# Relationship history for MSHA mine 4105239

Current hierarchy: **James J  Davis → DavisWetzel Group, LLC → DavisWetzel Group, 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:** DavisWetzel Group, LLC → DavisWetzel Group, LLC; 2017-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Daniel R  Wetzel et al → DavisWetzel Group, LLC; 2017-02-22 to 2023-10-02; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Wetzel et al → DavisWetzel Group, LLC; 2017-02-22 to 2023-10-02; source msha-controller-operator-history
- **controller_controls_operator:** James J  Davis et al → DavisWetzel Group, LLC; 2017-02-22 to 2023-10-02; source msha-controller-operator-history
- **controller_controls_mine:** James J  Davis → DavisWetzel Group, LLC; 2023-10-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James J  Davis → DavisWetzel Group, LLC; 2023-10-03 to current/open; source msha-controller-operator-history