# Relationship history for MSHA mine 4603263

Current hierarchy: **Timothy L  McCoy → Mid-Atlantic Resources Corp → East Gulf Plant & Refuse**

- 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

- **operator_operates_mine:** Westmoreland Coal Company → East Gulf Plant & Refuse; 1950-01-01 to 1982-04-08; source msha-controller-operator-history
- **controller_controls_mine:** Westmoreland Coal Company → East Gulf Plant & Refuse; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Westmoreland Coal Company → Westmoreland Coal Company; 1950-01-01 to 1982-04-08; source msha-controller-operator-history
- **controller_controls_mine:** S Austin  Caperton III → East Gulf Plant & Refuse; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Henry Paul  Kizer et al → East Gulf Plant & Refuse; 1977-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Slab Fork Coal Company → East Gulf Plant & Refuse; 1982-04-09 to 1983-04-20; source msha-controller-operator-history
- **controller_controls_operator:** S Austin  Caperton III → Slab Fork Coal Company; 1982-04-09 to 1983-04-20; source msha-controller-operator-history
- **operator_operates_mine:** Maben Energy Corp → East Gulf Plant & Refuse; 1983-04-21 to 1997-03-09; source msha-controller-operator-history
- **controller_controls_operator:** Henry Paul  Kizer et al → Maben Energy Corp; 1983-04-21 to 1997-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Mid-Atlantic Resources Corp → East Gulf Plant & Refuse; 1997-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Timothy L  McCoy → East Gulf Plant & Refuse; 1997-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy L  McCoy → Mid-Atlantic Resources Corp; 1997-03-10 to current/open; source msha-controller-operator-history