Will Friday's Exxon pipeline oil spill affect President Obama's decision on whether to approve the Keystone XL pipeline extension? Right now, the White House isn't saying.

Exxon Mobil is in the process of cleaning up what it describes as “a few thousand” barrels of Canadian heavy crude oil which spilled near Mayflower, Ark., about 25 miles north of Little Rock. The breach from the 95,000-barrel-a-day Pegasus pipeline, which originates in Patoka, Ill., and carries crude oil to the Texas Gulf Coast, has prompted the evacuation of 22 homes and underscores the concern some opponents have raised about the nearly 800,000-barrel-a-day pipeline TransCanada has proposed building between Hardisty, Alberta and Gulf Coast refineries.