# Relationship history for MSHA mine 0405712

Current hierarchy: **Keith M  Reilly → Romero General Construction Corp → Portable Plant C**

- 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:** Keith M  Reilly → Portable Plant C; 2004-10-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Romero General Construction Corp → Portable Plant C; 2007-02-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith M  Reilly → Romero General Construction Corp; 2007-02-22 to current/open; source msha-controller-operator-history