# Relationship history for MSHA mine 4609297

Current hierarchy: **Sev.en Global Investments a.s. → Blue Creek Mining, LLC → Blue Creek No. 1 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Magnum Coal Company → Blue Creek No. 1 UG Mine; 2007-08-15 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Magnum Coal Company → Blue Creek No. 1 UG Mine; 2008-03-18 to 2008-07-22; source msha-controller-operator-history
- **operator_operates_mine:** Coyote Coal Company LLC → Blue Creek No. 1 UG Mine; 2008-07-18 to 2008-11-11; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Coyote Coal Company LLC; 2008-07-18 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Blue Creek No. 1 UG Mine; 2008-07-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Coyote Coal Company LLC; 2008-07-23 to 2008-11-11; source msha-controller-operator-history
- **operator_operates_mine:** Midland Trail Energy LLC → Blue Creek No. 1 UG Mine; 2008-11-12 to 2015-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Magnum Coal Company → Midland Trail Energy LLC; 2008-11-12 to 2008-07-22; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Midland Trail Energy LLC; 2008-11-12 to 2015-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Blue Creek Mining, LLC → Blue Creek No. 1 UG Mine; 2015-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → Blue Creek No. 1 UG Mine; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Blue Creek Mining, LLC; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sev.en Global Investments a.s. → Blue Creek No. 1 UG Mine; 2020-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Blue Creek Mining, LLC; 2020-06-01 to current/open; source msha-controller-operator-history