# Relationship history for MSHA mine 4105828

Current hierarchy: **Chris  Davis → Sendera Buffalo Hills Investments, LLC → Buffalo Hills Aggregates**

- 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:** Sendera Buffalo Hills Investments, LLC → Buffalo Hills Aggregates; 2025-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Davis → Buffalo Hills Aggregates; 2025-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Davis → Sendera Buffalo Hills Investments, LLC; 2025-12-01 to current/open; source msha-controller-operator-history