U.S. Shipping Partners announced the completion of its second Articulated Tug Barge (ATB) unit on schedule with the delivery of the barge Petrochem Producer from Bay Shipbuilding at . The , the tug for the second unit, was delivered in July from Eastern Shipbuilding, . The Galveston/ Petrochem Producer is currently enroute to the Gulf Coast and will enter service in early September on long term charter to a major oil company. The third ATB in the series is scheduled to be delivered in November of this year and the fourth ATB in August of 2009.