# Relationship history for MSHA mine 1511745

Current hierarchy: **Inspiration Resources Corporation → Plateau Fuels Inc → Tipple #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:** Right Beaver Processing Company → Tipple #1; 1979-01-01 to 1980-12-02; source msha-controller-operator-history
- **controller_controls_mine:** Johnson Ralph → Tipple #1; 1979-01-01 to 1980-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Johnson Ralph → Right Beaver Processing Company; 1979-01-01 to 1980-12-02; source msha-controller-operator-history
- **controller_controls_mine:** Meade James & Edward Slone → Tipple #1; 1979-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Welco Mining Company → Tipple #1; 1980-12-03 to 1981-01-12; source msha-controller-operator-history
- **controller_controls_mine:** Occidental Petroleum Corp → Tipple #1; 1980-12-03 to 1985-09-04; source msha-controller-operator-history
- **controller_controls_operator:** Occidental Petroleum Corp → Welco Mining Company; 1980-12-03 to 1981-01-12; source msha-controller-operator-history
- **operator_operates_mine:** Coal Mac Sales → Tipple #1; 1981-01-13 to 1982-04-18; source msha-controller-operator-history
- **controller_controls_mine:** M Lynn  Parrish → Tipple #1; 1981-01-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** M Lynn  Parrish → Coal Mac Sales; 1981-01-13 to 1982-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Coalwar Energy Inc → Tipple #1; 1982-04-19 to 1982-10-20; source msha-controller-operator-history
- **controller_controls_operator:** Meade James & Edward Slone → Coalwar Energy Inc; 1982-04-19 to 1982-10-20; source msha-controller-operator-history
- **operator_operates_mine:** Carhaul Inc → Tipple #1; 1982-10-21 to 1985-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Hall Carl → Tipple #1; 1982-10-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hall Carl → Carhaul Inc; 1982-10-21 to 1985-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Plateau Fuels Inc → Tipple #1; 1985-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Inspiration Resources Corporation → Tipple #1; 1985-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Inspiration Resources Corporation → Plateau Fuels Inc; 1985-04-19 to current/open; source msha-controller-operator-history