# Relationship history for MSHA mine 4608278

Current hierarchy: **Cleveland-Cliffs Inc → Prime Processing Inc → Roadfork Loadout**

- 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:** Steven W  Haynes et al → Roadfork Loadout; 1989-11-01 to 2008-09-15; source msha-controller-operator-history
- **controller_controls_mine:** Dencil  Arnett → Roadfork Loadout; 1992-01-01 to 1993-09-12; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Loadout; 1993-02-01 to 1993-09-12; source msha-controller-operator-history
- **controller_controls_operator:** Dencil  Arnett → Extra Energy Inc; 1993-02-01 to 1993-09-12; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy Inc → Roadfork Loadout; 1993-09-13 to 1994-05-24; source msha-controller-operator-history
- **controller_controls_mine:** Mike  Vines → Roadfork Loadout; 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 Loadout; 1994-05-25 to 1998-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Extra Energy Inc; 1994-05-25 to 1998-08-02; source msha-controller-operator-history
- **controller_controls_mine:** Nancy K  Preservati et al → Roadfork Loadout; 1997-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Horizon Natural Resources Incorporated → Roadfork Loadout; 1997-11-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Premium Processing Incorporated → Roadfork Loadout; 1998-08-03 to 2004-06-10; source msha-controller-operator-history
- **controller_controls_operator:** Horizon Natural Resources Incorporated → Premium Processing Incorporated; 1998-08-03 to 2004-06-10; source msha-controller-operator-history
- **operator_operates_mine:** Extra Energy, Inc. → Roadfork Loadout; 2004-06-11 to 2004-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Extra Energy, Inc.; 2004-06-11 to 2004-07-04; source msha-controller-operator-history
- **operator_operates_mine:** Regal Rock, Inc. → Roadfork Loadout; 2004-07-05 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Nancy K  Preservati et al → Regal Rock, Inc.; 2004-07-05 to 2004-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Richard G  Preservati et al → Regal Rock, Inc.; 2004-07-05 to 2004-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Prime Processing Inc → Roadfork Loadout; 2004-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Steven W  Haynes et al → Roadfork Loadout; 2004-10-01 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Steven W  Haynes et al → Prime Processing Inc; 2004-10-01 to 2008-06-30; source msha-controller-operator-history
- **controller_controls_mine:** ArcelorMittal → Roadfork Loadout; 2008-07-01 to 2020-12-08; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Prime Processing Inc; 2008-07-01 to 2020-12-08; source msha-controller-operator-history
- **controller_controls_mine:** ArcelorMittal → Roadfork Loadout; 2008-09-16 to 2020-12-08; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Extra Energy Inc; 2008-09-16 to 1998-08-02; source msha-controller-operator-history
- **controller_controls_operator:** ArcelorMittal → Extra Energy, Inc.; 2008-09-16 to 2004-07-04; source msha-controller-operator-history
- **controller_controls_mine:** Cleveland-Cliffs Inc → Roadfork Loadout; 2020-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Extra Energy Inc; 2020-12-09 to 1998-08-02; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Extra Energy, Inc.; 2020-12-09 to 2004-07-04; source msha-controller-operator-history
- **controller_controls_operator:** Cleveland-Cliffs Inc → Prime Processing Inc; 2020-12-09 to current/open; source msha-controller-operator-history