# Relationship history for MSHA mine 4608736

Current hierarchy: **Loyal G  Forman Jr → Loyal G Forman & Son → Wesley 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Ali Co → Wesley Strip; 1998-09-01 to 2000-12-14; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery S  Sisler → Wesley Strip; 1998-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery S  Sisler → Ali Co; 1998-09-01 to 2000-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Loyal G Forman & Son → Wesley Strip; 2000-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Loyal G  Forman Jr → Wesley Strip; 2000-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Loyal G  Forman Jr → Loyal G Forman & Son; 2000-12-15 to current/open; source msha-controller-operator-history