Inland Salvage Inc. Successfully Refloats Stranded Drill Barge from the Caillou Island Oilfield in the Gulf of Mexico. Inland Salvage Inc. (ISI) recently demonstrated its diversified capabilities with the offshore deployment ISI salvage and emergency response equipment and personnel in the successful fuel removal, partial dismantlement and refloat of a stranded 2,500 ton posted drill barge. The drill barge suffered side shell damage and loss of watertight integrity due to contact with a support barge in rough seas.