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Arkansas oil spill ignites fears about Keystone XL pipeline

Exxon Mobil said that one of its pipelines leaked "a few thousand" barrels of Canadian heavy crude oil near Mayflower, Ark., prompting the evacuation of 22 homes and reinforcing concerns some critics have raised about the proposed Keystone XL pipeline.

The pipeline breach took place late Friday, Exxon said, in the 20-inch diameter, 95,000-barrel-a-day Pegasus pipeline, which originates in Patoka, Ill.. The pipeline carries crude oil to the Texas Gulf Coast, the country's main refining center. Mayflower is about 25 miles north of Little Rock.

By Sunday afternoon, the company had deployed 15 vacuum trucks and 33 storage tanks to start cleaning up and temporarily store about 12,000 barrels of oil and water that had been recovered, the company said.

The pipeline, which was built in the 1940s and was recently expanded, was carrying low-quality Wabasca Heavy crude oil from Alberta, Exxon Mobil spokesman Alan Jeffers said. According to the Crude Monitor website, Wabasca Heavy is a blend of oil produced in the Athabasca region, where the oil sands are located. An existing Keystone pipeline carries crude oil that comes from the oil sands deposits in Alberta to Patoka. Jeffers said he did not know if this batch of crude oil came from the Keystone line.

Many critics of the Keystone XL pipeline say that corrosion risks are greater in pipelines carrying low-quality bitumen-laden crude from the oil sands. They have urged President Barack Obama to reject the Keystone XL permit application.

"This latest pipeline incident is a troubling reminder that oil companies still have not proved that they can safely transport Canadian tar sands oil across the United States," said Rep. Edward Markey of Massachusetts, the ranking Democrat on the House Natural Resources Committee.

About 30 protesters line up against the proposed Keystone XL oil pipeline as President Barack Obama visits Miami on Friday.

Associated Press

About 30 protesters line up against the proposed Keystone XL oil pipeline as President Barack Obama visits Miami on Friday.

Arkansas oil spill ignites fears about Keystone XL pipeline 03/31/13 [Last modified: Monday, April 1, 2013 1:05am]
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