# Relationship history for MSHA mine 2003639

Current hierarchy: **Curtis Patrick Moran Jr → CPMJR LLC   DBA Great Lakes Excavating Services → RM105003D**

- 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:** CPMJR LLC   DBA Great Lakes Excavating Services → RM105003D; 2023-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Curtis Patrick Moran Jr → RM105003D; 2023-01-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Curtis Patrick Moran Jr → CPMJR LLC   DBA Great Lakes Excavating Services; 2023-01-16 to current/open; source msha-controller-operator-history