# Relationship history for MSHA mine 2402579

Current hierarchy: **Jon W  Cayton; Denise  Cote → Warrens Transportation & Brokerage LLC → Mehling Pit**

- 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:** Warrens Transportation & Brokerage LLC → Mehling Pit; 2011-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jon W  Cayton et al → Mehling Pit; 2011-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jon W  Cayton et al → Warrens Transportation & Brokerage LLC; 2011-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Denise  Cote et al → Warrens Transportation & Brokerage LLC; 2011-04-13 to current/open; source msha-controller-operator-history