# Relationship history for MSHA mine 4602158

Current hierarchy: **Majesty Coal Company → Glory Mining Company Inc → No 11-B Lost Creek Mine**

- 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

- **operator_operates_mine:** R & L Coal & Lumber Company → No 11-B Lost Creek Mine; 1950-01-01 to 1974-09-15; source msha-controller-operator-history
- **controller_controls_mine:** Larue Robert & Lloyd → No 11-B Lost Creek Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larue Robert & Lloyd → R & L Coal & Lumber Company; 1950-01-01 to 1974-09-15; source msha-controller-operator-history
- **operator_operates_mine:** Shaffer Mining Inc → No 11-B Lost Creek Mine; 1974-09-16 to 1976-05-24; source msha-controller-operator-history
- **controller_controls_mine:** Shaffer Mining Inc → No 11-B Lost Creek Mine; 1974-09-16 to 1976-05-24; source msha-controller-operator-history
- **controller_controls_operator:** Shaffer Mining Inc → Shaffer Mining Inc; 1974-09-16 to 1976-05-24; source msha-controller-operator-history
- **operator_operates_mine:** Glory Mining Company Inc → No 11-B Lost Creek Mine; 1976-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Majesty Coal Company → No 11-B Lost Creek Mine; 1976-05-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Majesty Coal Company → Glory Mining Company Inc; 1976-05-25 to current/open; source msha-controller-operator-history
