The global transformer oil market is projected to grow from USD 4.3 billion in 2023 to USD 10.1 billion by 2033, with a robust CAGR of 8.5% over the forecast period. This growth is driven by the increasing demand for long-distance transmission lines and the expansion of electric grids, particularly in Asia Pacific, which holds 55% of the global market share. The rising need for ultra-high voltage power transformers due to long-distance and high-voltage transmission is propelling market growth. As the demand for reliable and efficient electricity transmission intensifies, fueled by global energy needs and the shift towards renewable sources, transformer oil's role in cooling and insulating electrical components becomes increasingly critical.