# Relationship history for MSHA mine 1511667

Current hierarchy: **Arch Resources Inc → ICG Hazard, LLC → Bessie Tipple**

- 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

- **operator_operates_mine:** Krypton Coal Company → Bessie Tipple; 1977-08-01 to 1980-02-21; source msha-controller-operator-history
- **controller_controls_mine:** Bunn Omer M → Bessie Tipple; 1977-08-01 to 1980-02-21; source msha-controller-operator-history
- **controller_controls_operator:** Bunn Omer M → Krypton Coal Company; 1977-08-01 to 1980-02-21; source msha-controller-operator-history
- **operator_operates_mine:** K & K Enterprises → Bessie Tipple; 1980-02-22 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_mine:** Kem Coal Company Inc & Kresco Inc → Bessie Tipple; 1980-02-22 to 1981-06-24; source msha-controller-operator-history
- **controller_controls_operator:** Kem Coal Company Inc & Kresco Inc → K & K Enterprises; 1980-02-22 to 1981-06-24; source msha-controller-operator-history
- **operator_operates_mine:** Kem Coal Inc → Bessie Tipple; 1981-06-25 to 1992-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Kaneb Services Inc → Bessie Tipple; 1981-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kaneb Services Inc → Kem Coal Inc; 1981-06-25 to 1992-03-29; source msha-controller-operator-history
- **controller_controls_mine:** Vires Darrell & Leo → Bessie Tipple; 1982-09-01 to 2001-04-06; source msha-controller-operator-history
- **operator_operates_mine:** Vires Coal Sales Inc → Bessie Tipple; 1992-03-30 to 1998-05-27; source msha-controller-operator-history
- **controller_controls_operator:** Vires Darrell & Leo → Vires Coal Sales Inc; 1992-03-30 to 1998-05-27; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Bessie Tipple; 1998-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Leslie Resources Inc → Bessie Tipple; 1998-05-28 to 2007-05-29; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Leslie Resources Inc; 1998-05-28 to 2007-05-29; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Bessie Tipple; 2004-10-02 to 2011-06-14; source msha-controller-operator-history
- **operator_operates_mine:** ICG Hazard, LLC → Bessie Tipple; 2007-05-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → ICG Hazard, LLC; 2007-05-30 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Bessie Tipple; 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