Lawrence County Highway M is closed south of Highway Z between Halltown and Everton as crews clean up an oil pipeline spill. The Missouri Department of Transportation says the closure will last until Thursday.

Drivers will have to find an alternate route around the closing. Drivers will be able to get to driveways and other entrances on both sides of the closing but will not be able to travel through the work zone.

Weather and/or work scheduling conflicts could postpone the project.

Enbridge Energy said Sunday that nearly 200 barrels of oil leaked out of a pipeline at its pump station. A spokesman for the company said a detection alarm went off alerting workers that there was a leak. He said 8,400 gallons of oil leaked, with most of it staying on the company's property, but some reached a drainage ditch near Highway M. The company said the oil in that area was contained and will be vacuumed out.

The spokesman said the company is investigating what led to the leak.

An Enbridge spokeswoman says the pipeline was built about 1950. Enbridge acquired it in 2005 when it bought Shell Pipeline company. Enbridge calls it Line 51 but says it is also called the Ozark Pipeline. It's a 22-inch diameter pipeline that carries light crude oil from Cushing, Okla., to Wood River, Ill..