# Relationship history for MSHA mine 4105837

Current hierarchy: **Cody Preston Cory; Alex Ray Cobb; Jayce Wade Cobb → Independent Aggregates LLC → Independent #1 - Merkel Quarry**

- 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:** Independent Aggregates LLC → Independent #1 - Merkel Quarry; 2025-10-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jayce Wade Cobb et al → Independent #1 - Merkel Quarry; 2025-10-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jayce Wade Cobb et al → Independent Aggregates LLC; 2025-10-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cody Preston Cory et al → Independent Aggregates LLC; 2025-10-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alex Ray Cobb et al → Independent Aggregates LLC; 2025-10-14 to current/open; source msha-controller-operator-history