# Relationship history for MSHA mine 0504752

Current hierarchy: **George W  Hall → Hall-Irwin Corp → Centennial Resources**

- 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:** George W  Hall et al → Centennial Resources; 1988-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Hall-Irwin Construction Co. → Centennial Resources; 2002-06-24 to 2003-07-07; source msha-controller-operator-history
- **controller_controls_operator:** George W  Hall et al → Hall-Irwin Construction Co.; 2002-06-24 to 2003-07-07; source msha-controller-operator-history
- **operator_operates_mine:** Hall-Irwin Corp → Centennial Resources; 2003-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** George W  Hall et al → Centennial Resources; 2003-07-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** George W  Hall et al → Hall-Irwin Corp; 2003-07-08 to current/open; source msha-controller-operator-history