# Relationship history for MSHA mine 3605136

Current hierarchy: **Forcey Paul G → Bull Run Coal Company → Hainsey Strip**

- 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:** Bull Run Coal Company → Hainsey Strip; 1974-08-22 to 1975-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Forcey Paul G Sr → Hainsey Strip; 1974-08-22 to 1975-08-04; source msha-controller-operator-history
- **controller_controls_operator:** Forcey Paul G Sr → Bull Run Coal Company; 1974-08-22 to 1975-08-04; source msha-controller-operator-history
- **operator_operates_mine:** Bull Run Coal Company Inc → Hainsey Strip; 1975-08-05 to 1976-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Zurowsky Lawrence → Hainsey Strip; 1975-08-05 to 1976-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Zurowsky Lawrence → Bull Run Coal Company Inc; 1975-08-05 to 1976-08-10; source msha-controller-operator-history
- **operator_operates_mine:** Bull Run Coal Company → Hainsey Strip; 1976-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Forcey Paul G → Hainsey Strip; 1976-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Forcey Paul G → Bull Run Coal Company; 1976-08-11 to current/open; source msha-controller-operator-history