Jerry Simmons, executive director of the National Association of Royalty Owners, speaks at the opening day of the Williston Basin Petroleum Conference in Bismarck, N.D. Tuesday, May 22, 2012. (AP ... more 
Jerry Simmons, executive director of the National Association of Royalty Owners, speaks at the opening day of the Williston Basin Petroleum Conference in Bismarck, N.D. Tuesday, May 22, 2012. (AP Photo/The Bismarck Tribune, Mike McCleary) less 
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Associated Press | Photo By The Bismarck Tribune, Mike McCleary
Tue, May 22, 2012 9:59 PM EDT