# Relationship history for MSHA mine 2400911

Current hierarchy: **Prouse Jerry J → Storm King Coal Mining Company Inc → Storm-King**

- 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:** Divide Coal Mining Company → Storm-King; 1950-01-01 to 1983-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Carlson Jack H & Victor C → Storm-King; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlson Jack H & Victor C → Divide Coal Mining Company; 1950-01-01 to 1983-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Storm King Coal Mining Company Inc → Storm-King; 1983-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Prouse Jerry J → Storm-King; 1983-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Prouse Jerry J → Storm King Coal Mining Company Inc; 1983-09-15 to current/open; source msha-controller-operator-history