# Relationship history for MSHA mine 4604133

Current hierarchy: **Adkins Tommy → Adkins Coal Company → 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Black Diamond Coal Company Inc → No 3; 1974-08-04 to 1977-09-05; source msha-controller-operator-history
- **controller_controls_mine:** Kennie Ray  Childers → No 3; 1974-08-04 to 1977-09-05; source msha-controller-operator-history
- **controller_controls_operator:** Kennie Ray  Childers → Black Diamond Coal Company Inc; 1974-08-04 to 1977-09-05; source msha-controller-operator-history
- **controller_controls_mine:** Adkins Tommy Et Al → No 3; 1974-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Quixote Coal Company Inc → No 3; 1977-09-06 to 1983-09-27; source msha-controller-operator-history
- **controller_controls_mine:** Woody W S → No 3; 1977-09-06 to 1983-09-27; source msha-controller-operator-history
- **controller_controls_operator:** Woody W S → Quixote Coal Company Inc; 1977-09-06 to 1983-09-27; source msha-controller-operator-history
- **operator_operates_mine:** Adkins Coal Company → No 3; 1983-09-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Adkins Tommy Et Al → Adkins Coal Company; 1983-09-28 to current/open; source msha-controller-operator-history