# Relationship history for MSHA mine 2902533

Current hierarchy: **Dustin James  Pettingill → Restoration Group, Inc. → Willard 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

- **controller_controls_mine:** Dustin James  Pettingill → Willard Pit; 2017-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Restoration Group, Inc. → Willard Pit; 2021-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dustin James  Pettingill → Restoration Group, Inc.; 2021-06-07 to current/open; source msha-controller-operator-history