Mexico will delay its next offshore oilfield auctions by a month, giving international bidders more time to evaluate recent major crude discoveries that highlight the potential value of the assets.

A new billion-barrel find announced last week "confirms that the Mexican side of the Gulf of Mexico is very prolific," said Juan Carlos Zepeda, Mexico's chief oil regulator in an interview Friday. "International and national interest is awakening."

July 12 marked perhaps the single most successful day for the Mexico oil industry since the government ended Petroleos Mexicanos's government-owned production monopoly in 2014. Premier Oil Plc, Sierra Oil & Gas and Talos Energy LLC reported a reservoir with an estimated 1.4 billion to 2 billion barrels of oil in the southern Gulf of Mexico.

On the same day, Italian producer Eni Spa said its March find in Mexico's offshore waters also contains the equivalent of as much as 1 billion barrels, and Mexico successfully auctioned 21 of 24 onshore fields to private companies.

"There was already interest to come, explore and work in the Gulf of Mexico before these finds, but now to have discoveries in such a short time, interest of international entrants to have activity in Mexico has renewed," Zepeda, head of the National Hydrocarbons Commission that oversees the industry, said in an interview in Bloomberg's CDMX office.