# Relationship history for MSHA mine 1519266

Current hierarchy: **Harold E  Akers; Jim D  Akers → Hubble Mining Co. LLC → Hubble No. 7**

- 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

- **controller_controls_mine:** Robin Roy Belcher → Hubble No. 7; 1980-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jim D  Akers et al → Hubble No. 7; 2001-12-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** P B Dirt Movers Inc → Hubble No. 7; 2008-07-16 to 2009-10-12; source msha-controller-operator-history
- **controller_controls_operator:** Robin Roy Belcher → P B Dirt Movers Inc; 2008-07-16 to 2009-10-12; source msha-controller-operator-history
- **operator_operates_mine:** Hubble Mining Co. LLC → Hubble No. 7; 2009-10-13 to 2009-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → Hubble Mining Co. LLC; 2009-10-13 to 2009-12-15; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → Hubble Mining Co. LLC; 2009-10-13 to 2009-12-15; source msha-controller-operator-history
- **operator_operates_mine:** P B Dirt Movers Inc → Hubble No. 7; 2009-12-16 to 2010-03-24; source msha-controller-operator-history
- **controller_controls_operator:** Robin Roy Belcher → P B Dirt Movers Inc; 2009-12-16 to 2010-03-24; source msha-controller-operator-history
- **operator_operates_mine:** Hubble Mining Co. LLC → Hubble No. 7; 2010-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harold E  Akers et al → Hubble Mining Co. LLC; 2010-03-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim D  Akers et al → Hubble Mining Co. LLC; 2010-03-25 to current/open; source msha-controller-operator-history