# Relationship history for MSHA mine 0503118

Current hierarchy: **Rasmussen Fred & Clifton Patterson → Duel Mining Company → Starlite No 7**

- 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:** Sage & Sage Mining Company → Starlite No 7; 1950-01-01 to 1979-08-15; source msha-controller-operator-history
- **controller_controls_mine:** Sage & Sage Mining Company → Starlite No 7; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sage & Sage Mining Company → Sage & Sage Mining Company; 1950-01-01 to 1979-08-15; source msha-controller-operator-history
- **operator_operates_mine:** Duel Mining Company → Starlite No 7; 1979-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rasmussen Fred & Clifton Patterson → Starlite No 7; 1979-08-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rasmussen Fred & Clifton Patterson → Duel Mining Company; 1979-08-16 to current/open; source msha-controller-operator-history