# Relationship history for MSHA mine 4609137

Current hierarchy: **Kevin J  Bealko → Marion Docks Inc → Mine #11**

- 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

- **controller_controls_mine:** Robert R  Jeran → Mine #11; 1983-08-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin J  Bealko → Mine #11; 1985-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joe D  Richards → Mine #11; 1989-07-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Scorpio Mining Inc → Mine #11; 2006-01-24 to 2007-11-13; source msha-controller-operator-history
- **controller_controls_operator:** Joe D  Richards → Scorpio Mining Inc; 2006-01-24 to 2007-11-13; source msha-controller-operator-history
- **operator_operates_mine:** Roblee Coal Company → Mine #11; 2007-11-14 to 2008-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Robert R  Jeran → Roblee Coal Company; 2007-11-14 to 2008-08-19; source msha-controller-operator-history
- **operator_operates_mine:** Marion Docks Inc → Mine #11; 2008-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin J  Bealko → Marion Docks Inc; 2008-08-20 to current/open; source msha-controller-operator-history