# Relationship history for MSHA mine 1510943

Current hierarchy: **Daniel Paul E → Shawn Coals Inc → No 5**

- 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

- **controller_controls_mine:** Ratliff Frank → No 5; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel Paul E → No 5; 1977-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Ratliff Coal Company → No 5; 1977-10-01 to 1978-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Ratliff Frank → Ratliff Coal Company; 1977-10-01 to 1978-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Shawn Coals Inc → No 5; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel Paul E → Shawn Coals Inc; 1979-01-01 to current/open; source msha-controller-operator-history