# Relationship history for MSHA mine 4105319

Current hierarchy: **Dale K  Farrow → RECLAMATION CONTRACTORS OF TEXAS → 1115**

- 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

- **controller_controls_mine:** Dale K  Farrow → 1115; 2006-07-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** RECLAMATION CONTRACTORS OF TEXAS → 1115; 2017-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dale K  Farrow → RECLAMATION CONTRACTORS OF TEXAS; 2017-11-14 to current/open; source msha-controller-operator-history