# Relationship history for MSHA mine 0901247

Current hierarchy: **Kirk S  Laney → Dixon Airline Recycling and Disposal, LLC → Dixon Airline Recycling and Disposal 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Dixon Airline Recycling and Disposal, LLC → Dixon Airline Recycling and Disposal LLC; 2019-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kirk S  Laney → Dixon Airline Recycling and Disposal LLC; 2019-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kirk S  Laney → Dixon Airline Recycling and Disposal, LLC; 2019-02-20 to current/open; source msha-controller-operator-history