# Relationship history for MSHA mine 4300498

Current hierarchy: **Andrew C  Julian; Jason B  Julian → JULIAN MATERIALS, LLC → JULIAN QUARRY #2 CHESTERFIELD STONE**

- 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:** Ghl Construction Corp → JULIAN QUARRY #2 CHESTERFIELD STONE; 1996-04-01 to 2009-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Peter  Holl  et al → JULIAN QUARRY #2 CHESTERFIELD STONE; 1996-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Holl  et al → Ghl Construction Corp; 1996-04-01 to 2009-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Chesterfield Stone → JULIAN QUARRY #2 CHESTERFIELD STONE; 2009-02-01 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Jeremy  Blum → JULIAN QUARRY #2 CHESTERFIELD STONE; 2009-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeremy  Blum → Chesterfield Stone; 2009-02-01 to 2013-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Andrew C  Julian et al → JULIAN QUARRY #2 CHESTERFIELD STONE; 2012-09-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Julian Enterprises, LLC → JULIAN QUARRY #2 CHESTERFIELD STONE; 2013-07-01 to 2018-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Andrew C  Julian et al → Julian Enterprises, LLC; 2013-07-01 to 2018-03-18; source msha-controller-operator-history
- **controller_controls_operator:** Jason B  Julian et al → Julian Enterprises, LLC; 2013-07-01 to 2018-03-18; source msha-controller-operator-history
- **controller_controls_mine:** Jason B  Julian et al → JULIAN QUARRY #2 CHESTERFIELD STONE; 2017-10-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Julian Materials, LLC → JULIAN QUARRY #2 CHESTERFIELD STONE; 2018-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason B  Julian et al → Julian Materials, LLC; 2018-03-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andrew C  Julian et al → Julian Materials, LLC; 2018-03-19 to current/open; source msha-controller-operator-history