# Relationship history for MSHA mine 3003960

Current hierarchy: **Dana M Fuller → Fuller's Excavation LLC → Nelson 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

- **controller_controls_mine:** Dana M Fuller → Nelson Pit; 2014-05-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Fuller's Excavation LLC → Nelson Pit; 2016-02-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dana M Fuller → Fuller's Excavation LLC; 2016-02-18 to current/open; source msha-controller-operator-history