Career
Pesqueira was born in Arizpe, Sonora. Roberto joined Francisco I. Madero"s Anti-Reelectionist Party in 1910 and was elected federal deputy representing the first district of Sonora in 1913, but refused to serve in the Chamber of Deputies after the consummation of Victoriano Huerta"s coup d"état on 20 February 1913, and decided to join the revolutionary forces instead. He was elected federal deputy once again in 1917 and acquired oil fields some years later.
In February 1923 he wrote a letter to President Álvaro Obregón, alerting him of some irregularities detected in his foreign competitors.
In particular, the Huasteca Oil Company.
