[Western Phil]

Is the Mexican refining system nationalized?

[thackney]

I believe all oil production, refining and distribution is by PEMEX.

[thackney]

http://www.pemex.com/index.cfm?action=content&sectionID=123

Petroleos Mexicanos is the biggest company of Mexico and Latin America, and the most important fiscal contributor of the country.

It is of the few oil companies of the world that develops all the productive chain of the industry, from the exploration, to the distribution and commercialization of all the products.

...

PEMEX operates by the conduct of a Corporative Office and four Subsidiary entities.

PEMEX Exploración y Producción (Exploration and Production)
PEMEX Refinación (Refining)
PEMEX Gas y Petroquímica Básica (Gas and Basic Petrochemicals)
PEMEX Petroquímica (Petrochemical)