SemGroup Corporation announced earnings results for the first quarter ended March 31, 2019. For the first quarter, the company announced sales was USD 567.232 million compared to USD 661.609 million a year ago. Operating income was USD 27.465 million compared to USD 34.853 million a year ago. Net loss was USD 6.839 million compared to USD 33.035 million a year ago. Basic loss per share was USD 0.37 compared to USD 0.48 a year ago.