Titusville, August 27, 1859: Colonel Drake discovers a deposit of oil—black gold! Immediately, the Oil Rush is on. The mayor of Titusville calls on Lucky Luke to help maintain order. When Lucky Luke arrives, everyone—from the sheriff to the undertaker—is drilling. As soon as a well is opened, the fight begins. In comes Barry Blunt, a rich prospector who buys up, one by one, all the oil shafts from their owners. But his more-than-suspicious methods draw the wrath of Lucky Luke...