# Relationship history for MSHA mine 0301536

Current hierarchy: **Hester Wayne E → W E Hester Arkansas Coal Producer → Vesta No 1**

- 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:** A B G Mining Company → Vesta No 1; 1982-10-01 to 1983-07-21; source msha-controller-operator-history
- **controller_controls_mine:** Anders William-Bill Babbitt & F A Gann → Vesta No 1; 1982-10-01 to 1983-07-21; source msha-controller-operator-history
- **controller_controls_operator:** Anders William-Bill Babbitt & F A Gann → A B G Mining Company; 1982-10-01 to 1983-07-21; source msha-controller-operator-history
- **operator_operates_mine:** W E Hester Arkansas Coal Producer → Vesta No 1; 1983-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Hester Wayne E → Vesta No 1; 1983-07-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hester Wayne E → W E Hester Arkansas Coal Producer; 1983-07-22 to current/open; source msha-controller-operator-history