# Relationship history for MSHA mine 0301722

Current hierarchy: **Dustin  Hedger → Hedger Aggregate Inc → Hedger Aggregates Incorporated**

- 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:** 141 Sand & Gravel Inc → Hedger Aggregates Incorporated; 1991-10-01 to 1997-03-02; source msha-controller-operator-history
- **controller_controls_mine:** Garry  Tate → Hedger Aggregates Incorporated; 1991-10-01 to 1997-03-02; source msha-controller-operator-history
- **controller_controls_operator:** Garry  Tate → 141 Sand & Gravel Inc; 1991-10-01 to 1997-03-02; source msha-controller-operator-history
- **operator_operates_mine:** Hedger Aggregate Inc → Hedger Aggregates Incorporated; 1997-03-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chris L  Hedger et al → Hedger Aggregates Incorporated; 1997-03-03 to 2018-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Chris L  Hedger et al → Hedger Aggregate Inc; 1997-03-03 to 2018-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Dustin O  Hedger et al → Hedger Aggregate Inc; 1997-03-03 to 2018-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Dustin  Hedger → Hedger Aggregates Incorporated; 2018-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dustin  Hedger → Hedger Aggregate Inc; 2018-06-01 to current/open; source msha-controller-operator-history