The computer screens lining the bubble like control room on this giant floating platform monitor pressure levels in a narrow shaft cut through bedrock to a reservoir of valuable natural gas three miles below sea level. For six months, an international team hired by a contractor for Petróleos Mexicanos, Mexico’s state-owned oil monopoly, has been drilling an exploratory well here. Now, the work is nearly done. Drill pipes are stacked like sentries. An underwater robot has been pulled back up from the deep seafloor. A wireline sensor is gathering data to determine how much oil and gas lie below. An operation like this would attract little attention in the northern part of the gulf, where dozens of deepwater platforms are part of the mosaic fueling America’s energy boom. On the Mexican side, though, the search is just beginning . Pemex is counting on […]