# Relationship history for MSHA mine 1701166

Current hierarchy: **Jack  Searles; Kenneth  Haley; Errol (Scott)  Millbury; David L  Haley → Oquossoc Shale & Gravel LLC → Oquossoc Shale & Gravel**

- 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:** Oquossoc Shale & Gravel LLC → Oquossoc Shale & Gravel; 2025-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Searles et al → Oquossoc Shale & Gravel; 2025-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Searles et al → Oquossoc Shale & Gravel LLC; 2025-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David L  Haley et al → Oquossoc Shale & Gravel LLC; 2025-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Errol (Scott)  Millbury et al → Oquossoc Shale & Gravel LLC; 2025-08-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Haley et al → Oquossoc Shale & Gravel LLC; 2025-08-05 to current/open; source msha-controller-operator-history