# Relationship history for MSHA mine 1518631

Current hierarchy: **Jeffrey  McGuire → Leprechaun Coal → #1**

- 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:** Brian  Jones → #1; 2002-09-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Dennis Mining LLC → #1; 2003-05-19 to 2004-05-02; source msha-controller-operator-history
- **controller_controls_operator:** Brian  Jones → Dennis Mining LLC; 2003-05-19 to 2004-05-02; source msha-controller-operator-history
- **operator_operates_mine:** Leprechaun Coal → #1; 2004-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey  McGuire → #1; 2004-05-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey  McGuire → Leprechaun Coal; 2004-05-03 to current/open; source msha-controller-operator-history