# Relationship history for MSHA mine 4104185

Current hierarchy: **Wesley  Sanders; Steve  Turner → Lone Star Dirt & Paving → Lone Star Crusher**

- 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:** Lone Star Dirt & Paving → Lone Star Crusher; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Turner et al → Lone Star Crusher; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Turner et al → Lone Star Dirt & Paving; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wesley  Sanders et al → Lone Star Dirt & Paving; 2000-08-01 to current/open; source msha-controller-operator-history