Heartland Barge Brokerage services offers a great selection of reliable and quality used Supply and Utility vessels for sale for all your commercial needs. A supply or utility vessels is small ship or tugboat used to tow offshore platforms to a designed location and assist in anchoring them to that location or to transport supplies and people to offshore drilling rigs or other maritime vessels. Depending upon the services required a supply vessel may be designed as an anchoring handling tug supply vessel or a platform supply vessel.