# Relationship history for MSHA mine 2200645

Current hierarchy: **Tracy Lynn  Matthews; Rickey G  Matthews → Matthews Trucking & Construction LLC → Matthews Trucking & Construction LLC**

- 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:** Frank Climer & Sons Sand & Gravel → Matthews Trucking & Construction LLC; 1992-08-01 to 2003-11-03; source msha-controller-operator-history
- **controller_controls_mine:** Frank  Climer → Matthews Trucking & Construction LLC; 1992-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Climer → Frank Climer & Sons Sand & Gravel; 1992-08-01 to 2003-11-03; source msha-controller-operator-history
- **operator_operates_mine:** Matthews Trucking & Construction LLC → Matthews Trucking & Construction LLC; 2003-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rickey G  Matthews et al → Matthews Trucking & Construction LLC; 2003-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rickey G  Matthews et al → Matthews Trucking & Construction LLC; 2003-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tracy Lynn  Matthews et al → Matthews Trucking & Construction LLC; 2003-11-04 to current/open; source msha-controller-operator-history