# Relationship history for MSHA mine 4608961

Current hierarchy: **Alpha Metallurgical Resources Inc → Alex Energy LLC → Marmet Dock**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **controller_controls_mine:** Massey Energy Company → Marmet Dock; 1997-10-20 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Progress Energy Inc → Marmet Dock; 2000-11-30 to 2008-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Marmet Synfuel LLC → Marmet Dock; 2002-05-16 to 2008-07-20; source msha-controller-operator-history
- **controller_controls_mine:** Progress Energy Inc → Marmet Dock; 2002-05-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Progress Energy Inc → Marmet Synfuel LLC; 2002-05-16 to 2008-07-20; source msha-controller-operator-history
- **controller_controls_mine:** Traxys North America LLC et al → Marmet Dock; 2008-05-01 to 2013-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Kanawha River Terminals LLC → Marmet Dock; 2008-07-21 to 2010-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Traxys North America LLC et al → Kanawha River Terminals LLC; 2008-07-21 to 2010-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Pegasus Capital Advisors LP et al → Kanawha River Terminals LLC; 2008-07-21 to 2010-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Progress Energy Inc → Kanawha River Terminals LLC; 2008-07-21 to 2008-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Alex Energy LLC → Marmet Dock; 2010-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Massey Energy Company → Alex Energy LLC; 2010-07-28 to 2011-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources, Inc. → Marmet Dock; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources, Inc. → Alex Energy LLC; 2011-06-01 to 2016-07-25; source msha-controller-operator-history
- **controller_controls_mine:** SunCoke Energy Incorporated → Marmet Dock; 2013-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Kanawha River Terminals LLC; 2013-10-01 to 2010-07-27; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Natural Resources Holdings, Inc → Marmet Dock; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Natural Resources Holdings, Inc → Alex Energy LLC; 2016-07-26 to 2018-11-08; source msha-controller-operator-history
- **controller_controls_mine:** Alpha Metallurgical Resources Inc → Marmet Dock; 2018-11-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alpha Metallurgical Resources Inc → Alex Energy LLC; 2018-11-09 to current/open; source msha-controller-operator-history