# Relationship history for MSHA mine 4104803

Current hierarchy: **Francisco Javier  Rivera; Juan  Hernandez → H&R Rock LLC → H&R Rock LLC**

- 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:** B & F Rock → H&R Rock LLC; 2009-11-04 to 2024-09-10; source msha-controller-operator-history
- **controller_controls_mine:** Felipe  Dominguez et al → H&R Rock LLC; 2009-11-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Felipe  Dominguez et al → B & F Rock; 2009-11-04 to 2024-09-10; source msha-controller-operator-history
- **controller_controls_operator:** Baltazar  Higareda et al → B & F Rock; 2009-11-04 to 2024-09-10; source msha-controller-operator-history
- **operator_operates_mine:** H&R Rock LLC → H&R Rock LLC; 2024-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Francisco Javier  Rivera → H&R Rock LLC; 2024-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francisco Javier  Rivera → H&R Rock LLC; 2024-09-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan  Hernandez → H&R Rock LLC; 2024-09-11 to current/open; source msha-controller-operator-history