Repsol is a prominent integrated energy company based in Madrid, Spain, with operations in over 50 countries. Founded in the late 1980s through the consolidation of several state-owned oil and gas companies, Repsol has grown to become Spain's largest industrial company and the sixth-largest oil company in Europe by sales. The company controls about 60% of Spain's refining market and has a significant presence in natural gas distribution.

Repsol's operations encompass the exploration and production of oil and natural gas, refining and marketing petroleum products, and petrochemical manufacturing. The company is also involved in the transport and distribution of hydrocarbons and is actively developing alternative energy sources. With over 30 major hydrocarbon discoveries, including significant shale oil fields in Argentina, Repsol serves a diverse customer base that includes industrial, commercial, and retail consumers across multiple continents.