# Relationship history for MSHA mine 2501215

Current hierarchy: **Terry  Jessen → Rock Express Inc → CR 332**

- 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:** Henderson Earth Moving → CR 332; 2003-03-24 to 2004-07-29; source msha-controller-operator-history
- **controller_controls_mine:** Bob D  Henderson → CR 332; 2003-03-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bob D  Henderson → Henderson Earth Moving; 2003-03-24 to 2004-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Rock Express Inc → CR 332; 2004-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Jessen → CR 332; 2004-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Jessen → Rock Express Inc; 2004-07-30 to current/open; source msha-controller-operator-history