# Relationship history for MSHA mine 1508288

Current hierarchy: **Morgan Wayne T Jr → Regal Mining Inc → Regal No 1 Surface**

- 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:** Hardy Coal Company Inc → Regal No 1 Surface; 1975-04-25 to 1976-11-12; source msha-controller-operator-history
- **controller_controls_mine:** Franklin Charles K → Regal No 1 Surface; 1975-04-25 to 1979-04-19; source msha-controller-operator-history
- **controller_controls_operator:** Franklin Charles K → Hardy Coal Company Inc; 1975-04-25 to 1976-11-12; source msha-controller-operator-history
- **operator_operates_mine:** Hardy Coal Company Inc → Regal No 1 Surface; 1976-11-13 to 1978-04-05; source msha-controller-operator-history
- **controller_controls_mine:** Perry Dallas → Regal No 1 Surface; 1976-11-13 to 1978-04-05; source msha-controller-operator-history
- **controller_controls_operator:** Perry Dallas → Hardy Coal Company Inc; 1976-11-13 to 1978-04-05; source msha-controller-operator-history
- **operator_operates_mine:** Regal Mining Inc → Regal No 1 Surface; 1978-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Morgan Wayne T Jr → Regal No 1 Surface; 1978-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Morgan Wayne T Jr → Regal Mining Inc; 1978-04-06 to current/open; source msha-controller-operator-history