# Relationship history for MSHA mine 3800732

Current hierarchy: **Benjy  Hardee → A. O. Hardee & Son, Inc. → Barefoot  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

- **controller_controls_mine:** Benjy  Hardee → Barefoot  Pit; 1999-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** A. O. Hardee & Son, Inc. → Barefoot  Pit; 2010-11-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Benjy  Hardee → A. O. Hardee & Son, Inc.; 2010-11-30 to current/open; source msha-controller-operator-history