# Relationship history for MSHA mine 1601543

Current hierarchy: **Maxwell L  Johnson III → Crawford Aggregate Industries → Cucullu**

- 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

- **controller_controls_mine:** Maxwell L  Johnson III et al → Cucullu; 2009-08-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Regional Sand and Gravel, LLC → Cucullu; 2014-09-10 to 2024-03-10; source msha-controller-operator-history
- **controller_controls_mine:** M Renee  Miller et al → Cucullu; 2014-09-10 to 2017-03-23; source msha-controller-operator-history
- **controller_controls_operator:** M Renee  Miller et al → Regional Sand and Gravel, LLC; 2014-09-10 to 2017-03-23; source msha-controller-operator-history
- **controller_controls_operator:** M Lane  Dyess et al → Regional Sand and Gravel, LLC; 2014-09-10 to 2017-03-23; source msha-controller-operator-history
- **controller_controls_mine:** Marc C  Dyess → Cucullu; 2017-03-24 to 2019-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Marc C  Dyess → Regional Sand and Gravel, LLC; 2017-03-24 to 2019-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Marcus C  Dyess et al → Cucullu; 2020-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marcus C  Dyess et al → Regional Sand and Gravel, LLC; 2020-01-01 to 2024-03-10; source msha-controller-operator-history
- **controller_controls_operator:** Marcus Lane  Dyess et al → Regional Sand and Gravel, LLC; 2020-01-01 to 2024-03-10; source msha-controller-operator-history
- **operator_operates_mine:** Crawford Aggregate Industries → Cucullu; 2024-03-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Maxwell L  Johnson III et al → Crawford Aggregate Industries; 2024-03-11 to current/open; source msha-controller-operator-history