# Relationship history for MSHA mine 4407207

Current hierarchy: **Industrial Minerals Group LLC → Inmet Mining, LLC → Middle Splint**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Progress Energy Inc → Middle Splint; 2000-11-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Powell Mountain Coal Co Inc → Middle Splint; 2007-08-28 to 2008-03-06; source msha-controller-operator-history
- **controller_controls_operator:** Progress Energy Inc → Powell Mountain Coal Co Inc; 2007-08-28 to 2008-03-06; source msha-controller-operator-history
- **operator_operates_mine:** Powell Mountain Energy, LLC → Middle Splint; 2008-03-07 to 2022-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Karat Acquisition LLC → Middle Splint; 2008-03-07 to 2008-05-26; source msha-controller-operator-history
- **controller_controls_operator:** Karat Acquisition LLC → Powell Mountain Energy, LLC; 2008-03-07 to 2008-05-26; source msha-controller-operator-history
- **controller_controls_mine:** International Coal Group Inc (ICG) → Middle Splint; 2008-05-27 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_operator:** International Coal Group Inc (ICG) → Powell Mountain Energy, LLC; 2008-05-27 to 2011-06-14; source msha-controller-operator-history
- **controller_controls_mine:** Arch Resources Inc → Middle Splint; 2011-06-15 to 2017-09-13; source msha-controller-operator-history
- **controller_controls_operator:** Arch Resources Inc → Powell Mountain Energy, LLC; 2011-06-15 to 2017-09-13; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → Middle Splint; 2017-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Powell Mountain Energy, LLC; 2017-09-14 to 2022-07-18; source msha-controller-operator-history
- **controller_controls_mine:** Industrial Minerals Group LLC → Middle Splint; 2019-09-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Inmet Mining, LLC → Middle Splint; 2022-07-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Industrial Minerals Group LLC → Inmet Mining, LLC; 2022-07-19 to current/open; source msha-controller-operator-history