# Relationship history for MSHA mine 1514382

Current hierarchy: **Robert C  Billips → Peter Fork Mining Company → Peter Fork Mining-Stalyan Hwit**

- 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:** Robert C  Billips → Peter Fork Mining-Stalyan Hwit; 1974-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Zepcevski Jovan & Theodore Parker → Peter Fork Mining-Stalyan Hwit; 1981-11-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Joline Inc → Peter Fork Mining-Stalyan Hwit; 1983-12-01 to 1987-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Zepcevski Jovan & Theodore Parker → Joline Inc; 1983-12-01 to 1987-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Glen-Kel Inc → Peter Fork Mining-Stalyan Hwit; 1987-06-16 to 1987-10-21; source msha-controller-operator-history
- **controller_controls_mine:** Parker Theodore → Peter Fork Mining-Stalyan Hwit; 1987-06-16 to 1987-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Parker Theodore → Glen-Kel Inc; 1987-06-16 to 1987-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Stalyan Hwit Coal Company → Peter Fork Mining-Stalyan Hwit; 1987-10-22 to 1988-03-23; source msha-controller-operator-history
- **controller_controls_mine:** Slone Gene David → Peter Fork Mining-Stalyan Hwit; 1987-10-22 to 1988-03-23; source msha-controller-operator-history
- **controller_controls_operator:** Slone Gene David → Stalyan Hwit Coal Company; 1987-10-22 to 1988-03-23; source msha-controller-operator-history
- **operator_operates_mine:** Stalyan Hwit Coal Company → Peter Fork Mining-Stalyan Hwit; 1988-03-24 to 1989-06-05; source msha-controller-operator-history
- **controller_controls_mine:** Smith Dennis → Peter Fork Mining-Stalyan Hwit; 1988-03-24 to 1989-06-05; source msha-controller-operator-history
- **controller_controls_operator:** Smith Dennis → Stalyan Hwit Coal Company; 1988-03-24 to 1989-06-05; source msha-controller-operator-history
- **operator_operates_mine:** Stalyan Hwit Coal Company → Peter Fork Mining-Stalyan Hwit; 1989-06-06 to 1989-08-03; source msha-controller-operator-history
- **controller_controls_mine:** Coup Management Inc → Peter Fork Mining-Stalyan Hwit; 1989-06-06 to 1989-08-03; source msha-controller-operator-history
- **controller_controls_operator:** Coup Management Inc → Stalyan Hwit Coal Company; 1989-06-06 to 1989-08-03; source msha-controller-operator-history
- **operator_operates_mine:** Peter Fork Mining Company → Peter Fork Mining-Stalyan Hwit; 1989-08-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert C  Billips → Peter Fork Mining Company; 1989-08-04 to current/open; source msha-controller-operator-history