# Relationship history for MSHA mine 4105235

Current hierarchy: **Clay  Thomas; Brett  Brantley → Texas Select Resources, LLC → Mustang Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Texas Select Resources, LLC → Mustang Plant; 2017-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brett  Brantley et al → Mustang Plant; 2017-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brett  Brantley et al → Texas Select Resources, LLC; 2017-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clay  Thomas et al → Texas Select Resources, LLC; 2017-02-22 to current/open; source msha-controller-operator-history