# Relationship history for MSHA mine 3003319

Current hierarchy: **Everest T  Tatko; Raymond W  Tatko → E&R Tatko Slate Inc. → E&R Tatko Slate Inc.**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** E&R Tatko Slate Inc. → E&R Tatko Slate Inc.; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Raymond W  Tatko Et Al → E&R Tatko Slate Inc.; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond W  Tatko Et Al → E&R Tatko Slate Inc.; 2000-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Everest T  Tatko Et Al → E&R Tatko Slate Inc.; 2000-03-01 to current/open; source msha-controller-operator-history