# Relationship history for MSHA mine 1507781

Current hierarchy: **Robert E  Murray → Andalex Resources Inc → Crockett Tipple**

- 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:** New Imperial Coal Company Inc → Crockett Tipple; 1950-01-01 to 1988-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Stanley  Finley et al → Crockett Tipple; 1950-01-01 to 1988-05-05; source msha-controller-operator-history
- **controller_controls_operator:** Stanley  Finley et al → New Imperial Coal Company Inc; 1950-01-01 to 1988-05-05; source msha-controller-operator-history
- **controller_controls_mine:** Andalex Resources B V → Crockett Tipple; 1950-01-01 to 2006-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Andalex Resources Inc → Crockett Tipple; 1988-05-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andalex Resources B V → Andalex Resources Inc; 1988-05-06 to 2006-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Crockett Tipple; 2006-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → Andalex Resources Inc; 2006-08-09 to current/open; source msha-controller-operator-history