# Relationship history for MSHA mine 4607117

Current hierarchy: **Thomas Russell (Rick) → Par-U Mining & Development Corp → Clinton No 4 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Larry David  Cochran et al → Clinton No 4 Mine; 1981-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wiley V  Cullop Jr → Clinton No 4 Mine; 1985-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Phil-Matt Mining Company Inc → Clinton No 4 Mine; 1986-05-01 to 1987-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Larry David  Cochran et al → Phil-Matt Mining Company Inc; 1986-05-01 to 1987-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Harry G  Cooke et al → Phil-Matt Mining Company Inc; 1986-05-01 to 1987-08-02; source msha-controller-operator-history
- **operator_operates_mine:** Vica Coal Company Inc → Clinton No 4 Mine; 1987-08-03 to 1988-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Wiley V  Cullop Jr → Vica Coal Company Inc; 1987-08-03 to 1988-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Dale Coal Inc → Clinton No 4 Mine; 1988-07-01 to 1994-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth R  Calloway → Clinton No 4 Mine; 1988-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth R  Calloway → Dale Coal Inc; 1988-07-01 to 1994-06-08; source msha-controller-operator-history
- **controller_controls_mine:** Thomas Russell (Rick) Et Al → Clinton No 4 Mine; 1989-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Par-U Mining & Development Corp → Clinton No 4 Mine; 1994-06-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Thomas Russell (Rick) Et Al → Par-U Mining & Development Corp; 1994-06-09 to current/open; source msha-controller-operator-history