U.S. Talos Energy and Mexico's state-controlled oil firm Pemex have another three months to discuss and possibly reach an agreement over how to manage and operate a massive oil find offshore Mexico, the chief executive of Talos Energy, Tim Duncan, told Reuters this week. Talos Energy, leading a consortium of foreign oil companies, discovered the large Zama oil deposit in 2015. At an estimated 670 million recoverable barrels of oil, the discovery was the largest oil find in Mexico by a private company in decades. Pemex, however, says that the Zama…