# Relationship history for MSHA mine 4607688

Current hierarchy: **Jollay R C → Southeast Leasing Inc → No 6 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:** Rogers Micca → No 6 Mine; 1988-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H E L Coals Inc → No 6 Mine; 1989-04-01 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Micca → H E L Coals Inc; 1989-04-01 to 1990-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Jollay R C Et Al → No 6 Mine; 1989-06-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southeast Leasing Inc → No 6 Mine; 1990-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jollay R C Et Al → Southeast Leasing Inc; 1990-05-01 to current/open; source msha-controller-operator-history