# Relationship history for MSHA mine 4601653

Current hierarchy: **Garretson Roy → K & C Energy Inc → Mine No 1 (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

- **operator_operates_mine:** Robinson-Phillips Coal Company Inc → Mine No 1 (1); 1950-01-01 to 1978-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Massey Energy Company → Mine No 1 (1); 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Robinson-Phillips Coal Company Inc; 1950-01-01 to 1978-02-28; source msha-controller-operator-history
- **operator_operates_mine:** C & G Coal Company Inc → Mine No 1 (1); 1978-03-01 to 1981-01-04; source msha-controller-operator-history
- **controller_controls_mine:** Self Theodore R & Ellis Coleman → Mine No 1 (1); 1978-03-01 to 1981-01-04; source msha-controller-operator-history
- **controller_controls_operator:** Self Theodore R & Ellis Coleman → C & G Coal Company Inc; 1978-03-01 to 1981-01-04; source msha-controller-operator-history
- **operator_operates_mine:** C & G Coal Company Inc → Mine No 1 (1); 1981-01-05 to 1985-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Stanley John B & E Ronald Coates → Mine No 1 (1); 1981-01-05 to 1985-05-28; source msha-controller-operator-history
- **controller_controls_operator:** Stanley John B & E Ronald Coates → C & G Coal Company Inc; 1981-01-05 to 1985-05-28; source msha-controller-operator-history
- **controller_controls_mine:** Salyers Don → Mine No 1 (1); 1981-06-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C L & S Coal Company Inc → Mine No 1 (1); 1985-05-29 to 1994-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Salyers Don → C L & S Coal Company Inc; 1985-05-29 to 1994-11-08; source msha-controller-operator-history
- **operator_operates_mine:** K & C Energy Inc → Mine No 1 (1); 1994-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Garretson Roy → Mine No 1 (1); 1994-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Garretson Roy → K & C Energy Inc; 1994-11-09 to current/open; source msha-controller-operator-history