# Relationship history for MSHA mine 1515506

Current hierarchy: **Arch Resources Inc → ICG Hazard, LLC → Middle Fork Surface**

- 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:** Greg  Wells → Middle Fork Surface; 1983-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Resources Inc → Middle Fork Surface; 1986-01-01 to 1998-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Greg  Wells → Leslie Resources Inc; 1986-01-01 to 1998-03-08; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Resources Inc → Middle Fork Surface; 1998-03-09 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Middle Fork Surface; 1998-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Leslie Resources Inc; 1998-03-09 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** LCC Kentucky LLC → Middle Fork Surface; 2004-10-01 to 2007-07-19; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Company LLC → Middle Fork Surface; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Company LLC → LCC Kentucky LLC; 2004-10-01 to 2007-07-19; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Middle Fork Surface; 2004-10-02 to 2011-06-14; source msha-controller-operator-history
- **operator_operates_mine:** ICG Hazard, LLC → Middle Fork Surface; 2007-07-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → ICG Hazard, LLC; 2007-07-20 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Middle Fork Surface; 2011-06-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → ICG Hazard, LLC; 2011-06-15 to current/open; source msha-controller-operator-history