# Relationship history for MSHA mine 1512294

Current hierarchy: **Mel (Van)  Villines → Pike Coal Company → Jetson Coal Processors**

- 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:** Pike Coal Company → Jetson Coal Processors; 1980-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mel (Van)  Villines → Jetson Coal Processors; 1980-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mel (Van)  Villines → Pike Coal Company; 1980-04-01 to current/open; source msha-controller-operator-history