# Relationship history for MSHA mine 1100599

Current hierarchy: **Jeffrey A  Haycraft → Cheyenne Resources, INC. → Orient No 6 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Freeman United Coal Mining Company → Orient No 6 Mine; 1950-01-01 to 2007-08-31; source msha-controller-operator-history
- **controller_controls_mine:** General Dynamics Corp → Orient No 6 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 2007-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Springfield Coal Company LLC → Orient No 6 Mine; 2007-09-01 to 2010-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Veldhuizen et al → Orient No 6 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 2010-01-14; source msha-controller-operator-history
- **controller_controls_mine:** Brian J  Veldhuizen et al → Orient No 6 Mine; 2008-05-01 to 2015-08-10; source msha-controller-operator-history
- **operator_operates_mine:** Pittsburgh Energy LLC → Orient No 6 Mine; 2010-01-15 to 2010-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Pittsburgh Energy LLC; 2010-01-15 to 2010-08-19; source msha-controller-operator-history
- **operator_operates_mine:** Cheyenne Enterprises, Inc. → Orient No 6 Mine; 2010-08-20 to 2010-11-07; source msha-controller-operator-history
- **controller_controls_mine:** Gary  Bollmeier → Orient No 6 Mine; 2010-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Bollmeier → Cheyenne Enterprises, Inc.; 2010-08-20 to 2010-11-07; source msha-controller-operator-history
- **operator_operates_mine:** Pittsburgh Energy LLC → Orient No 6 Mine; 2010-11-08 to 2017-08-14; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Pittsburgh Energy LLC; 2010-11-08 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey A  Haycraft → Orient No 6 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 2010-01-14; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Pittsburgh Energy LLC; 2015-08-11 to 2010-08-19; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Pittsburgh Energy LLC; 2015-08-11 to 2017-08-14; source msha-controller-operator-history
- **operator_operates_mine:** Springfield Coal Company, LLC → Orient No 6 Mine; 2017-08-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian J  Veldhuizen et al → Springfield Coal Company, LLC; 2017-08-15 to 2015-08-10; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey A  Haycraft → Springfield Coal Company, LLC; 2017-08-15 to current/open; source msha-controller-operator-history