# Relationship history for MSHA mine 4407040

Current hierarchy: **Metinvest B V → Surface Minerals Company → Convict Hollow**

- 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

- **controller_controls_mine:** Kenneth L  Stacy → Convict Hollow; 1999-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth L  Stacy → Convict Hollow; 2001-08-01 to 2006-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Compac Inc → Convict Hollow; 2001-11-21 to 2004-09-19; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Compac Inc; 2001-11-21 to 2004-09-19; source msha-controller-operator-history
- **operator_operates_mine:** White Oak Tetons, LLC. → Convict Hollow; 2004-09-20 to 2006-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Robert H  Burton → Convict Hollow; 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 2006-07-31; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → Convict Hollow; 2006-02-10 to 2009-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Surface Minerals Company → Convict Hollow; 2006-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Surface Minerals Company; 2006-08-01 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Surface Minerals Company; 2006-08-01 to 2006-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Convict Hollow; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Surface Minerals Company; 2009-04-30 to current/open; source msha-controller-operator-history