# Relationship history for MSHA mine 1519021

Current hierarchy: **Ryan  Johns → Rhyno Corp LLC → Long Fork 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:** Stewart Resources, LLC → Long Fork Mine; 2007-02-20 to 2008-06-12; source msha-controller-operator-history
- **controller_controls_mine:** Gabriel J  Stewart → Long Fork Mine; 2007-02-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gabriel J  Stewart → Stewart Resources, LLC; 2007-02-20 to 2008-06-12; source msha-controller-operator-history
- **operator_operates_mine:** Viking Mining, LLC → Long Fork Mine; 2008-06-13 to 2010-07-25; source msha-controller-operator-history
- **controller_controls_mine:** Robert  Williams et al → Long Fork Mine; 2008-06-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Williams et al → Viking Mining, LLC; 2008-06-13 to 2010-07-25; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Viking Mining, LLC; 2008-06-13 to 2010-07-25; source msha-controller-operator-history
- **operator_operates_mine:** Viking Acquisition Group, LLC → Long Fork Mine; 2010-07-26 to 2012-12-09; source msha-controller-operator-history
- **controller_controls_mine:** David D  Bundy et al → Long Fork Mine; 2010-07-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** David D  Bundy et al → Viking Acquisition Group, LLC; 2010-07-26 to 2012-12-09; source msha-controller-operator-history
- **controller_controls_operator:** Perian  Salviola et al → Viking Acquisition Group, LLC; 2010-07-26 to 2012-12-09; source msha-controller-operator-history
- **controller_controls_mine:** Ryan  Johns → Long Fork Mine; 2011-08-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J & J Minerals, LLC → Long Fork Mine; 2012-12-10 to 2013-05-16; source msha-controller-operator-history
- **controller_controls_mine:** Andrew  Johnson → Long Fork Mine; 2012-12-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Andrew  Johnson → J & J Minerals, LLC; 2012-12-10 to 2013-05-16; source msha-controller-operator-history
- **operator_operates_mine:** Rhyno Corp LLC → Long Fork Mine; 2013-05-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ryan  Johns → Rhyno Corp LLC; 2013-05-17 to current/open; source msha-controller-operator-history