# Relationship history for MSHA mine 4607393

Current hierarchy: **Richard T  Hatfield; James E  Hatfield → Hart-Hat Coal Company Inc → No 3**

- 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:** Glenview Resources Inc → No 3; 1987-10-01 to 1990-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Hatcher Rudolf → No 3; 1987-10-01 to 1990-09-09; source msha-controller-operator-history
- **controller_controls_operator:** Hatcher Rudolf → Glenview Resources Inc; 1987-10-01 to 1990-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Richard T  Hatfield et al → No 3; 1990-01-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tri-Energy Resources Inc → No 3; 1990-09-10 to 1991-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Herndon David N → No 3; 1990-09-10 to 1991-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Herndon David N → Tri-Energy Resources Inc; 1990-09-10 to 1991-07-30; source msha-controller-operator-history
- **operator_operates_mine:** Tri Energy Resources Inc → No 3; 1991-07-31 to 1991-12-03; source msha-controller-operator-history
- **controller_controls_mine:** Compton Lynn → No 3; 1991-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Compton Lynn → Tri Energy Resources Inc; 1991-07-31 to 1991-12-03; source msha-controller-operator-history
- **operator_operates_mine:** Hart-Hat Coal Company Inc → No 3; 1991-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Richard T  Hatfield et al → Hart-Hat Coal Company Inc; 1991-12-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James E  Hatfield et al → Hart-Hat Coal Company Inc; 1991-12-04 to current/open; source msha-controller-operator-history