# Relationship history for MSHA mine 1514540

Current hierarchy: **Hurley Bruce → Peter Creek Coal Company Inc → No 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:** El Paso Energy Corp → No 1; 1980-10-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tojo Mining → No 1; 1984-04-01 to 1984-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Fields Mason & Larry Ratliff → No 1; 1984-04-01 to 1984-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Fields Mason & Larry Ratliff → Tojo Mining; 1984-04-01 to 1984-11-08; source msha-controller-operator-history
- **operator_operates_mine:** Mc Coy Caney Coal Company → No 1; 1984-11-09 to 1986-11-09; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Mc Coy Caney Coal Company; 1984-11-09 to 1986-11-09; source msha-controller-operator-history
- **operator_operates_mine:** Zephyer Coal Company Inc → No 1; 1986-11-10 to 1987-10-12; source msha-controller-operator-history
- **controller_controls_mine:** James A  Comyns → No 1; 1986-11-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James A  Comyns → Zephyer Coal Company Inc; 1986-11-10 to 1987-10-12; source msha-controller-operator-history
- **controller_controls_mine:** John F  Stapleton → No 1; 1987-05-01 to 1990-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Fern Coal Corp → No 1; 1987-10-13 to 1988-10-18; source msha-controller-operator-history
- **controller_controls_mine:** Smith David → No 1; 1987-10-13 to 1988-10-18; source msha-controller-operator-history
- **controller_controls_operator:** Smith David → Fern Coal Corp; 1987-10-13 to 1988-10-18; source msha-controller-operator-history
- **operator_operates_mine:** Desparado Fuels Inc → No 1; 1988-10-19 to 1990-02-05; source msha-controller-operator-history
- **controller_controls_operator:** John F  Stapleton → Desparado Fuels Inc; 1988-10-19 to 1990-02-05; source msha-controller-operator-history
- **operator_operates_mine:** Peter Creek Coal Company Inc → No 1; 1990-02-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hurley Bruce → No 1; 1990-02-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hurley Bruce → Peter Creek Coal Company Inc; 1990-02-06 to current/open; source msha-controller-operator-history