# Relationship history for MSHA mine 1518844

Current hierarchy: **Brent E  Reed → J.R. Mining, Inc. → Helton Branch**

- 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:** Brent E  Reed → Helton Branch; 2002-03-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J.R. Mining, Inc. → Helton Branch; 2005-02-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brent E  Reed → J.R. Mining, Inc.; 2005-02-08 to current/open; source msha-controller-operator-history