# Relationship history for MSHA mine 4604515

Current hierarchy: **Scott James → Drummond Energy Inc → S P & E Coals Inc 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:** Braxton Coals Inc → S P & E Coals Inc Mine; 1975-02-18 to 1975-12-10; source msha-controller-operator-history
- **controller_controls_mine:** Anderson Arthur L → S P & E Coals Inc Mine; 1975-02-18 to 1975-12-10; source msha-controller-operator-history
- **controller_controls_operator:** Anderson Arthur L → Braxton Coals Inc; 1975-02-18 to 1975-12-10; source msha-controller-operator-history
- **operator_operates_mine:** S P & E Coals Inc → S P & E Coals Inc Mine; 1975-12-11 to 1980-09-22; source msha-controller-operator-history
- **controller_controls_mine:** Mc Shane George H → S P & E Coals Inc Mine; 1975-12-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Shane George H → S P & E Coals Inc; 1975-12-11 to 1980-09-22; source msha-controller-operator-history
- **operator_operates_mine:** Drummond Energy Inc → S P & E Coals Inc Mine; 1980-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Scott James → S P & E Coals Inc Mine; 1980-09-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott James → Drummond Energy Inc; 1980-09-23 to current/open; source msha-controller-operator-history