# Relationship history for MSHA mine 4002818

Current hierarchy: **Lexington Coal Company LLC → LCC Tennessee, LLC → Conrich Wash Plant**

- 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:** Lee  Congleton → Conrich Wash Plant; 1978-05-01 to 1990-08-09; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery Gary A → Conrich Wash Plant; 1979-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Conrich-Tennessee Inc → Conrich Wash Plant; 1982-12-01 to 1990-08-09; source msha-controller-operator-history
- **controller_controls_operator:** Lee  Congleton → Conrich-Tennessee Inc; 1982-12-01 to 1990-08-09; source msha-controller-operator-history
- **operator_operates_mine:** Tri-J Coal Company Inc → Conrich Wash Plant; 1990-08-10 to 1995-08-30; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery Gary A → Tri-J Coal Company Inc; 1990-08-10 to 1995-08-30; source msha-controller-operator-history
- **controller_controls_mine:** Doug D  Moore → Conrich Wash Plant; 1995-06-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tennessee Mining Inc → Conrich Wash Plant; 1995-08-31 to 1995-11-02; source msha-controller-operator-history
- **controller_controls_operator:** Doug D  Moore → Tennessee Mining Inc; 1995-08-31 to 1995-11-02; source msha-controller-operator-history
- **operator_operates_mine:** Tennessee Mining Inc → Conrich Wash Plant; 1995-11-03 to 2007-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Conrich Wash Plant; 1995-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Tennessee Mining Inc; 1995-11-03 to 2007-04-18; source msha-controller-operator-history
- **controller_controls_mine:** Lexington Coal Company LLC → Conrich Wash Plant; 2004-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** LCC Tennessee, LLC → Conrich Wash Plant; 2007-04-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lexington Coal Company LLC → LCC Tennessee, LLC; 2007-04-19 to current/open; source msha-controller-operator-history