Lake Peigneur in Louisiana drains into an underlying salt deposit. A misplaced Texaco oil probe had been drilled into the Diamond Crystal Salt Mine, causing water to flow down into the mine, eroding the edges of the hole.

Lake Peigneur is a brackish lake in the U.S. state of Louisiana, 1.2 miles north of Delcambre and 9.1 mi (14.6 km) west of New Iberia, near the northernmost tip of Vermilion Bay. With a maximum depth of 200 feet, it is the deepest lake in Louisiana. Its name comes from the French word "peigneur", meaning "one who combs."

Louisiana is a state in the Deep South and South Central regions of the United States. It borders Texas to the west, Arkansas to the north, and Mississippi to the east. Of the 50 U.S. states, it ranks 31st in area and 25th in population, with roughly 4.6 million residents. Reflecting its French heritage, Louisiana is the only U.S. state with political subdivisions termed parishes, which are equivalent to counties, making it one of only two U.S. states not subdivided into counties. Baton Rouge is the state's capital, and New Orleans, a French Louisiana region, is its most populous city with a population of about 363,000 people. Louisiana has a coastline with the Gulf of Mexico to the south; a large part of its eastern boundary is demarcated by the Mississippi River.

Salt mining extracts natural salt deposits from underground. The mined salt is usually in the form of halite, and extracted from evaporite formations.

Texaco, Inc. is an American oil brand owned and operated by Chevron Corporation. Its flagship product is its fuel "Texaco with Techron". It also owned the Havoline motor oil brand. Texaco was an independent company until its refining operations merged into Chevron in 2001, at which time most of its station franchises were divested to Shell plc through its American division. It was one of the first gas stations to exist.