# Relationship history for MSHA mine 1518765

Current hierarchy: **F D  Justice II; Greg  Henzman → Contract Highwall Mining, LLC → CHM 1**

- 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

- **controller_controls_mine:** Greg  Henzman  et al → CHM 1; 2004-03-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Black Fuel Energy LLC → CHM 1; 2004-05-19 to 2011-11-03; source msha-controller-operator-history
- **controller_controls_mine:** Keith D  Dyke → CHM 1; 2004-05-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith D  Dyke → Black Fuel Energy LLC; 2004-05-19 to 2011-11-03; source msha-controller-operator-history
- **controller_controls_mine:** Quintana Capital Group GP Ltd et al → CHM 1; 2009-06-02 to 2018-12-30; source msha-controller-operator-history
- **operator_operates_mine:** Black Fuel Energy LLC → CHM 1; 2011-11-04 to 2012-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Keith D  Dyke → CHM 1; 2011-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith D  Dyke → Black Fuel Energy LLC; 2011-11-04 to 2012-09-20; source msha-controller-operator-history
- **operator_operates_mine:** Kopper Glo Mining, LLC → CHM 1; 2012-09-21 to 2017-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Quintana Capital Group GP Ltd et al → Kopper Glo Mining, LLC; 2012-09-21 to 2017-06-28; source msha-controller-operator-history
- **operator_operates_mine:** Contract Highwall Mining, LLC → CHM 1; 2017-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Greg  Henzman  et al → Contract Highwall Mining, LLC; 2017-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** F D  Justice II  et al → Contract Highwall Mining, LLC; 2017-06-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Industrial Minerals Group LLC → CHM 1; 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 2017-06-28; source msha-controller-operator-history