# Relationship history for MSHA mine 4401319

Current hierarchy: **Mullins Elbert R → High Splint Coal Company Inc → No 2 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:** Mullins Elbert R → No 2 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** David Branch Coal Company → No 2 Mine; 1950-01-01 to 1972-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Brummitt Jim → No 2 Mine; 1950-01-01 to 1972-10-31; source msha-controller-operator-history
- **controller_controls_operator:** Brummitt Jim → David Branch Coal Company; 1950-01-01 to 1972-10-31; source msha-controller-operator-history
- **operator_operates_mine:** High Splint Coal Company Inc → No 2 Mine; 1972-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullins Elbert R → High Splint Coal Company Inc; 1972-11-01 to current/open; source msha-controller-operator-history