# Relationship history for MSHA mine 1514548

Current hierarchy: **Collins Rudell (Buddy) & Steve → S & C Construction → No 1 Site**

- 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:** S & C Construction → No 1 Site; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Collins Rudell (Buddy) & Steve → No 1 Site; 1984-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins Rudell (Buddy) & Steve → S & C Construction; 1984-04-01 to current/open; source msha-controller-operator-history