# Relationship history for MSHA mine 1517910

Current hierarchy: **Lexington Coal Company LLC → LCC Kentucky LLC → Evan's Fork**

- 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:** Horizon Natural Resources Incorporated → Evan's Fork; 1986-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Addington Mining, Inc → Evan's Fork; 1997-03-01 to 2002-07-29; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Addington Mining, Inc; 1997-03-01 to 2002-07-29; source msha-controller-operator-history
- **operator_operates_mine:** Horizon Natural Resources Mining, Inc. → Evan's Fork; 2002-07-30 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Evan's Fork; 2002-07-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Horizon Natural Resources Mining, Inc.; 2002-07-30 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** LCC Kentucky LLC → Evan's Fork; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Company LLC → Evan's Fork; 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 current/open; source msha-controller-operator-history