# Relationship history for MSHA mine 4606404

Current hierarchy: **D L (Jack)  Bowling → Pride Coal Company Inc → #14**

- 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:** True Energy Inc → #14; 1981-09-01 to 1987-06-15; source msha-controller-operator-history
- **controller_controls_mine:** Belcher Harold L → #14; 1981-09-01 to 1987-06-15; source msha-controller-operator-history
- **controller_controls_operator:** Belcher Harold L → True Energy Inc; 1981-09-01 to 1987-06-15; source msha-controller-operator-history
- **operator_operates_mine:** Pride Coal Company Inc → #14; 1987-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** D L (Jack)  Bowling → #14; 1987-06-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** D L (Jack)  Bowling → Pride Coal Company Inc; 1987-06-16 to current/open; source msha-controller-operator-history