# Relationship history for MSHA mine 1511988

Current hierarchy: **Huston Hubert → Corey Mining 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Daris  Stump → No 1; 1974-07-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Stump Coal Company Inc → No 1; 1979-07-01 to 1980-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Daris  Stump → Stump Coal Company Inc; 1979-07-01 to 1980-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Cedar Coal Company Inc → No 1; 1980-09-01 to 1981-10-15; source msha-controller-operator-history
- **controller_controls_mine:** Larry  Phillips → No 1; 1980-09-01 to 1981-10-15; source msha-controller-operator-history
- **controller_controls_operator:** Larry  Phillips → Cedar Coal Company Inc; 1980-09-01 to 1981-10-15; source msha-controller-operator-history
- **controller_controls_mine:** El Paso Energy Corp → No 1; 1980-10-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mc Coy Caney Coal Company → No 1; 1981-10-16 to 1982-06-22; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Mc Coy Caney Coal Company; 1981-10-16 to 1982-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Triple K Coal Company Inc → No 1; 1982-06-23 to 1984-02-20; source msha-controller-operator-history
- **controller_controls_mine:** Stanley Kenneth R → No 1; 1982-06-23 to 1984-02-20; source msha-controller-operator-history
- **controller_controls_operator:** Stanley Kenneth R → Triple K Coal Company Inc; 1982-06-23 to 1984-02-20; source msha-controller-operator-history
- **operator_operates_mine:** Mc Coy Caney Coal Company → No 1; 1984-02-21 to 1984-02-27; source msha-controller-operator-history
- **controller_controls_operator:** El Paso Energy Corp → Mc Coy Caney Coal Company; 1984-02-21 to 1984-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Underground Energy & Development Corp → No 1; 1984-02-28 to 1984-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Smith Rickey E → No 1; 1984-02-28 to 1984-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Smith Rickey E → Underground Energy & Development Corp; 1984-02-28 to 1984-06-18; source msha-controller-operator-history
- **operator_operates_mine:** T & D Coal Company Inc → No 1; 1984-06-19 to 1984-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Williamson Terry → No 1; 1984-06-19 to 1984-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Williamson Terry → T & D Coal Company Inc; 1984-06-19 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 1987-08-11; 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 1987-08-11; source msha-controller-operator-history
- **operator_operates_mine:** Corey Mining Company Inc → No 1; 1987-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Huston Hubert → No 1; 1987-08-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Huston Hubert → Corey Mining Company Inc; 1987-08-12 to current/open; source msha-controller-operator-history