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Commitments - Narrative (Details) $ in Millions | 1 Months Ended | 3 Months Ended
--- | --- | ---
Nov. 30, 2011 USD ($) | Mar. 31, 2016 USD ($) a well Crew
Long-term Purchase Commitment [Line Items] |  |
Gathering Fee Escalation Rate |  | 15.00%
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Productive Oil Wells, Number of Wells, Gross | well |  | 69
Development Wells Drilled, Net Productive | well |  | 106
Number Of Gross Acres | a |  | 45,400
Number Of Net Acres | a |  | 29,000
Maximum Amount Recoverable By Trust Under Lien | $ | $ 263 | $ 27
Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] | Wells, Initial Number of Wells [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Development Wells Drilled, Net Productive | well |  | 118
Minimum [Member] | Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Percentage Of Proceeds From Royalty Interest Conveyed To Trust |  | 50.00%
Maximum [Member] | Noncontrolling Interest, Chesapeake Granite Wash Trust [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Percentage Of Proceeds From Royalty Interest Conveyed To Trust |  | 90.00%
Drilling Rig Leases [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Contractual Obligation | $ |  | $ 218
Drilling Rig Leases [Member] | Minimum [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Lease Term |  | 3 months
Drilling Rig Leases [Member] | Maximum [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Lease Term |  | 3 years
Pressure Pumping Leases [Member] | Seven Seven Energy Inc. [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Percent of Total |  | 50.00%
Operating Leases, Future Minimum Payments Due | $ |  | $ 161
Pressure Pumping Leases [Member] | Seven Seven Energy Inc. [Member] | Pressure Pumping Crew Agreement Through June 30, 2016 [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Number of Crews | Crew |  | 5
Pressure Pumping Leases [Member] | Seven Seven Energy Inc. [Member] | Pressure Pumping Crew Agreement Through June 30, 2017 [Member] |  |
Long-term Purchase Commitment [Line Items] |  |
Number of Crews | Crew |  | 3

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- Definition The number of productive developmental wells drilled in the geographic area. A productive well is a well that is not a dry well. The number of wells drilled refers to the number of wells (holes) completed at any time during the fiscal years, regardless when drilling was initiated. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1205 -Paragraph (a) -Subparagraph (2) + Details
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