# Relationship history for MSHA mine 4102807

Current hierarchy: **Cogema S A → Cogema Mining Inc → HOLIDAY/EL MESQUITE**

- 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

- **operator_operates_mine:** Mobil Coal Producing Inc → HOLIDAY/EL MESQUITE; 1979-01-01 to 1987-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Mobil Corp → HOLIDAY/EL MESQUITE; 1979-01-01 to 1987-09-11; source msha-controller-operator-history
- **controller_controls_operator:** Mobil Corp → Mobil Coal Producing Inc; 1979-01-01 to 1987-09-11; source msha-controller-operator-history
- **controller_controls_mine:** Pinnacle West Capital Corp → HOLIDAY/EL MESQUITE; 1986-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Total Compagnie Francaise Des Petroles → HOLIDAY/EL MESQUITE; 1987-05-21 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Malapai Resources Company → HOLIDAY/EL MESQUITE; 1987-09-12 to 1990-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Pinnacle West Capital Corp → Malapai Resources Company; 1987-09-12 to 1990-09-19; source msha-controller-operator-history
- **operator_operates_mine:** Total Minerals Corp → HOLIDAY/EL MESQUITE; 1990-09-20 to 1993-11-14; source msha-controller-operator-history
- **controller_controls_operator:** Total Compagnie Francaise Des Petroles → Total Minerals Corp; 1990-09-20 to 1993-11-14; source msha-controller-operator-history
- **operator_operates_mine:** Cogema Mining Inc → HOLIDAY/EL MESQUITE; 1993-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cogema S A → HOLIDAY/EL MESQUITE; 1993-11-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cogema S A → Cogema Mining Inc; 1993-11-15 to current/open; source msha-controller-operator-history