# Relationship history for MSHA mine 3303314

Current hierarchy: **Kermit L  James; Richard  James Jr → Hillcrest Coal → Hillcrest Mine (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:** Hillcrest Coal → Hillcrest Mine (Strip); 1974-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Richard  James Jr  et al → Hillcrest Mine (Strip); 1974-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard  James Jr  et al → Hillcrest Coal; 1974-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kermit L  James et al → Hillcrest Coal; 1974-12-01 to current/open; source msha-controller-operator-history