# Relationship history for MSHA mine 4104518

Current hierarchy: **Jobeco Materials LLC → Jobe Materials LP → Red Sands Quarry**

- 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:** Petra Materials → Red Sands Quarry; 2005-02-01 to 2011-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Raul  Villa → Red Sands Quarry; 2005-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raul  Villa → Petra Materials; 2005-02-01 to 2011-08-21; source msha-controller-operator-history
- **controller_controls_mine:** Irene  Epperson et al → Red Sands Quarry; 2005-04-26 to 2024-07-14; source msha-controller-operator-history
- **operator_operates_mine:** Jobe Materials LP → Red Sands Quarry; 2011-08-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Irene  Epperson et al → Jobe Materials LP; 2011-08-22 to 2024-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Stanley P  Jobe et al → Jobe Materials LP; 2011-08-22 to 2024-07-14; source msha-controller-operator-history
- **controller_controls_mine:** Jobeco Materials LLC et al → Red Sands Quarry; 2024-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jobeco Materials LLC et al → Jobe Materials LP; 2024-07-15 to current/open; source msha-controller-operator-history