2015 11,827 11,827
Embedded derivatives in commodity contracts | Embedded derivative in electricity purchase contract    
Derivative financial instruments    
Derivative asset (liability) as of June 30, 2015 $ (100) $ (100)