# Relationship history for MSHA mine 3503980

Current hierarchy: **Denise  Kinney; Nathan  Kinney; Steve  Kinney; Chris  Hudak → Kinney & Sons Dump Trucking LLC → K & S 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Kinney & Sons Dump Trucking LLC → K & S Quarry; 2026-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris  Hudak et al → K & S Quarry; 2026-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chris  Hudak et al → Kinney & Sons Dump Trucking LLC; 2026-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Denise  Kinney et al → Kinney & Sons Dump Trucking LLC; 2026-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nathan  Kinney et al → Kinney & Sons Dump Trucking LLC; 2026-02-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Kinney et al → Kinney & Sons Dump Trucking LLC; 2026-02-26 to current/open; source msha-controller-operator-history