MEXICO CITY, March 18 (Reuters) - The Mexican government invited four firms to bid on the construction of an $8 billion refinery for state oil company Petróleos Mexicanos, or Pemex
, the energy minister said on Monday, part of an effort to fast-track one of its signature projects.
The companies are Bechtel in consortium with Techint; WorleyParsons (WOR) in consortium with Jacobs; and Technip and KBR KBR.N as sole bidders, Energy Minister Rocio Nahle said at an event commemorating the 1938 nationalization of Mexico's oil industry.