# Relationship history for MSHA mine 4605464

Current hierarchy: **Shepler Thomas → Use Coal Inc → Dinah #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

- **controller_controls_mine:** Bright William T → Dinah #1 (Surface); 1976-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Land Use Corp → Dinah #1 (Surface); 1977-03-01 to 1983-11-27; source msha-controller-operator-history
- **controller_controls_operator:** Bright William T → Land Use Corp; 1977-03-01 to 1983-11-27; source msha-controller-operator-history
- **operator_operates_mine:** Macjan Inc → Dinah #1 (Surface); 1983-11-28 to 1985-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Anderson James Et Al → Dinah #1 (Surface); 1983-11-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anderson James Et Al → Macjan Inc; 1983-11-28 to 1985-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Shepler Thomas → Dinah #1 (Surface); 1984-07-31 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Use Coal Inc → Dinah #1 (Surface); 1985-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Shepler Thomas → Use Coal Inc; 1985-05-17 to current/open; source msha-controller-operator-history