# Relationship history for MSHA mine 0102626

Current hierarchy: **Bowen Albert S → Gulf Coal & Mining Company Inc → Pit 32**

- 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:** Gulf Coal & Mining Company Inc → Pit 32; 1985-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bowen Albert S Et Al → Pit 32; 1985-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bowen Albert S Et Al → Gulf Coal & Mining Company Inc; 1985-05-01 to current/open; source msha-controller-operator-history