# Relationship history for MSHA mine 1502005

Current hierarchy: **Solite Corp → Terry Glenn Coal Company 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

- **operator_operates_mine:** Terry Glenn Coal Company → No 1; 1950-01-01 to 1974-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Loving Fred → No 1; 1950-01-01 to 1974-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Loving Fred → Terry Glenn Coal Company; 1950-01-01 to 1974-04-11; source msha-controller-operator-history
- **operator_operates_mine:** Terry Glenn Coal Company Inc → No 1; 1974-04-12 to 1989-10-25; source msha-controller-operator-history
- **controller_controls_mine:** Solite Corp → No 1; 1974-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Solite Corp → Terry Glenn Coal Company Inc; 1974-04-12 to 1989-10-25; source msha-controller-operator-history
- **controller_controls_mine:** Barry  Rogers → No 1; 1985-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** S & L Enterprises Inc → No 1; 1989-10-26 to 1991-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Teshon Steven → No 1; 1989-10-26 to 1991-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Teshon Steven → S & L Enterprises Inc; 1989-10-26 to 1991-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Terry Glenn Coal Company Inc → No 1; 1991-04-01 to 1991-05-07; source msha-controller-operator-history
- **controller_controls_operator:** Solite Corp → Terry Glenn Coal Company Inc; 1991-04-01 to 1991-05-07; source msha-controller-operator-history
- **operator_operates_mine:** Bob & Cecil Contractors Inc → No 1; 1991-05-08 to 1993-02-03; source msha-controller-operator-history
- **controller_controls_operator:** Barry  Rogers → Bob & Cecil Contractors Inc; 1991-05-08 to 1993-02-03; source msha-controller-operator-history
- **operator_operates_mine:** Terry Glenn Coal Company Inc → No 1; 1993-02-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Solite Corp → Terry Glenn Coal Company Inc; 1993-02-04 to current/open; source msha-controller-operator-history