# Relationship history for MSHA mine 4608824

Current hierarchy: **William B  Brown Jr; Robert L  Lewis → B & B Energy Inc → Jagged Central**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** B & B Energy Inc → Jagged Central; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Lewis et al → Jagged Central; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Lewis et al → B & B Energy Inc; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William B  Brown Jr et al → B & B Energy Inc; 2000-03-01 to current/open; source msha-controller-operator-history