# Relationship history for MSHA mine 4607451

Current hierarchy: **Larry B  McKinney → Rhino Mining Inc → Tommy Creek No 1 Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Timothy L  McCoy → Tommy Creek No 1 Mine; 1984-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tommy Creek Coal Company → Tommy Creek No 1 Mine; 1988-01-01 to 1997-03-09; source msha-controller-operator-history
- **controller_controls_mine:** Henry Paul  Kizer et al → Tommy Creek No 1 Mine; 1988-01-01 to 1997-03-09; source msha-controller-operator-history
- **controller_controls_operator:** Henry Paul  Kizer et al → Tommy Creek Coal Company; 1988-01-01 to 1997-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Mate Creek Loading Inc → Tommy Creek No 1 Mine; 1997-03-10 to 1999-02-14; source msha-controller-operator-history
- **controller_controls_operator:** Timothy L  McCoy → Mate Creek Loading Inc; 1997-03-10 to 1999-02-14; source msha-controller-operator-history
- **controller_controls_mine:** Larry B  McKinney → Tommy Creek No 1 Mine; 1999-02-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rhino Mining Inc → Tommy Creek No 1 Mine; 1999-02-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Larry B  McKinney → Rhino Mining Inc; 1999-02-15 to current/open; source msha-controller-operator-history