North Dakota Public Service Commissioner Kevin Cramer, left, speaks as commissioners Tony Clark, center, and Brian Kalk, right, listen on Friday, May 13, 2011, in the commission's hearing room on the ... more 
North Dakota Public Service Commissioner Kevin Cramer, left, speaks as commissioners Tony Clark, center, and Brian Kalk, right, listen on Friday, May 13, 2011, in the commission's hearing room on the 12th floor of the North Dakota Capitol in Bismarck, N.D., during a meeting to discuss an oil spill by TransCanada Corp.'s Keystone oil pipeline in southeastern North Dakota a week ago. The commission voted Friday to order a formal investigation of the spill, which will allow the agency to take testimony about the accident, and allow for direct participation by interested members of the public. less 
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Associated Press | Photo By Dale Wetzel
Fri, May 13, 2011 1:38 PM EDT