# Relationship history for MSHA mine 4605592

Current hierarchy: **Core Natural Resources Inc → Anker West Virginia Mining Company Inc → Baylor Mine**

- 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:** CSX Corp → Baylor Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** New River Company → Baylor Mine; 1977-08-01 to 1986-12-31; source msha-controller-operator-history
- **controller_controls_operator:** CSX Corp → New River Company; 1977-08-01 to 1986-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Shenandoah Minerals Corp → Baylor Mine; 1987-01-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_mine:** SMC Holding Corp → Baylor Mine; 1987-01-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_operator:** SMC Holding Corp → Shenandoah Minerals Corp; 1987-01-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Anker Group Inc → Baylor Mine; 1990-07-17 to 2005-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Baylor Mining Inc → Baylor Mine; 1993-01-01 to 1997-01-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert L  Worley → Baylor Mine; 1993-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Worley → Baylor Mining Inc; 1993-01-01 to 1997-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Anker West Virginia Mining Company Inc → Baylor Mine; 1997-02-01 to 1999-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Anker West Virginia Mining Company Inc; 1997-02-01 to 1999-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Baylor Mining Inc → Baylor Mine; 1999-07-05 to 2001-06-28; source msha-controller-operator-history
- **controller_controls_operator:** Robert L  Worley → Baylor Mining Inc; 1999-07-05 to 2001-06-28; source msha-controller-operator-history
- **operator_operates_mine:** Anker West Virginia Mining Company Inc → Baylor Mine; 2001-06-29 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Anker West Virginia Mining Company Inc; 2001-06-29 to 2001-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Eccles Energy Inc → Baylor Mine; 2001-08-01 to 2002-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Jason  Dancy → Baylor Mine; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jason  Dancy → Eccles Energy Inc; 2001-08-01 to 2002-02-11; source msha-controller-operator-history
- **controller_controls_mine:** Brett A  Thomas → Baylor Mine; 2001-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Anker West Virginia Mining Company, Inc. → Baylor Mine; 2002-02-12 to 2002-02-25; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Anker West Virginia Mining Company, Inc.; 2002-02-12 to 2002-02-25; source msha-controller-operator-history
- **operator_operates_mine:** Teddy Coal Company → Baylor Mine; 2002-02-26 to 2002-07-14; source msha-controller-operator-history
- **controller_controls_operator:** Brett A  Thomas → Teddy Coal Company; 2002-02-26 to 2002-07-14; source msha-controller-operator-history
- **operator_operates_mine:** Anker West Virginia Mining Company Inc → Baylor Mine; 2002-07-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Anker West Virginia Mining Company Inc; 2002-07-15 to 2005-05-31; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Baylor Mine; 2005-06-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Anker West Virginia Mining Company Inc; 2005-06-01 to 1999-07-04; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Anker West Virginia Mining Company Inc; 2005-06-01 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Anker West Virginia Mining Company, Inc.; 2005-06-01 to 2002-02-25; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Anker West Virginia Mining Company Inc; 2005-06-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Baylor Mine; 2011-06-15 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Anker West Virginia Mining Company Inc; 2011-06-15 to 1999-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Anker West Virginia Mining Company Inc; 2011-06-15 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Anker West Virginia Mining Company, Inc.; 2011-06-15 to 2002-02-25; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Anker West Virginia Mining Company Inc; 2011-06-15 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Core Natural Resources Inc → Baylor Mine; 2025-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Anker West Virginia Mining Company Inc; 2025-01-14 to 1999-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Anker West Virginia Mining Company Inc; 2025-01-14 to 2001-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Anker West Virginia Mining Company, Inc.; 2025-01-14 to 2002-02-25; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Anker West Virginia Mining Company Inc; 2025-01-14 to current/open; source msha-controller-operator-history