# Relationship history for MSHA mine 2003146

Current hierarchy: **James  Pieprzak; Terry S  Pieprzak → Hilltop-Reddog Aggregate LLC → Hilltop-Reddog Aggregate**

- 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:** Red Dog Sand & Gravel → Hilltop-Reddog Aggregate; 1999-12-01 to 2009-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Craig  Melesky et al → Hilltop-Reddog Aggregate; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Craig  Melesky et al → Red Dog Sand & Gravel; 1999-12-01 to 2009-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Melesky et al → Red Dog Sand & Gravel; 1999-12-01 to 2009-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Hilltop-Reddog Aggregate LLC → Hilltop-Reddog Aggregate; 2010-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** S&T Land Development LLC et al → Hilltop-Reddog Aggregate; 2010-01-01 to 2017-09-18; source msha-controller-operator-history
- **controller_controls_operator:** S&T Land Development LLC et al → Hilltop-Reddog Aggregate LLC; 2010-01-01 to 2017-09-18; source msha-controller-operator-history
- **controller_controls_mine:** James  Pieprzak et al → Hilltop-Reddog Aggregate; 2017-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Pieprzak et al → Hilltop-Reddog Aggregate LLC; 2017-09-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry S  Pieprzak et al → Hilltop-Reddog Aggregate LLC; 2017-09-19 to current/open; source msha-controller-operator-history