# Relationship history for MSHA mine 4606251

Current hierarchy: **Mounts Irene → Rocky Equipment Rental Inc → No 1**

- 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:** Cline Lassie → No 1; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Faith Mining Company → No 1; 1980-10-01 to 1981-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Barnette Floyd Jr → No 1; 1980-10-01 to 1981-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Barnette Floyd Jr → Faith Mining Company; 1980-10-01 to 1981-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Red Rose Coal Company Inc → No 1; 1981-07-30 to 1984-01-02; source msha-controller-operator-history
- **controller_controls_operator:** Cline Lassie → Red Rose Coal Company Inc; 1981-07-30 to 1984-01-02; source msha-controller-operator-history
- **controller_controls_mine:** Cline Ted-Ed & Mark Et Al → No 1; 1983-06-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thunder Mountain Energy Inc → No 1; 1984-01-03 to 1985-12-19; source msha-controller-operator-history
- **controller_controls_operator:** Cline Ted-Ed & Mark Et Al → Thunder Mountain Energy Inc; 1984-01-03 to 1985-12-19; source msha-controller-operator-history
- **operator_operates_mine:** Rocky Equipment Rental Inc → No 1; 1985-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mounts Irene → No 1; 1985-12-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mounts Irene → Rocky Equipment Rental Inc; 1985-12-20 to current/open; source msha-controller-operator-history