Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments - Commodity derivatives (Details)

v3.7.0.1
Derivative Instruments - Commodity derivatives (Details)
Mar. 31, 2017
bbl / d
MMBTU / d
$ / bbl
$ / gal
$ / MMBTU
TCOminusNYMEX | Year ending December 31, 2017 | Basis Differential Positions  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 125,000
Weighted average index price | $ / MMBTU 0.49
NYMEXminusTCO | Year ending December 31, 2017 | Basis Differential Positions  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 125,000
Weighted average index price | $ / MMBTU 0.32
Swaps | Natural gas | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,860,000
Swaps | Natural gas | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,860,000
Swaps | Natural gas | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,860,000
Swaps | Natural gas | Year ending December 31, 2018  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 2,002,500
Swaps | Natural gas | NYMEX | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,370,000
Weighted average index price | $ / MMBTU 3.26
Swaps | Natural gas | NYMEX | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,370,000
Weighted average index price | $ / MMBTU 3.33
Swaps | Natural gas | NYMEX | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,370,000
Weighted average index price | $ / MMBTU 3.46
Swaps | Natural gas | NYMEX | Year ending December 31, 2018  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 2,002,500
Weighted average index price | $ / MMBTU 3.91
Swaps | Natural gas | NYMEX | Year ending December 31, 2019  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 2,330,000
Weighted average index price | $ / MMBTU 3.70
Swaps | Natural gas | NYMEX | Year ending December 31, 2020  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 1,417,500
Weighted average index price | $ / MMBTU 3.63
Swaps | Natural gas | NYMEX | Year Ending December 31, 2021  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 710,000
Weighted average index price | $ / MMBTU 3.31
Swaps | Natural gas | NYMEX | Year ending December 31, 2022  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 810,000
Weighted average index price | $ / MMBTU 3.18
Swaps | Natural gas | NYMEX | Year ending December 31, 2023  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 50,000
Weighted average index price | $ / MMBTU 2.83
Swaps | Natural gas | CGTLA | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 420,000
Weighted average index price | $ / MMBTU 4.13
Swaps | Natural gas | CGTLA | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 420,000
Weighted average index price | $ / MMBTU 4.20
Swaps | Natural gas | CGTLA | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 420,000
Weighted average index price | $ / MMBTU 4.37
Swaps | Natural gas | CCG | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 70,000
Weighted average index price | $ / MMBTU 4.38
Swaps | Natural gas | CCG | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 70,000
Weighted average index price | $ / MMBTU 4.45
Swaps | Natural gas | CCG | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) 70,000
Weighted average index price | $ / MMBTU 4.68
Swaps | Natural gas liquids | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 47,500
Swaps | Natural gas liquids | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 47,500
Swaps | Natural gas liquids | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 47,500
Swaps | Natural gas liquids | Year ending December 31, 2018  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 2,000
Swaps | Ethane | Mont Belvieu-Ethane | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 20,000
Weighted average index price | $ / gal 0.25
Swaps | Ethane | Mont Belvieu-Ethane | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 20,000
Weighted average index price | $ / gal 0.25
Swaps | Ethane | Mont Belvieu-Ethane | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 20,000
Weighted average index price | $ / gal 0.25
Swaps | Propane | Mont Belvieu-Propane | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 27,500
Weighted average index price | $ / gal 0.38
Swaps | Propane | Mont Belvieu-Propane | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 27,500
Weighted average index price | $ / gal 0.39
Swaps | Propane | Mont Belvieu-Propane | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 27,500
Weighted average index price | $ / gal 0.40
Swaps | Propane | Mont Belvieu-Propane | Year ending December 31, 2018  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 2,000
Weighted average index price | $ / gal 0.65
Swaps | Oil | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Swaps | Oil | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Swaps | Oil | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Swaps | Oil | WTI-NYMEX member | Three months ending June 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Weighted average index price | $ / bbl 54.75
Swaps | Oil | WTI-NYMEX member | Three months ending September 30, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Weighted average index price | $ / bbl 54.75
Swaps | Oil | WTI-NYMEX member | Three months ending December 31, 2017  
Derivative Instruments  
Notional amount (MMBtu/Bbls per day) | bbl / d 3,000
Weighted average index price | $ / bbl 54.75