# Relationship history for MSHA mine 2100722

Current hierarchy: **Kent D  Peterson → Bituminous Roadways, Inc. → Prior Lake Aggregates 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

- **operator_operates_mine:** Prior Lake Aggregates Inc → Prior Lake Aggregates Inc; 1950-01-01 to 2018-02-19; source msha-controller-operator-history
- **controller_controls_mine:** William G Pearson → Prior Lake Aggregates Inc; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** William G Pearson → Prior Lake Aggregates Inc; 1950-01-01 to 2018-02-19; source msha-controller-operator-history
- **controller_controls_mine:** Kent D  Peterson → Prior Lake Aggregates Inc; 2008-05-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pentagon Materials Inc. DBA Prior Lake Aggregates → Prior Lake Aggregates Inc; 2018-02-20 to 2026-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Jim  Voda et al → Prior Lake Aggregates Inc; 2018-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jim  Voda et al → Pentagon Materials Inc. DBA Prior Lake Aggregates; 2018-02-20 to 2026-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Martin  Preusser et al → Pentagon Materials Inc. DBA Prior Lake Aggregates; 2018-02-20 to 2026-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Bituminous Roadways, Inc. → Prior Lake Aggregates Inc; 2026-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kent D  Peterson → Bituminous Roadways, Inc.; 2026-04-07 to current/open; source msha-controller-operator-history