# Relationship history for MSHA mine 4104955

Current hierarchy: **Felipe E  Morales → Romo Stone LLC → Romo 500 Mine**

- 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:** Romo Stone LLC → Romo 500 Mine; 2012-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Felipe E  Morales → Romo 500 Mine; 2012-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Felipe E  Morales → Romo Stone LLC; 2012-08-01 to current/open; source msha-controller-operator-history