# Relationship history for MSHA mine 0103569

Current hierarchy: **Donny  Raughton → Al Rock Inc. → Al Rock Pit**

- 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:** Al Rock Inc. → Al Rock Pit; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Donny  Raughton → Al Rock Pit; 2022-09-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donny  Raughton → Al Rock Inc.; 2022-09-07 to current/open; source msha-controller-operator-history