# Relationship history for MSHA mine 1800569

Current hierarchy: **NSM PLC → Pbs Coals Inc → Phillips 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

- **controller_controls_mine:** Andalex Resources B V → Phillips Mine; 1950-01-01 to 2006-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Phillips Coal Inc → Phillips Mine; 1975-04-01 to 1980-01-24; source msha-controller-operator-history
- **controller_controls_mine:** Kaneb Services Inc → Phillips Mine; 1975-04-01 to 1980-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Kaneb Services Inc → Phillips Coal Inc; 1975-04-01 to 1980-01-24; source msha-controller-operator-history
- **operator_operates_mine:** Andalex Resources Inc → Phillips Mine; 1980-01-25 to 1990-01-17; source msha-controller-operator-history
- **controller_controls_operator:** Andalex Resources B V → Andalex Resources Inc; 1980-01-25 to 1990-01-17; source msha-controller-operator-history
- **controller_controls_mine:** NSM PLC → Phillips Mine; 1983-05-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pbs Coals Inc → Phillips Mine; 1990-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** NSM PLC → Pbs Coals Inc; 1990-01-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Phillips Mine; 2006-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Andalex Resources Inc; 2006-08-09 to 1990-01-17; source msha-controller-operator-history