# Relationship history for MSHA mine 1513339

Current hierarchy: **Simpson Herbert Gaston → Marie Enterprises Inc → Marie Enterprises Inc**

- 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

- **controller_controls_mine:** Ball Ralph → Marie Enterprises Inc; 1981-06-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pruden Mining Inc → Marie Enterprises Inc; 1982-01-01 to 1982-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Marlow Leonard B → Marie Enterprises Inc; 1982-01-01 to 1982-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Marlow Leonard B → Pruden Mining Inc; 1982-01-01 to 1982-11-08; source msha-controller-operator-history
- **operator_operates_mine:** Sterling Energy Inc → Marie Enterprises Inc; 1982-11-09 to 1986-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Ball Ralph → Sterling Energy Inc; 1982-11-09 to 1986-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Simpson Herbert Gaston → Marie Enterprises Inc; 1986-01-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A-1 Mining Inc → Marie Enterprises Inc; 1986-07-01 to 1987-09-09; source msha-controller-operator-history
- **controller_controls_mine:** Elliott Reed → Marie Enterprises Inc; 1986-07-01 to 1987-09-09; source msha-controller-operator-history
- **controller_controls_operator:** Elliott Reed → A-1 Mining Inc; 1986-07-01 to 1987-09-09; source msha-controller-operator-history
- **operator_operates_mine:** Marie Enterprises Inc → Marie Enterprises Inc; 1987-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Simpson Herbert Gaston → Marie Enterprises Inc; 1987-09-10 to current/open; source msha-controller-operator-history