# Relationship history for MSHA mine 4405506

Current hierarchy: **Darrell  Monk → Carrie Coal Company Inc → No 4**

- 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:** Dotson Jimmy → No 4; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Darrell  Monk → No 4; 1976-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dotson & Rife Coal Company Inc → No 4; 1980-09-01 to 1981-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Dotson Jimmy → Dotson & Rife Coal Company Inc; 1980-09-01 to 1981-08-02; source msha-controller-operator-history
- **operator_operates_mine:** Carrie Coal Company Inc → No 4; 1981-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrell  Monk → Carrie Coal Company Inc; 1981-08-03 to current/open; source msha-controller-operator-history