# Relationship history for MSHA mine 4607618

Current hierarchy: **Mullins Steve L → Auger Resources Inc → Mine No 2**

- 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

- **controller_controls_mine:** Mullins Steve L → Mine No 2; 1987-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cherokee Coal Company → Mine No 2; 1988-11-01 to 1989-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Prichard Timothy R → Mine No 2; 1988-11-01 to 1989-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Prichard Timothy R → Cherokee Coal Company; 1988-11-01 to 1989-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Auger Resources Inc → Mine No 2; 1989-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Steve L → Auger Resources Inc; 1989-06-01 to current/open; source msha-controller-operator-history