# Relationship history for MSHA mine 4607812

Current hierarchy: **Cleveland-Cliffs Inc → Extra Energy, Inc. → Roadfork Strip & Auger**

- 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:** Extra Energy Inc → Roadfork Strip & Auger; 1989-11-01 to 1990-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Steven W  Haynes et al → Roadfork Strip & Auger; 1989-11-01 to 2008-09-15; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Extra Energy Inc; 1989-11-01 to 1990-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Strip & Auger; 1990-08-01 to 1991-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Phillip H  Edwards → Roadfork Strip & Auger; 1990-08-01 to 1991-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Phillip H  Edwards → Extra Energy Inc; 1990-08-01 to 1991-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Strip & Auger; 1992-01-01 to 1993-09-12; source msha-controller-operator-history
- **controller_controls_mine:** Dencil  Arnett → Roadfork Strip & Auger; 1992-01-01 to 1993-09-12; source msha-controller-operator-history
- **controller_controls_operator:** Dencil  Arnett → Extra Energy Inc; 1992-01-01 to 1993-09-12; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Strip & Auger; 1993-09-13 to 1994-05-24; source msha-controller-operator-history
- **controller_controls_mine:** Mike  Vines → Roadfork Strip & Auger; 1993-09-13 to 1994-05-24; source msha-controller-operator-history
- **controller_controls_operator:** Mike  Vines → Extra Energy Inc; 1993-09-13 to 1994-05-24; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Strip & Auger; 1994-05-25 to 2005-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Extra Energy Inc; 1994-05-25 to 2005-02-27; source msha-controller-operator-history
- **operator_operates_mine:** Raleigh Steel Construction Inc. → Roadfork Strip & Auger; 2005-02-28 to 2007-11-25; source msha-controller-operator-history
- **controller_controls_mine:** Donna  Zandlo et al → Roadfork Strip & Auger; 2005-02-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donna  Zandlo et al → Raleigh Steel Construction Inc.; 2005-02-28 to 2007-11-25; source msha-controller-operator-history
- **controller_controls_operator:** Judith  Smith et al → Raleigh Steel Construction Inc.; 2005-02-28 to 2007-11-25; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy, Inc. → Roadfork Strip & Auger; 2007-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Extra Energy, Inc.; 2007-11-26 to 2008-09-15; source msha-controller-operator-history
- **controller_controls_mine:** ArcelorMittal → Roadfork Strip & Auger; 2008-09-16 to 2020-12-08; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Extra Energy Inc; 2008-09-16 to 1990-07-31; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Extra Energy Inc; 2008-09-16 to 2005-02-27; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Extra Energy, Inc.; 2008-09-16 to 2020-12-08; source msha-controller-operator-history
- **controller_controls_mine:** Cleveland-Cliffs Inc → Roadfork Strip & Auger; 2020-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Extra Energy Inc; 2020-12-09 to 1990-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Extra Energy Inc; 2020-12-09 to 2005-02-27; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Extra Energy, Inc.; 2020-12-09 to current/open; source msha-controller-operator-history