YPF S.A. (Yacimientos Petrolíferos Fiscales) is a vertically integrated Argentine energy company, engaged in oil and gas exploration and production, and the transportation, refining, and marketing of gas and petroleum products.

Founded in 1922 under President Hipólito Yrigoyen's administration, YPF was the first oil company established as a state enterprise outside of the Soviet Union, and the first state oil company to become vertically integrated. YPF was privatized by Carlos Menem and bought by the Spanish firm Repsol in 1999; the resulting merger produced 'Repsol YPF'.

The renationalization of 51% of the firm was initiated in 2012 by President Cristina Fernández de Kirchner.The government of Argentina eventually agreed to pay $5 billion compensation to Repsol.

The company remained the largest in its sector in Argentina despite declining production, operating 52% of the nation's refinery capacity in three facilities and 1,600 filling stations. Its sales of gasoline and other motor fuels totaled 12.15 billion liters (3.21 billion gallons) in 2011, 57% of the national market in these.

According to Statista, in 2020, YPF (Yacimientos Petrolíferos Fiscales) was the most valuable Argentine brand, with a brand value of 1.21 billion U.S. dollars. 

According to Statista and en.wikipedia