# Relationship history for MSHA mine 3609190

Current hierarchy: **Jason  Miller → J C Drilling & Ditching → Auger #2**

- 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:** R L Miller Augering → Auger #2; 2004-01-07 to 2007-10-17; source msha-controller-operator-history
- **controller_controls_mine:** Roger L  Miller → Auger #2; 2004-01-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Roger L  Miller → R L Miller Augering; 2004-01-07 to 2007-10-17; source msha-controller-operator-history
- **operator_operates_mine:** J C Drilling & Ditching → Auger #2; 2007-10-18 to 2011-08-14; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Miller → Auger #2; 2007-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Miller → J C Drilling & Ditching; 2007-10-18 to 2011-08-14; source msha-controller-operator-history
- **operator_operates_mine:** WV Industrial Services, Inc. → Auger #2; 2011-08-15 to 2012-08-16; source msha-controller-operator-history
- **controller_controls_mine:** John W  Preece → Auger #2; 2011-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John W  Preece → WV Industrial Services, Inc.; 2011-08-15 to 2012-08-16; source msha-controller-operator-history
- **operator_operates_mine:** J C Drilling & Ditching → Auger #2; 2012-08-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Miller → J C Drilling & Ditching; 2012-08-17 to current/open; source msha-controller-operator-history