# Relationship history for MSHA mine 2601822

Current hierarchy: **Casler William H → Agri Mineral Inc → Agri Mineral Mine & Mill**

- 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:** Minor Mineral Company Inc → Agri Mineral Mine & Mill; 1982-11-01 to 1987-10-25; source msha-controller-operator-history
- **controller_controls_mine:** Bill L Minor → Agri Mineral Mine & Mill; 1982-11-01 to 1987-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Bill L Minor → Minor Mineral Company Inc; 1982-11-01 to 1987-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Agri Mineral Inc → Agri Mineral Mine & Mill; 1987-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Casler William H → Agri Mineral Mine & Mill; 1987-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Casler William H → Agri Mineral Inc; 1987-10-26 to current/open; source msha-controller-operator-history