Basin Electric appoints Dwight Rossow as District 7 director to replace deceased Mike McQuistion

BASIN ELECTRIC POWER COOPERATIVE

Dwight Rossow appointed as director representing District 7, Rushmore Electric Power Cooperative.
Rossow fills the unexpired three-year term of Mike McQuistion, who passed away in February 2026.
Term runs until 2028; Rossow also named to Operations & Marketing Committee.
Will receive standard Board cash compensation and is eligible for Board Deferred Compensation Plan.

item 5.02

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Appointed

Dwight Rossow

Director representing District 7

BASIN ELECTRIC POWER COOPERATIVE

Effective: 2026-05-12
Successor: Mike McQuistion
Filed: May 12, 2026, 3:13 PM ET

On May 12, 2026, the Board of Directors (the “Board”) of Basin Electric Power Cooperative (“Basin Electric”) appointed Dwight Rossow as the director representing District 7, Rushmore Electric Power Cooperative, on the Board.

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Executive change SEC 8-K Item 5.02 confidence 1.0

Dwight Rossow was appointed as Director representing District 7 at BASIN ELECTRIC POWER COOPERATIVE.

Action: appointed
Role: Director representing District 7

Exact text from the filing

On May 12, 2026, the Board of Directors (the “Board”) of Basin Electric Power Cooperative (“Basin Electric”) appointed Dwight Rossow as the director representing District 7, Rushmore Electric Power Cooperative, on the Board.

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Source: SEC EDGAR

accession 0001628280-26-034044

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