# Relationship history for MSHA mine 4606976

Current hierarchy: **Leslie John M → J Moar Energy Inc → #1 Loading Facility (2)**

- 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:** Costain Group PLC → #1 Loading Facility (2); 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Central Coal Processing Ii Inc → #1 Loading Facility (2); 1985-08-01 to 1990-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Jack L  Williams → #1 Loading Facility (2); 1985-08-01 to 1990-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Jack L  Williams → Central Coal Processing Ii Inc; 1985-08-01 to 1990-10-17; source msha-controller-operator-history
- **operator_operates_mine:** Costain Coal Inc → #1 Loading Facility (2); 1990-10-18 to 1993-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Costain Group PLC → Costain Coal Inc; 1990-10-18 to 1993-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Trujillo Pat → #1 Loading Facility (2); 1993-01-18 to 1994-03-15; source msha-controller-operator-history
- **operator_operates_mine:** Summersville Five Block Coal Corp → #1 Loading Facility (2); 1993-04-07 to 1994-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Trujillo Pat → Summersville Five Block Coal Corp; 1993-04-07 to 1994-03-15; source msha-controller-operator-history
- **operator_operates_mine:** J Moar Energy Inc → #1 Loading Facility (2); 1994-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Leslie John M → #1 Loading Facility (2); 1994-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Leslie John M → J Moar Energy Inc; 1994-03-16 to current/open; source msha-controller-operator-history