# Relationship history for MSHA mine 0103184

Current hierarchy: **Rodney  Gordon; Michael  Ahlin → Midas Coal Company Incorporated → Berry Mine**

- 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:** Midas Coal Company Incorporated → Berry Mine; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Trimble M H → Berry Mine; 2000-03-01 to 2002-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Trimble M H → Midas Coal Company Incorporated; 2000-03-01 to 2002-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Ahlin et al → Berry Mine; 2002-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Ahlin et al → Midas Coal Company Incorporated; 2002-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Gordon et al → Midas Coal Company Incorporated; 2002-08-02 to current/open; source msha-controller-operator-history