# Relationship history for MSHA mine 2602080

Current hierarchy: **Lane Richard M → Lane & Phillips Mines → Lane & Phillips Mine #1**

- 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:** Lane & Phillips Mines → Lane & Phillips Mine #1; 1988-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lane Richard M → Lane & Phillips Mine #1; 1988-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lane Richard M → Lane & Phillips Mines; 1988-09-01 to current/open; source msha-controller-operator-history