# Relationship history for MSHA mine 1519068

Current hierarchy: **Steve  Allen; Philip  Marsh → Liberty Management, LLC → Liberty Management #8**

- 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:** Jeffery A  Hoops → Liberty Management #8; 2001-03-01 to 2008-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery A  Hoops → Liberty Management #8; 2005-04-04 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Big Elk Mining Co LLC → Liberty Management #8; 2006-12-11 to 2007-04-12; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Big Elk Mining Co LLC; 2006-12-11 to 2007-04-12; source msha-controller-operator-history
- **operator_operates_mine:** Frasure Creek Mining, LLC. → Liberty Management #8; 2007-04-13 to 2015-12-20; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery A  Hoops → Frasure Creek Mining, LLC.; 2007-04-13 to 2008-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth W  Woodring → Liberty Management #8; 2008-11-01 to 2010-04-06; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth W  Woodring → Frasure Creek Mining, LLC.; 2008-11-01 to 2010-04-06; source msha-controller-operator-history
- **controller_controls_mine:** Essar Minerals Canada Limited → Liberty Management #8; 2010-04-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Essar Minerals Canada Limited → Frasure Creek Mining, LLC.; 2010-04-07 to 2015-12-20; source msha-controller-operator-history
- **controller_controls_mine:** Philip  Marsh et al → Liberty Management #8; 2015-02-13 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Liberty Management, LLC → Liberty Management #8; 2015-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Philip  Marsh et al → Liberty Management, LLC; 2015-12-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Steve  Allen et al → Liberty Management, LLC; 2015-12-21 to current/open; source msha-controller-operator-history