# Relationship history for MSHA mine 4405340

Current hierarchy: **Lester Ronnie → D L & P Coal Company Inc → No 1 Mine**

- 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:** R & J Coal Inc → No 1 Mine; 1979-11-01 to 1981-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Fuller Stanford C & Jerry K Deel → No 1 Mine; 1979-11-01 to 1981-06-18; source msha-controller-operator-history
- **controller_controls_operator:** Fuller Stanford C & Jerry K Deel → R & J Coal Inc; 1979-11-01 to 1981-06-18; source msha-controller-operator-history
- **operator_operates_mine:** D L & P Coal Company → No 1 Mine; 1981-06-19 to 1983-06-09; source msha-controller-operator-history
- **controller_controls_mine:** Price Junior V Et Al → No 1 Mine; 1981-06-19 to 1983-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Price Junior V Et Al → D L & P Coal Company; 1981-06-19 to 1983-06-09; source msha-controller-operator-history
- **operator_operates_mine:** D L & P Coal Company Inc → No 1 Mine; 1983-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lester Ronnie → No 1 Mine; 1983-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lester Ronnie → D L & P Coal Company Inc; 1983-06-10 to current/open; source msha-controller-operator-history