# Relationship history for MSHA mine 3503707

Current hierarchy: **Alvin N  Luttrell; Danny L  Luttrell; Nina E  Luttrell → Luttrells Trucking & Excavating → Barb Wire**

- 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:** Luttrells Trucking & Excavating → Barb Wire; 2008-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nina E  Luttrell  et al → Barb Wire; 2008-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nina E  Luttrell  et al → Luttrells Trucking & Excavating; 2008-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Danny L  Luttrell  et al → Luttrells Trucking & Excavating; 2008-09-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alvin N  Luttrell  et al → Luttrells Trucking & Excavating; 2008-09-10 to current/open; source msha-controller-operator-history