# Relationship history for MSHA mine 0404981

Current hierarchy: **Wendel  Trappe → Canyon Rock Co., Inc → Diamond T Natural Resources, LLC**

- 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:** Wendel  Trappe → Diamond T Natural Resources, LLC; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bohan & Canelis Austin Creek Ready Mix, Inc. → Diamond T Natural Resources, LLC; 1988-11-01 to 2014-02-13; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Canelis → Diamond T Natural Resources, LLC; 1988-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Canelis → Bohan & Canelis Austin Creek Ready Mix, Inc.; 1988-11-01 to 2014-02-13; source msha-controller-operator-history
- **operator_operates_mine:** Canyon Rock Co., Inc → Diamond T Natural Resources, LLC; 2014-02-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wendel  Trappe → Canyon Rock Co., Inc; 2014-02-14 to current/open; source msha-controller-operator-history