PKN Orlen, a Polish oil refiner and petrol retailer, agreed to acquire Nowotna Farma Wiatrowa, an owner of onshore wind farms in Kobylnica, Subkowy and Nowotna with a total power of 89,4 MW, from Taiga Mistral, a private equity management company, and Santander Energias Renovables for $97m. The deal is subject to antitrust clearance.