# Relationship history for MSHA mine 1519272

Current hierarchy: **Michael  Blubaugh → Double Mountain Mining LLC → Lowsplint Surface**

- 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:** Gary  Asher → Lowsplint Surface; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Appolo Fuels Inc → Lowsplint Surface; 2008-07-24 to 2014-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Gary  Asher → Appolo Fuels Inc; 2008-07-24 to 2014-06-30; source msha-controller-operator-history
- **controller_controls_mine:** JW Resources Holdings Inc → Lowsplint Surface; 2014-03-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Middlesboro Mining Operations, Inc. → Lowsplint Surface; 2014-07-01 to 2016-12-27; source msha-controller-operator-history
- **controller_controls_operator:** JW Resources Holdings Inc → Middlesboro Mining Operations, Inc.; 2014-07-01 to 2016-12-27; source msha-controller-operator-history
- **operator_operates_mine:** Double Mountain Mining LLC → Lowsplint Surface; 2016-12-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Douglas  Warriner → Lowsplint Surface; 2016-12-28 to 2018-08-15; source msha-controller-operator-history
- **controller_controls_operator:** Douglas  Warriner → Double Mountain Mining LLC; 2016-12-28 to 2018-08-15; source msha-controller-operator-history
- **controller_controls_mine:** Douglas S  Warriner et al → Lowsplint Surface; 2018-08-16 to 2020-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Douglas S  Warriner et al → Double Mountain Mining LLC; 2018-08-16 to 2020-07-27; source msha-controller-operator-history
- **controller_controls_operator:** Michael A  Blubaugh et al → Double Mountain Mining LLC; 2018-08-16 to 2020-07-27; source msha-controller-operator-history
- **controller_controls_mine:** Michael  Blubaugh → Lowsplint Surface; 2020-07-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael  Blubaugh → Double Mountain Mining LLC; 2020-07-28 to current/open; source msha-controller-operator-history