# Relationship history for MSHA mine 1101306

Current hierarchy: **Kurt  Bechthold → Payne & Dolan Inc → Midwest Aggregates**

- 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:** Petersen Sand & Gravel Inc → Midwest Aggregates; 1950-01-01 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Raymond A Peterson → Midwest Aggregates; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond A Peterson → Petersen Sand & Gravel Inc; 1950-01-01 to 1980-11-30; source msha-controller-operator-history
- **controller_controls_mine:** Kurt  Bechthold et al → Midwest Aggregates; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lake County Grading Inc → Midwest Aggregates; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Lake County Grading Inc → Midwest Aggregates; 1980-12-01 to 1994-03-01; source msha-controller-operator-history
- **controller_controls_operator:** Lake County Grading Inc → Lake County Grading Inc; 1980-12-01 to 1994-03-01; source msha-controller-operator-history
- **operator_operates_mine:** Lake County Grading Company Of Libertyville Inc → Midwest Aggregates; 1994-03-02 to 1995-05-21; source msha-controller-operator-history
- **controller_controls_mine:** Thomas A  Rosenquist → Midwest Aggregates; 1994-03-02 to 1995-05-21; source msha-controller-operator-history
- **controller_controls_operator:** Thomas A  Rosenquist → Lake County Grading Company Of Libertyville Inc; 1994-03-02 to 1995-05-21; source msha-controller-operator-history
- **operator_operates_mine:** Midwest Aggregates L L C → Midwest Aggregates; 1995-05-22 to 2000-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Ray  Sieracki → Midwest Aggregates; 1995-05-22 to 2000-04-18; source msha-controller-operator-history
- **controller_controls_operator:** Ray  Sieracki → Midwest Aggregates L L C; 1995-05-22 to 2000-04-18; source msha-controller-operator-history
- **operator_operates_mine:** Payne & Dolan Inc → Midwest Aggregates; 2000-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kurt  Bechthold et al → Payne & Dolan Inc; 2000-04-19 to current/open; source msha-controller-operator-history