OSG Orders Second 204,000 Barrel Barge at Gunderson Marine 23 January 2019 OSG orders second 204,000 barrel oil and chemical articulated tug barge (ATB) at Gunderson Marine.Author: Capt. Johnhttps://worldmaritimenews.com/archives/269421/osg-orders-second-204000-barrel-barge-at-gunderson-marine/