P.A.M. Transportation Reports 4Q Earnings, Annual Loss by Lance Turner Posted 2/10/2012 08:01 am Updated 3 years ago P.A.M. Transportation Services Inc. of Tontitown swings to a fourth-quarter gain, but its annual loss widened as the company continued to try to build a "sustainable profit model." Want the Full Article? Get Unlimited Archive Access for $19.95 per Year Readers must pay to access stories older than 20 days. Purchase Now Already have archive access? Login to view this article.