# Relationship history for MSHA mine 1519702

Current hierarchy: **Keith E  Thacker → TORCHLIGHT ADVANCED FUELS INC → Straight Creek  Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Headwaters Inc → Straight Creek  Mine; 2007-12-07 to 2012-06-28; source msha-controller-operator-history
- **controller_controls_mine:** Emily  Rabnott → Straight Creek  Mine; 2011-09-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Catalyst Resources LLC → Straight Creek  Mine; 2012-06-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rockhampton Energy LLC → Straight Creek  Mine; 2013-04-04 to 2019-12-08; source msha-controller-operator-history
- **controller_controls_operator:** Emily  Rabnott → Rockhampton Energy LLC; 2013-04-04 to 2019-12-08; source msha-controller-operator-history
- **controller_controls_mine:** Keith E  Thacker → Straight Creek  Mine; 2018-12-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** KENTUCKY GEM INC. → Straight Creek  Mine; 2019-12-09 to 2021-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Stump et al → Straight Creek  Mine; 2019-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Stump et al → KENTUCKY GEM INC.; 2019-12-09 to 2021-02-09; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Runyon et al → KENTUCKY GEM INC.; 2019-12-09 to 2021-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Covol Fuels No.3 LLC → Straight Creek  Mine; 2021-02-10 to 2025-11-04; source msha-controller-operator-history
- **controller_controls_operator:** Headwaters Inc → Covol Fuels No.3 LLC; 2021-02-10 to 2012-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Catalyst Resources LLC → Covol Fuels No.3 LLC; 2021-02-10 to 2025-11-04; source msha-controller-operator-history
- **operator_operates_mine:** TORCHLIGHT ADVANCED FUELS INC → Straight Creek  Mine; 2025-11-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith E  Thacker → TORCHLIGHT ADVANCED FUELS INC; 2025-11-05 to current/open; source msha-controller-operator-history