# Relationship history for MSHA mine 4608637

Current hierarchy: **Sev.en Global Investments a.s. → Rockwell Mining LLC → Campbells Creek No 10 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:** Long Branch Energy Corporation → Campbells Creek No 10 Mine; 1989-03-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Long Branch Energy → Campbells Creek No 10 Mine; 1997-04-01 to 2012-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Long Branch Energy Corporation → Long Branch Energy; 1997-04-01 to 2012-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Patriot Coal Corporation → Campbells Creek No 10 Mine; 2011-08-17 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Gateway Eagle Coal Company, LLC → Campbells Creek No 10 Mine; 2012-02-24 to 2015-10-25; source msha-controller-operator-history
- **controller_controls_operator:** Patriot Coal Corporation → Gateway Eagle Coal Company, LLC; 2012-02-24 to 2015-10-25; source msha-controller-operator-history
- **operator_operates_mine:** Rockwell Mining LLC → Campbells Creek No 10 Mine; 2015-10-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Blackhawk Mining LLC → Campbells Creek No 10 Mine; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_operator:** Blackhawk Mining LLC → Rockwell Mining LLC; 2015-10-26 to 2020-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Sev.en Global Investments a.s. → Campbells Creek No 10 Mine; 2020-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sev.en Global Investments a.s. → Rockwell Mining LLC; 2020-06-01 to current/open; source msha-controller-operator-history