NorthWestern Q1 net income down 18% YoY; merger with Black Hills on track for H2 2026

BLACK HILLS CORP /SD/

NorthWestern Q1 2026 net income $63.5M ($1.03 diluted EPS) vs $76.9M ($1.25) YoY.
Revenue $497.6M, up 6.6% YoY from $466.6M, on higher electric and gas revenue.
Merger with Black Hills: shareholders approved in Apr 2026; HSR period expired; settlements in NE, MT, SD filed.
Regulatory approvals pending from MPSC, NPSC, SDPUC, and FERC; hearings scheduled in Q2 2026.
Colstrip acquisitions (Avista/Puget interests) closed Jan 1, 2026; interim PCCAM waiver approved.

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