# Relationship history for MSHA mine 4403465

Current hierarchy: **Mullins Carl & Sylvia → C & S Coal Company → No 3 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Mullins Coal Company → No 3 Mine; 1950-01-01 to 1990-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Estil → No 3 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Estil → Mullins Coal Company; 1950-01-01 to 1990-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Mullins Carl & Sylvia → No 3 Mine; 1981-09-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C & S Coal Company → No 3 Mine; 1990-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Carl & Sylvia → C & S Coal Company; 1990-01-17 to current/open; source msha-controller-operator-history