# Relationship history for MSHA mine 0202985

Current hierarchy: **Kenneth  Worrick; Jim  Bush → Kenneth Worrick/Jim Bush → Los Flores**

- 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:** Kenneth Worrick/Jim Bush → Los Flores; 2002-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Bush et al → Los Flores; 2002-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Bush et al → Kenneth Worrick/Jim Bush; 2002-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth  Worrick et al → Kenneth Worrick/Jim Bush; 2002-06-18 to current/open; source msha-controller-operator-history