In 1991, retreating Iraqi soldiers set Burgan Field on fire during the 1st Gulf War in a scorched earth tactic. Smoke plumes from the Greater Burgan oil field extended 50 kilometers in width on any given day, and 2.5 km thick. From satellite observations the plume appeared like a black snake in the desert that extended parallel to the Persian Gulf. The Red Adair Service and Marine Company extinguished 117 of the burning well fires, while the Canadian company Safety Boss set the pace with 180 wells extinguished. Declassified 1991 CIA documents claimed that despite the destruction there was no significant depletion of the oil reserves and drop in production capacity at Burgan field. Three gathering stations were, however, too badly damaged to repair.