# Relationship history for MSHA mine 1515944

Current hierarchy: **Benjamin R.  Bennett → Rb Coal Company Inc → #7 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Benjamin R.  Bennett → #7 Mine; 1979-11-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lemar Reece → #7 Mine; 1986-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lemarco Inc → #7 Mine; 1987-03-01 to 1989-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Lemar Reece → Lemarco Inc; 1987-03-01 to 1989-08-22; source msha-controller-operator-history
- **controller_controls_mine:** Hood Carl E → #7 Mine; 1989-08-01 to 1992-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Ridgepoint Mining Inc → #7 Mine; 1989-08-23 to 1992-09-14; source msha-controller-operator-history
- **controller_controls_operator:** Hood Carl E → Ridgepoint Mining Inc; 1989-08-23 to 1992-09-14; source msha-controller-operator-history
- **operator_operates_mine:** Rb Coal Company Inc → #7 Mine; 1992-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjamin R.  Bennett → Rb Coal Company Inc; 1992-09-15 to current/open; source msha-controller-operator-history