# Relationship history for MSHA mine 4105086

Current hierarchy: **Martin  Aguado → Aguado Stone Inc. → Aguado Stone Inc. - 151 Jarrell**

- 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

- **controller_controls_mine:** Martin  Aguado → Aguado Stone Inc. - 151 Jarrell; 1997-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Aguado Stone Inc. → Aguado Stone Inc. - 151 Jarrell; 2014-09-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Martin  Aguado → Aguado Stone Inc.; 2014-09-09 to current/open; source msha-controller-operator-history