# Relationship history for MSHA mine 4404178

Current hierarchy: **Frink Gary → Va Energy & Land Company → #1 Strip & Auger**

- 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:** Bar-Sel Equipment Inc → #1 Strip & Auger; 1975-09-01 to 1980-01-09; source msha-controller-operator-history
- **controller_controls_mine:** Poe Clyde & Charles James → #1 Strip & Auger; 1975-09-01 to 1980-01-09; source msha-controller-operator-history
- **controller_controls_operator:** Poe Clyde & Charles James → Bar-Sel Equipment Inc; 1975-09-01 to 1980-01-09; source msha-controller-operator-history
- **operator_operates_mine:** Va Energy & Land Company → #1 Strip & Auger; 1980-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Frink Gary → #1 Strip & Auger; 1980-01-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frink Gary → Va Energy & Land Company; 1980-01-10 to current/open; source msha-controller-operator-history