Prices for tickets to Saturday’s Texas-Oklahoma game on the secondary market have reached a startling disparity that could result in more crimson than normal in sections typically reserved for fans wearing burnt orange in Dallas.A study released Thursday by SeatGeek.com, a search engine that tracks ticket prices on the secondary market, showed resale seats in the Texas half of the Cotton Bowl are nearly 40 percent cheaper than tickets in the OU half of the stadium. The site called it the largest gap in prices since 2010, a season when Texas finished 5-7.A study of other ticket-related search engines showed seats on the Texas side could be purchased at or below the face value of $110. Seats in OU areas all were priced well above face value.Based on evidence provided by SeatGeek.com, the average resale ticket price on Oklahoma’s side of the stadium is $331, well above the average price for a seat in one of the Texas sections ($209). The gap of $122 per seat more than doubles the highest gap recorded in any of the past three seasons ($53 per seat) on the resale market, based on studies done by the site.The price differential and ticket demand suggests there could be more OU fans than normal in Texas sections by Saturday’s kickoff.As of Thursday, SeatGeek.com cited the lowest available price for a seat in the OU section as $133. For less than $133, fans could purchase a seat in 15 sections on the Texas side, including four sections in the lower bowl.