# Relationship history for MSHA mine 1200432

Current hierarchy: **Hoesli John J → Mifflin Mining Company Inc → South Pit Strip**

- 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:** Warrick Mining Company Inc → South Pit Strip; 1971-01-01 to 1977-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Lemmons & Company Inc → South Pit Strip; 1971-01-01 to 1977-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Lemmons & Company Inc → Warrick Mining Company Inc; 1971-01-01 to 1977-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Mifflin Mining Company Inc → South Pit Strip; 1977-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hoesli John J → South Pit Strip; 1977-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hoesli John J → Mifflin Mining Company Inc; 1977-07-01 to current/open; source msha-controller-operator-history