# Relationship history for MSHA mine 4406980

Current hierarchy: **Robert H  Burton → White Oak Tetons, LLC. → No. 1**

- 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:** Kenneth L  Stacy → No. 1; 1999-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Compac Inc → No. 1; 2000-01-01 to 2002-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Compac Inc; 2000-01-01 to 2002-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Stacy → No. 1; 2000-05-09 to 2006-03-22; source msha-controller-operator-history
- **operator_operates_mine:** Kentar Energy Company → No. 1; 2002-06-01 to 2004-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Kentar Energy Company; 2002-06-01 to 2004-09-19; source msha-controller-operator-history
- **operator_operates_mine:** White Oak Tetons, LLC. → No. 1; 2004-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Robert H  Burton → No. 1; 2004-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert H  Burton → White Oak Tetons, LLC.; 2004-09-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → No. 1; 2006-03-23 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Kentar Energy Company; 2006-03-23 to 2004-09-19; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → No. 1; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Kentar Energy Company; 2009-04-30 to 2004-09-19; source msha-controller-operator-history