# Relationship history for MSHA mine 4609060

Current hierarchy: **Core Natural Resources Inc → Wolf Run Mining LLC → No. 4 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:** Anker Group Inc → No. 4 Mine; 1990-07-17 to 2005-05-31; source msha-controller-operator-history
- **operator_operates_mine:** Wolf Run Mining Company → No. 4 Mine; 2004-09-10 to 2007-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Wolf Run Mining Company; 2004-09-10 to 2005-05-31; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → No. 4 Mine; 2005-06-01 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Wolf Run Mining Company; 2005-06-01 to 2007-05-22; source msha-controller-operator-history
- **operator_operates_mine:** Ten-Mile Coal Co., Inc. → No. 4 Mine; 2007-05-23 to 2015-07-15; source msha-controller-operator-history
- **controller_controls_mine:** David M  Maynard → No. 4 Mine; 2007-05-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David M  Maynard → Ten-Mile Coal Co., Inc.; 2007-05-23 to 2015-07-15; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → No. 4 Mine; 2011-06-15 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Wolf Run Mining Company; 2011-06-15 to 2007-05-22; source msha-controller-operator-history
- **operator_operates_mine:** Wolf Run Mining LLC → No. 4 Mine; 2015-07-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Wolf Run Mining LLC; 2015-07-16 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** Anker Group Inc → Wolf Run Mining LLC; 2015-07-16 to 2005-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Wolf Run Mining LLC; 2015-07-16 to 2025-01-13; source msha-controller-operator-history
- **controller_controls_mine:** Core Natural Resources Inc → No. 4 Mine; 2025-01-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Wolf Run Mining Company; 2025-01-14 to 2007-05-22; source msha-controller-operator-history
- **controller_controls_operator:** Core Natural Resources Inc → Wolf Run Mining LLC; 2025-01-14 to current/open; source msha-controller-operator-history