Eastern Siberia-Pacific Ocean (ESPO) Oil is a high-quality crude oil produced in Russia’s East Siberian fields and exported via the ESPO pipeline to Asia-Pacific markets. It is a medium, low-sulfur crude known for its excellent refining properties, making it ideal for producing diesel, gasoline, and other light petroleum products. ESPO oil is highly valued for its consistency, low impurities, and strong market demand in international trade.