# Relationship history for MSHA mine 2900499

Current hierarchy: **Redland Plc → Western Mobile New Mexico Inc → Osuna**

- 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:** Universal Constructors Inc → Osuna; 1950-01-01 to 1980-03-20; source msha-controller-operator-history
- **controller_controls_mine:** Universal Industries Inc → Osuna; 1950-01-01 to 1980-03-20; source msha-controller-operator-history
- **controller_controls_operator:** Universal Industries Inc → Universal Constructors Inc; 1950-01-01 to 1980-03-20; source msha-controller-operator-history
- **controller_controls_mine:** Robert G  Morper → Osuna; 1950-01-01 to 1989-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Universal Constructors Inc → Osuna; 1980-03-21 to 1981-07-06; source msha-controller-operator-history
- **controller_controls_mine:** Stone Paul → Osuna; 1980-03-21 to 1981-07-06; source msha-controller-operator-history
- **controller_controls_operator:** Stone Paul → Universal Constructors Inc; 1980-03-21 to 1981-07-06; source msha-controller-operator-history
- **operator_operates_mine:** Albuquerque Materials Inc → Osuna; 1981-07-07 to 1989-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert G  Morper → Albuquerque Materials Inc; 1981-07-07 to 1989-03-31; source msha-controller-operator-history
- **controller_controls_mine:** Redland Plc → Osuna; 1988-06-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Western Mobile New Mexico Inc → Osuna; 1989-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Redland Plc → Western Mobile New Mexico Inc; 1989-04-01 to current/open; source msha-controller-operator-history