MEXICO CITY( REUTERS)-Just days after video of a massive ocean surface blaze near a Pemex oil platform in the Gulf of Mexico went viral, Mexico's national oil company has declared that environmental damage was avoided due to quick action by its workers. The July 2 blaze, caught on video apparently from a nearby helicopter, showed bright orange flames jumping out of the water as the fire raged a short distance from the oil platform.... Pemex has previously said it took more than five hours to fu