# Relationship history for MSHA mine 1100628

Current hierarchy: **Jeffrey A  Haycraft → Pittsburgh Energy LLC → Orient #4 Mine**

- 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

- **operator_operates_mine:** Freeman United Coal Mining Company → Orient #4 Mine; 1950-01-01 to 1997-09-30; source msha-controller-operator-history
- **controller_controls_mine:** General Dynamics Corp → Orient #4 Mine; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** General Dynamics Corp → Freeman United Coal Mining Company; 1950-01-01 to 1997-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Gloria  Sickmeier → Orient #4 Mine; 1989-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Mid-Continental Fuels Incorporated → Orient #4 Mine; 1997-10-01 to 2006-03-14; source msha-controller-operator-history
- **controller_controls_operator:** Gloria  Sickmeier → Mid-Continental Fuels Incorporated; 1997-10-01 to 2006-03-14; source msha-controller-operator-history
- **operator_operates_mine:** Freeman United Coal Mining Company → Orient #4 Mine; 2006-03-15 to 2007-08-31; source msha-controller-operator-history
- **controller_controls_operator:** General Dynamics Corp → Freeman United Coal Mining Company; 2006-03-15 to 2007-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Springfield Coal Company, LLC → Orient #4 Mine; 2007-09-01 to 2008-04-30; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Veldhuizen et al → Orient #4 Mine; 2007-09-01 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Springfield Coal Company, LLC; 2007-09-01 to 2008-04-30; source msha-controller-operator-history
- **operator_operates_mine:** Pittsburgh Energy LLC → Orient #4 Mine; 2008-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Veldhuizen et al → Orient #4 Mine; 2008-05-01 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Pittsburgh Energy LLC; 2008-05-01 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey A  Haycraft → Orient #4 Mine; 2015-08-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Springfield Coal Company, LLC; 2015-08-11 to 2008-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Pittsburgh Energy LLC; 2015-08-11 to current/open; source msha-controller-operator-history