# Relationship history for MSHA mine 4003353

Current hierarchy: **John Mitch Potter → Coal-Mac MET, LLC → SHM-14**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Kopper Glo Mining, LLC → SHM-14; 2009-06-02 to 2014-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → SHM-14; 2009-06-02 to 2018-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Kopper Glo Mining, LLC; 2009-06-02 to 2014-01-20; source msha-controller-operator-history
- **controller_controls_mine:** Corsa Coal Corporation → SHM-14; 2010-12-08 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → SHM-14; 2013-03-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Wilson Creek Energy, LLC → SHM-14; 2014-01-21 to 2019-03-07; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Wilson Creek Energy, LLC; 2014-01-21 to 2019-03-07; source msha-controller-operator-history
- **controller_controls_operator:** Corsa Coal Corporation → Wilson Creek Energy, LLC; 2014-01-21 to 2013-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Industrial Minerals Group LLC → SHM-14; 2018-12-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Industrial Minerals Group LLC → Kopper Glo Mining, LLC; 2018-12-31 to 2014-01-20; source msha-controller-operator-history
- **operator_operates_mine:** Kopper Glo Mining, LLC → SHM-14; 2019-03-08 to 2021-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Kopper Glo Mining, LLC; 2019-03-08 to 2018-12-30; source msha-controller-operator-history
- **controller_controls_operator:** Industrial Minerals Group LLC → Kopper Glo Mining, LLC; 2019-03-08 to 2021-10-19; source msha-controller-operator-history
- **controller_controls_mine:** John T  Quintrell → SHM-14; 2019-09-16 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Civil, LLC → SHM-14; 2021-10-20 to 2025-06-11; source msha-controller-operator-history
- **controller_controls_operator:** John T  Quintrell → Civil, LLC; 2021-10-20 to 2025-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Coal-Mac MET, LLC → SHM-14; 2025-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** John Mitch Potter → SHM-14; 2025-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John Mitch Potter → Coal-Mac MET, LLC; 2025-06-12 to current/open; source msha-controller-operator-history