Risk Management Activities (Details)	9 Months Ended
Sep. 30, 2016 USD ($) MMBTU $ / bbl $ / MMBTU bbl	Dec. 31, 2015 USD ($)
Derivatives, Fair Value [Line Items]
Derivative Liability \| $	$ 0
Derivative Assets, Current \| $	2,185,000	$ 0
Derivative Collateral [Abstract]
Collateral Held on Derivative \| $	0	0
Collateral Had on Derivative \| $	$ 0	$ 0
Crude Oil Price Swap Contracts - May through June (closed)[Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) \| bbl	128,000
Derivative, Swap Type, Average Fixed Price \| $ / bbl	42.56
Crude Oil Price Swap Contracts - April (closed)[Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) \| bbl	90,000
Derivative, Swap Type, Average Fixed Price \| $ / bbl	42.30
Crude Oil Collar Contracts - September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) \| bbl	70,000
Derivative, Average Cap Price \| $ / bbl	54.25
Derivative, Average Floor Price \| $ / bbl	45.00
Crude Oil Collar Contracts - October through December [Member]
Derivatives, Fair Value [Line Items]
Volume (Bbld) \| bbl	70,000
Derivative, Average Cap Price \| $ / bbl	54.25
Derivative, Average Floor Price \| $ / bbl	45.00
Natural Gas Price Swap Contracts - March through August (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	60,000
Derivative, Swap Type, Average Fixed Price \| $ / MMBTU	2.49
Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	30,000
Derivative, Swap Type, Average Fixed Price \| $ / MMBTU	3.10
Call Option [Member] \| Natural Gas Option Contracts September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	56,250
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	3.46
Call Option [Member] \| Natural Gas Option Contracts - October (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	106,250
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	3.48
Call Option [Member] \| Natural Gas Option Contracts November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	106,250
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	3.48
Call Option [Member] \| Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	168,750
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	3.41
Call Option [Member] \| Natural Gas Derivative Contracts Year Three - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	75,000
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	3.30
Put Option [Member] \| Natural Gas Option Contracts September (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	0
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	0
Put Option [Member] \| Natural Gas Option Contracts - October (closed) [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	0
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	0
Put Option [Member] \| Natural Gas Option Contracts November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	0
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	0
Put Option [Member] \| Natural Gas Derivative Contracts Year Two - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	135,000
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	2.90
Put Option [Member] \| Natural Gas Derivative Contracts Year Three - March through November [Member]
Derivatives, Fair Value [Line Items]
Volume (MMBtud) \| MMBTU	60,000
Derivative, Average Price Risk Option Strike Price \| $ / MMBTU	2.90

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, expected to be settled within one year or normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

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The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

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The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

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Nominal energy measure used to calculate payments on a derivative instrument.

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Average fixed price related to the group of price risk swap derivatives.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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