Insulating Oil market size is projected to reach USD 3.4 billion by 2026 at a CAGR of 6.6% from USD 2 billion in 2021 during the Forecast to 2028. Insulating Oil Market, by Oil Type (Mineral (Naphthenic, Paraffinic), Silicone, Bio-based), Application (Transformer, Switchgear, Reactor), End User (Transmission & Distribution, Power Generation, Railways & Metros) and Geography (North...