Drilling rig sink hole

On Thursday, November 20, 1980, the drill assembly of a Texaco contracted oil rig, just offshore of the salt dome-caused Jefferson Island (itself in the east southeast section of Lake Peigneur), pierced an inactive third level of the Diamond Crystal Salt Company salt mine.OverviewLake Peigneur is a lake in the of , 1.2 miles (1.9 kilometers) north of and. . In , the formation of a often pushes terrain upward from the surrounding land, while also creating a subterranean , holding petroleum deposits. On Thursday, November. . • (archived)• on •. [pdf]