SemGroup Corporation announced earnings results for the fourth quarter ended December 31, 2018. For the fourth quarter, the company announced sales was USD 611.863 million compared to USD 606.806 million a year ago. Operating income was USD 49.913 million compared to USD 73.247 million a year ago. Net income was USD 551,000 compared to USD 2.619 million a year ago. Basic loss per share was USD 0.08 compared to basic earnings per share of USD 0.03 a year ago. For the full year, sales was USD 2,503.262 million compared to USD 2,081.917 million a year ago. Operating income was USD 155.811 million compared to USD 94.060 million a year ago. Net loss was USD 26.749 million compared to USD 17.150 million a year ago. Basic loss per share was USD 0.65 compared to USD 0.24 a year ago.