v3.8.0.1

Business and Organization (Details) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2017 | Feb. 06, 2017 | Jun. 30, 2016
Operating Subsidiaries |  |  |
Business and Organization |  |  |
Ownership interest in subsidiaries (as a percent) | 100.00% |  |
Antero Midstream LLC |  |  |
Business and Organization |  |  |
Ownership interest in subsidiaries (as a percent) | 100.00% |  |
Antero Water |  |  |
Business and Organization |  |  |
Ownership interest in subsidiaries (as a percent) | 100.00% |  |
Antero Treatment |  |  |
Business and Organization |  |  |
Ownership interest in subsidiaries (as a percent) | 100.00% |  |
Stonewall Gas Gathering LLC |  |  |
Business and Organization |  |  |
Ownership percentage | 15.00% |  | 15.00%
Appalachia Joint venture |  |  |
Business and Organization |  |  |
Ownership percentage |  | 50.00% |
MarkWest | Appalachia Joint venture |  |  |
Business and Organization |  |  |
Ownership percentage | 50.00% | 50.00% |

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