An expected wave of international geological firms set to scan Mexico’s oil patch for oil and gas reserves will give the country a clearer picture of its riches, the nation’s top energy regulator said Monday in an interview. In the wake of Mexico opening its energy sector to foreign companies, the National Hydrocarbons Commission has about two dozen companies requesting permission to conduct surface exploration , such as seismic studies that can reveal oil and gas deposits below the ocean floor or in onshore areas. Those companies can use newer technologies and provide a greater number of scans that Mexico has used in the past, giving a clearer picture of the potential reserves. Some of those firms are expected to be cleared for exploration in coming weeks, in addition to four Norwegian companies that were cleared last week to cover nearly one-million square kilometers in the Gulf of […]