# Relationship history for MSHA mine 4607209

Current hierarchy: **Tinnel Nelson → Tinnelco Inc → Mine #2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Eagle Enterprises Inc → Mine #2; 1986-10-01 to 1987-02-01; source msha-controller-operator-history
- **controller_controls_mine:** Facemire Lanty D → Mine #2; 1986-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Facemire Lanty D → Eagle Enterprises Inc; 1986-10-01 to 1987-02-01; source msha-controller-operator-history
- **operator_operates_mine:** Thacker & Associates T & A Inc → Mine #2; 1987-02-02 to 1987-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Thacker Ralph → Mine #2; 1987-02-02 to 1987-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Thacker Ralph → Thacker & Associates T & A Inc; 1987-02-02 to 1987-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Falk Connie → Mine #2; 1987-04-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C P & S Inc → Mine #2; 1987-06-15 to 1988-03-09; source msha-controller-operator-history
- **controller_controls_operator:** Falk Connie → C P & S Inc; 1987-06-15 to 1988-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Benco Corp → Mine #2; 1988-03-10 to 1988-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Bennett Clyde James → Mine #2; 1988-03-10 to 1988-04-10; source msha-controller-operator-history
- **controller_controls_operator:** Bennett Clyde James → Benco Corp; 1988-03-10 to 1988-04-10; source msha-controller-operator-history
- **operator_operates_mine:** K & B Coal Company → Mine #2; 1988-04-11 to 1988-12-04; source msha-controller-operator-history
- **controller_controls_mine:** Showalter Richard L → Mine #2; 1988-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Showalter Richard L → K & B Coal Company; 1988-04-11 to 1988-12-04; source msha-controller-operator-history
- **operator_operates_mine:** Health & Safety Training Inc → Mine #2; 1988-12-05 to 1989-04-09; source msha-controller-operator-history
- **controller_controls_mine:** Hatcher Rudolf → Mine #2; 1988-12-05 to 1989-10-19; source msha-controller-operator-history
- **controller_controls_operator:** Hatcher Rudolf → Health & Safety Training Inc; 1988-12-05 to 1989-04-09; source msha-controller-operator-history
- **operator_operates_mine:** Double O Mining Inc → Mine #2; 1989-04-10 to 1989-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Odell Steven A → Mine #2; 1989-04-10 to 1989-09-17; source msha-controller-operator-history
- **controller_controls_operator:** Odell Steven A → Double O Mining Inc; 1989-04-10 to 1989-09-17; source msha-controller-operator-history
- **controller_controls_mine:** Tinnel Nelson → Mine #2; 1989-04-25 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tinnelco Inc → Mine #2; 1989-09-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tinnel Nelson → Tinnelco Inc; 1989-09-18 to current/open; source msha-controller-operator-history