Economy & Business - September 2011 (ISSN 1741-7430)

Petróleos Mexicanos, the state oil monopoly, argues that its alliance with a Spanish construction company, Sacyr-Vallehermoso (Sacyr ) to vote as a bloc as shareholders in Repsol-YPF, a large Spanish-Argentine oil company, is part of its strategy to diversify and gain access to modern technology.