# Relationship history for MSHA mine 0102156

Current hierarchy: **Kerlin Beulah & Paul E Jr → B & P Coal Company Inc → Raper Pit**

- 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:** B & P Coal Company Inc → Raper Pit; 1979-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kerlin Beulah & Paul E Jr → Raper Pit; 1979-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kerlin Beulah & Paul E Jr → B & P Coal Company Inc; 1979-11-01 to current/open; source msha-controller-operator-history