CASPER, Wyo. (AP) — As polls open today for Wyoming's primary, many residents will be picking up new party ballots. Natrona County Clerk Renea Vitto tells the Casper Star-Tribune that she's seeing a lot of people who registered as Democrats for the 2008 presidential election switch back to the Republican party. Only Republicans can vote in the GOP primary.

CHEYENNE, Wyo. (AP) — Sinclair Oil has agreed to pay a $3.8 million fine for exceeding air pollution limits at two of its refineries in Wyoming. The Environmental Protection Agency says Sinclair also agreed to spend about $10.5 million on additional pollution control equipment and other measures. Sinclair Senior Vice President Clint Ensign says the company has been working to resolve the issues.

CHEYENNE, Wyo. (AP) — The Wyoming Highway Patrol says a tractor-trailer that was pulled over during a traffic stop over the weekend was carrying 231 pounds of marijuana mixed in with a load of commercial lighting fixtures. Troopers arrested the two men in the truck. Their vehicle was pulled over Sunday morning on eastbound Interstate 80, about 21 miles east of Elk Mountain in Carbon County.

LARAMIE, Wyo. (AP) — Less than a week after the school said he was leaving for personal reasons, sophomore running back Kody Sutton is back with Wyoming. Coach Dave Christensen says Sutton had some personal issues that he was able to resolve. He says Sutton asked to be reinstated over the weekend and resumed practice yesterday. Christensen says the team is glad to have Sutton back.