# Relationship history for MSHA mine 1514529

Current hierarchy: **Mullis Allen J → Mullis Coal Company → #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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Stewart Thomas → #3 Mine; 1982-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Colossal Equipment Rental Company Inc → #3 Mine; 1984-04-01 to 1984-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Stewart Thomas → Colossal Equipment Rental Company Inc; 1984-04-01 to 1984-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Mullis Coal Company → #3 Mine; 1985-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mullis Allen J → #3 Mine; 1985-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mullis Allen J → Mullis Coal Company; 1985-01-01 to current/open; source msha-controller-operator-history