# Relationship history for MSHA mine 3200877

Current hierarchy: **Marv  Knopik → Knopik Pit Management, LLC → Knopik Pit Management, LLC**

- 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:** Knopik Pit Management → Knopik Pit Management, LLC; 2011-03-03 to 2026-01-11; source msha-controller-operator-history
- **controller_controls_mine:** Marv  Knopik et al → Knopik Pit Management, LLC; 2011-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marv  Knopik et al → Knopik Pit Management; 2011-03-03 to 2026-01-11; source msha-controller-operator-history
- **operator_operates_mine:** Hayden Aggregates LLC → Knopik Pit Management, LLC; 2026-01-12 to 2026-03-26; source msha-controller-operator-history
- **controller_controls_mine:** Joseph  Conery → Knopik Pit Management, LLC; 2026-01-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joseph  Conery → Hayden Aggregates LLC; 2026-01-12 to 2026-03-26; source msha-controller-operator-history
- **operator_operates_mine:** Knopik Pit Management, LLC → Knopik Pit Management, LLC; 2026-03-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marv  Knopik et al → Knopik Pit Management, LLC; 2026-03-27 to current/open; source msha-controller-operator-history