# Relationship history for MSHA mine 0103244

Current hierarchy: **Bobby  Parker → Poarch Sand & Gravel, L.L.C. → Poarch Sand & Gravel-Little River 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Bobby  Parker et al → Poarch Sand & Gravel-Little River Pit; 2000-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul W  Bryant Jr et al → Poarch Sand & Gravel-Little River Pit; 2001-06-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southeastern Sand & Gravel, LLC → Poarch Sand & Gravel-Little River Pit; 2002-05-02 to 2003-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Paul W  Bryant Jr et al → Southeastern Sand & Gravel, LLC; 2002-05-02 to 2003-02-18; source msha-controller-operator-history
- **controller_controls_operator:** Marc B  Tyson et al → Southeastern Sand & Gravel, LLC; 2002-05-02 to 2003-02-18; source msha-controller-operator-history
- **operator_operates_mine:** Poarch Sand & Gravel, L.L.C. → Poarch Sand & Gravel-Little River Pit; 2003-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bobby  Parker et al → Poarch Sand & Gravel, L.L.C.; 2003-02-19 to current/open; source msha-controller-operator-history