# Relationship history for MSHA mine 3401840

Current hierarchy: **Peter R  Dawson → TBK MATERIALS LLC → BUTLER**

- 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:** Rodney  Vilhauer → BUTLER; 1998-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Western Plains Resources Inc → BUTLER; 2000-01-01 to 2007-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Vilhauer → Western Plains Resources Inc; 2000-01-01 to 2007-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Rodman, LLC → BUTLER; 2008-01-01 to 2010-06-24; source msha-controller-operator-history
- **controller_controls_mine:** Rodney  Vilhauer → BUTLER; 2008-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodney  Vilhauer → Rodman, LLC; 2008-01-01 to 2010-06-24; source msha-controller-operator-history
- **operator_operates_mine:** TBK MATERIALS LLC → BUTLER; 2010-06-25 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Tina  Rich → BUTLER; 2010-06-25 to 2013-04-11; source msha-controller-operator-history
- **controller_controls_operator:** Tina  Rich → TBK MATERIALS LLC; 2010-06-25 to 2013-04-11; source msha-controller-operator-history
- **controller_controls_mine:** Peter R  Dawson → BUTLER; 2013-04-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter R  Dawson → TBK MATERIALS LLC; 2013-04-12 to current/open; source msha-controller-operator-history