# Relationship history for MSHA mine 1518912

Current hierarchy: **Robert E  Murray → KenAmerican Resources, Inc. → Island Dock**

- 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:** Donald E  Bowles → Island Dock; 1977-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert E  Murray → Island Dock; 1994-10-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Charolais Corporation → Island Dock; 2005-07-29 to 2006-12-26; source msha-controller-operator-history
- **controller_controls_operator:** Donald E  Bowles → Charolais Corporation; 2005-07-29 to 2006-12-26; source msha-controller-operator-history
- **controller_controls_mine:** Phoenix Coal Corporation → Island Dock; 2006-12-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Phoenix Coal Processing Company LLC → Island Dock; 2006-12-27 to 2009-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Phoenix Coal Corporation → Phoenix Coal Processing Company LLC; 2006-12-27 to 2009-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Oxford Mining Company-Kentucky, LLC → Island Dock; 2009-10-01 to 2014-04-10; source msha-controller-operator-history
- **controller_controls_mine:** Charles C  Ungurean → Island Dock; 2009-10-01 to 2014-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Charles C  Ungurean → Oxford Mining Company-Kentucky, LLC; 2009-10-01 to 2014-04-10; source msha-controller-operator-history
- **operator_operates_mine:** KenAmerican Resources, Inc. → Island Dock; 2014-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Murray → KenAmerican Resources, Inc.; 2014-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Westmoreland Coal Company → Island Dock; 2015-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Westmoreland Coal Company → Oxford Mining Company-Kentucky, LLC; 2015-01-01 to 2014-04-10; source msha-controller-operator-history