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Commitments and Contingencies (Details) $ in Thousands |  |  |  | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 16, 2016 USD ($) | Oct. 07, 2015 USD ($) | Apr. 05, 2011 USD ($) | Sep. 30, 2016 USD ($) | Sep. 30, 2016 USD ($) | Jun. 06, 2016 contract | Dec. 31, 2015 USD ($) | Sep. 10, 2015 lawsuit | Jul. 15, 2013 plaintiff | Mar. 31, 2013 lawsuit
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Estimated litigation claims included in reorganization items |  |  |  | $ 0 | $ 20,478 |  |  |  |  |
Estimated litigation claims included in liabilities subject to compromise |  |  |  | 24,500 | 24,500 |  |  |  |  |
Number of long-term executory contracts rejected | contract |  |  |  |  |  | 9 |  |  |  |
Number of firm transportation service agreements rejected | contract |  |  |  |  |  | 2 |  |  |  |
Net gain (loss) on rejection of contracts |  |  |  | (3,600) | (21,800) |  |  |  |  |
Contract obligations subject to compromise |  |  |  | 31,100 | 31,100 |  |  |  |  |
Shareholder Derivative Actions |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Number of shareholder derivative actions claims filed | lawsuit |  |  |  |  |  |  |  |  |  | 7
James Hart And Other Named Plaintiffs |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Number of additional plaintiffs | plaintiff |  |  |  |  |  |  |  |  | 15 |
Litigation reserve established |  |  |  |  |  |  | $ 5,100 |  |  |
Barton Gernandt Putative Class Action Lawsuit |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Number of shareholder derivative actions claims filed | lawsuit |  |  |  |  |  |  |  | 2 |  |
Pending Litigation | Shareholder Derivative Actions |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Escrow fund amount established |  | $ 38,000 |  |  |  |  |  |  |  |
Wesley West Minerals, Ltd and Longfellow Ranch Partners, LP |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Damages sought by plaintiff |  |  | $ 45,500 |  |  |  |  |  |  |
General Land Office of the State of Texas |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Damages sought by plaintiff |  |  | $ 13,000 |  |  |  |  |  |  |
Securities and Exchange Commission |  |  |  |  |  |  |  |  |  |
Commitments and Contingencies Disclosure |  |  |  |  |  |  |  |  |  |
Proof of claim filed | $ 1,200 |  |  |  |  |  |  |  |  |
Litigation reserve |  |  |  | $ 1,400 | $ 1,400 |  |  |  |  |

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