# Relationship history for MSHA mine 4801583

Current hierarchy: **Cory B  Hancock → Wyoming Rockin' H Inc → WYOMING ROCKIN' H, INC.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Wyoming Rockin' H Inc → WYOMING ROCKIN' H, INC.; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cory B  Hancock → WYOMING ROCKIN' H, INC.; 2000-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cory B  Hancock → Wyoming Rockin' H Inc; 2000-08-01 to current/open; source msha-controller-operator-history