# Relationship history for MSHA mine 4104870

Current hierarchy: **Charlotte Ann  Longoria; David  Longoria → David Longoria Trucking & Construction LLC → Saenz Pit**

- 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:** David Longoria Trucking & Construction LLC → Saenz Pit; 2011-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** David  Longoria et al → Saenz Pit; 2011-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David  Longoria et al → David Longoria Trucking & Construction LLC; 2011-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charlotte Ann  Longoria et al → David Longoria Trucking & Construction LLC; 2011-04-11 to current/open; source msha-controller-operator-history