# Relationship history for MSHA mine 2103970

Current hierarchy: **Joleen  Niles → JJD Companies LLC → #2001 Screener**

- 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:** JJD Companies LLC → #2001 Screener; 2020-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Joleen  Niles → #2001 Screener; 2020-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joleen  Niles → JJD Companies LLC; 2020-04-21 to current/open; source msha-controller-operator-history