# Relationship history for MSHA mine 4609230

Current hierarchy: **Sev.en Global Investments a.s. → Panther Creek Mining LLC → Winchester UG Mine**

- 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:** Magnum Coal Company → Winchester UG Mine; 2003-07-03 to 2008-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Remington LLC → Winchester UG Mine; 2007-09-13 to 2015-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Remington LLC; 2007-09-13 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Winchester UG Mine; 2008-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Remington LLC; 2008-07-23 to 2015-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Panther Creek Mining LLC → Winchester UG Mine; 2015-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → Winchester UG Mine; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Panther Creek Mining LLC; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sev.en Global Investments a.s. → Winchester UG Mine; 2020-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Panther Creek Mining LLC; 2020-06-01 to current/open; source msha-controller-operator-history