# Relationship history for MSHA mine 4605366

Current hierarchy: **Western America Energy Corp & Coal-Pac → Ramada Corp → Mine No 3**

- 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:** Cahar Coal Corp → Mine No 3; 1976-11-01 to 1977-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Call Wiley → Mine No 3; 1976-11-01 to 1977-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Call Wiley → Cahar Coal Corp; 1976-11-01 to 1977-10-31; source msha-controller-operator-history
- **operator_operates_mine:** Ramada Corp → Mine No 3; 1977-11-01 to 1978-06-11; source msha-controller-operator-history
- **controller_controls_mine:** Boothe Harold B & Danny R Reed → Mine No 3; 1977-11-01 to 1978-06-11; source msha-controller-operator-history
- **controller_controls_operator:** Boothe Harold B & Danny R Reed → Ramada Corp; 1977-11-01 to 1978-06-11; source msha-controller-operator-history
- **operator_operates_mine:** Ramada Corp → Mine No 3; 1978-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Western America Energy Corp & Coal-Pac → Mine No 3; 1978-06-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Western America Energy Corp & Coal-Pac → Ramada Corp; 1978-06-12 to current/open; source msha-controller-operator-history