# Relationship history for MSHA mine 1517604

Current hierarchy: **Avis A  Phillips → Phillips & Jordan Inc → #1 Strip & Auger**

- 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:** Phillips & Jordan Inc → #1 Strip & Auger; 1994-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Phillips Ted → #1 Strip & Auger; 1994-10-01 to 2018-07-30; source msha-controller-operator-history
- **controller_controls_operator:** Phillips Ted → Phillips & Jordan Inc; 1994-10-01 to 2018-07-30; source msha-controller-operator-history
- **controller_controls_mine:** Avis A  Phillips → #1 Strip & Auger; 2018-07-31 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Avis A  Phillips → Phillips & Jordan Inc; 2018-07-31 to current/open; source msha-controller-operator-history