# Relationship history for MSHA mine 2902346

Current hierarchy: **Steve T  Bell; Randell  Bell → SBE Inc → Farm Pit**

- 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:** SBE Inc → Farm Pit; 2007-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve T  Bell  et al → Farm Pit; 2007-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve T  Bell  et al → SBE Inc; 2007-07-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randell  Bell  et al → SBE Inc; 2007-07-25 to current/open; source msha-controller-operator-history