# Relationship history for MSHA mine 4608349

Current hierarchy: **Jerry D  Stalnaker → Jerry Stalnaker Coal Company Inc → Jerry Stalnakr Coal Co Inc**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Jerry Stalnaker Coal Company Inc → Jerry Stalnakr Coal Co Inc; 1993-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jerry D  Stalnaker → Jerry Stalnakr Coal Co Inc; 1993-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jerry D  Stalnaker → Jerry Stalnaker Coal Company Inc; 1993-10-01 to current/open; source msha-controller-operator-history