The energy industry overhaul approved in Mexico will attract private investment to the oil industry throughout 2014, which will allow it "to make a difference in two or three years," Petroleos Mexicanos, or Pemex, executive Carlos Roa said Tuesday.

The first half of 2014 will be spent "completing the regulatory part," while the second half will see "conversations with some interested organizations, either acting on their own" or in collaboration with Pemex, Roa said in an interview with Efe.

Mexico's energy reform, passed by the Mexican Congress last week and which has the support of 20 of Mexico's 32 states, will open the hydrocarbons industry to private companies.

The time set for the regulatory development of the reform is 120 days, Roa said.

"We hope the process stays on course and can be completed in that length of time," the Pemex executive said.

Roa said that "all (private companies) will be interested" in investing in Mexico and that "he would like" the Spanish oil company Repsol to be one of them because "there's a lot to do" in that country. EFE