# Relationship history for MSHA mine 0404932

Current hierarchy: **Reed Family Companies → George Reed Inc → Snelling Plant/George Reed Inc**

- 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:** Reed Family Companies → Snelling Plant/George Reed Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J Blasingame & Son Inc → Snelling Plant/George Reed Inc; 1988-04-01 to 2004-10-13; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Blasingame → Snelling Plant/George Reed Inc; 1988-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Blasingame → J Blasingame & Son Inc; 1988-04-01 to 2004-10-13; source msha-controller-operator-history
- **operator_operates_mine:** Black Diamond Aggregates → Snelling Plant/George Reed Inc; 2004-10-14 to 2007-02-28; source msha-controller-operator-history
- **controller_controls_mine:** Reed Family Companies → Snelling Plant/George Reed Inc; 2004-10-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Family Companies → Black Diamond Aggregates; 2004-10-14 to 2007-02-28; source msha-controller-operator-history
- **operator_operates_mine:** George Reed Inc → Snelling Plant/George Reed Inc; 2007-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Reed Family Companies → George Reed Inc; 2007-03-01 to current/open; source msha-controller-operator-history