# Relationship history for MSHA mine 1512292

Current hierarchy: **Jessica R  Lester → Lester Coal Company Inc → No 3**

- 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:** Pugh Douglas → No 3; 1973-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rash Russell → No 3; 1977-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Middle Creek Coal Corp → No 3; 1980-04-01 to 1980-10-21; source msha-controller-operator-history
- **controller_controls_operator:** Rash Russell → Middle Creek Coal Corp; 1980-04-01 to 1980-10-21; source msha-controller-operator-history
- **operator_operates_mine:** Ironhorse Coal Corp → No 3; 1980-10-22 to 1981-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Pugh Douglas → Ironhorse Coal Corp; 1980-10-22 to 1981-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Clevinger David-William Roscoe Et Al → No 3; 1981-06-01 to 1982-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Lobo Coal Inc → No 3; 1981-08-03 to 1982-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Clevinger David-William Roscoe Et Al → Lobo Coal Inc; 1981-08-03 to 1982-03-14; source msha-controller-operator-history
- **controller_controls_mine:** Jessica R  Lester et al → No 3; 1982-02-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Progressive Mining Company Inc → No 3; 1982-03-15 to 1983-08-16; source msha-controller-operator-history
- **controller_controls_mine:** Smith Warney → No 3; 1982-03-15 to 1983-08-16; source msha-controller-operator-history
- **controller_controls_operator:** Smith Warney → Progressive Mining Company Inc; 1982-03-15 to 1983-08-16; source msha-controller-operator-history
- **operator_operates_mine:** Swinge Branch Coal Company → No 3; 1983-08-17 to 1984-05-20; source msha-controller-operator-history
- **controller_controls_mine:** Ratliff David → No 3; 1983-08-17 to 1984-05-20; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff David → Swinge Branch Coal Company; 1983-08-17 to 1984-05-20; source msha-controller-operator-history
- **operator_operates_mine:** Silver Star Coal Company Inc → No 3; 1984-05-21 to 1985-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Meade David Et Al → No 3; 1984-05-21 to 1985-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Meade David Et Al → Silver Star Coal Company Inc; 1984-05-21 to 1985-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Lester Coal Company Inc → No 3; 1985-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jessica R  Lester et al → Lester Coal Company Inc; 1985-04-19 to current/open; source msha-controller-operator-history