# Relationship history for MSHA mine 4105173

Current hierarchy: **Aissa  Garza; Rufino  Garza Jr; Lisa  Carlos → L & R Aggregates LLC → L & R Aggregates LLC**

- 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:** L & R Aggregates LLC → L & R Aggregates LLC; 2016-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lisa  Carlos et al → L & R Aggregates LLC; 2016-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lisa  Carlos et al → L & R Aggregates LLC; 2016-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Aissa  Garza et al → L & R Aggregates LLC; 2016-02-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rufino  Garza Jr et al → L & R Aggregates LLC; 2016-02-23 to current/open; source msha-controller-operator-history