# Relationship history for MSHA mine 2302512

Current hierarchy: **Matt  Stallcup; Rachel  Stallcup → Yeary Trucking Sand and Gravel → Yeary Trucking Sand and Gravel Plant #2**

- 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

- **operator_operates_mine:** Stallcup Stone LLC → Yeary Trucking Sand and Gravel Plant #2; 2016-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matt  Stallcup et al → Yeary Trucking Sand and Gravel Plant #2; 2016-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matt  Stallcup et al → Stallcup Stone LLC; 2016-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rachel  Stallcup et al → Stallcup Stone LLC; 2016-11-01 to current/open; source msha-controller-operator-history