P.A.M. Transportation Services, Inc. announced earnings results for the second quarter ended June 30, 2021. For the second quarter, the company announced total revenue was USD 161.263 million compared to USD 92.979 million a year ago. Operating income was USD 21.019 million compared to operating loss of USD 2.007 million a year ago. Net income was USD 15.317 million compared to net loss of USD 823,000 a year ago. Diluted earnings per share from continuing operations was USD 2.66 compared to diluted loss per share from continuing operations of USD 0.14 a year ago. For the half year, total revenue was USD 310.122 million compared to USD 222.134 million a year ago. Operating income was USD 34.672 million compared to USD 7.479 million a year ago. Net income was USD 27.266 million compared to net loss of USD 2.127 million a year ago. Diluted earnings per share from continuing operations was USD 4.74 compared to diluted loss per share from continuing operations of USD 0.37 a year ago.