# Relationship history for MSHA mine 2402525

Current hierarchy: **Harley  Whitney; Steve  Pengra → Saturday Sunday LLC → Saturday Sunday**

- 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:** Saturday Sunday LLC → Saturday Sunday; 2008-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steve  Pengra et al → Saturday Sunday; 2008-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Pengra et al → Saturday Sunday LLC; 2008-07-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harley  Whitney et al → Saturday Sunday LLC; 2008-07-14 to current/open; source msha-controller-operator-history