# Relationship history for MSHA mine 4101368

Current hierarchy: **Bobby  Pannkuk Sr; H Wade  Miller → Mc Kinney Crushing Company Inc → BRYANT**

- 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:** Mc Kinney Crushing Company Inc → BRYANT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Bobby  Pannkuk Sr et al → BRYANT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Pannkuk Sr et al → Mc Kinney Crushing Company Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** H Wade  Miller et al → Mc Kinney Crushing Company Inc; 1950-01-01 to current/open; source msha-controller-operator-history