# Relationship history for MSHA mine 3304762

Current hierarchy: **Daniel  Boyce; Darlene S  Boyce → Toboso Ag LLC → Toboso Ag 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Toboso Ag LLC → Toboso Ag LLC; 2022-01-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Donald  Boyce et al → Toboso Ag LLC; 2022-01-11 to 2023-11-10; source msha-controller-operator-history
- **controller_controls_operator:** Donald  Boyce et al → Toboso Ag LLC; 2022-01-11 to 2023-11-10; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Boyce et al → Toboso Ag LLC; 2022-01-11 to 2023-11-10; source msha-controller-operator-history
- **controller_controls_mine:** Darlene S  Boyce et al → Toboso Ag LLC; 2023-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darlene S  Boyce et al → Toboso Ag LLC; 2023-11-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Boyce et al → Toboso Ag LLC; 2023-11-11 to current/open; source msha-controller-operator-history