# Relationship history for MSHA mine 3503467

Current hierarchy: **Schuyler L  Van Wart → Central Rock & Redi-Mix LLC → Venable 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:** Rock-N-Ready Mix → Venable Pit; 1998-07-01 to 2009-03-04; source msha-controller-operator-history
- **controller_controls_mine:** Wesley R  Norton → Venable Pit; 1998-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wesley R  Norton → Rock-N-Ready Mix; 1998-07-01 to 2009-03-04; source msha-controller-operator-history
- **operator_operates_mine:** Southern Oregon Ready Mix, LLC → Venable Pit; 2009-03-05 to 2025-02-13; source msha-controller-operator-history
- **controller_controls_mine:** Edward J  Kernaghan → Venable Pit; 2009-03-05 to 2022-03-15; source msha-controller-operator-history
- **controller_controls_operator:** Edward J  Kernaghan → Southern Oregon Ready Mix, LLC; 2009-03-05 to 2022-03-15; source msha-controller-operator-history
- **controller_controls_mine:** John F Shea Construction → Venable Pit; 2022-03-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John F Shea Construction → Southern Oregon Ready Mix, LLC; 2022-03-16 to 2025-02-13; source msha-controller-operator-history
- **controller_controls_mine:** Schuyler L  Van Wart → Venable Pit; 2024-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Central Rock & Redi-Mix LLC → Venable Pit; 2025-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Schuyler L  Van Wart → Central Rock & Redi-Mix LLC; 2025-02-14 to current/open; source msha-controller-operator-history