Cummins KTA50-M2 diesels, 3200 hp. Haley reduction gears, 6.864:1. Originally Helen Merrill, owned by Seacor Offshore Barges LLC, St. Louis, MO. Operated by SCF Waxler Marime LLC, Memphis, TN 2010-9/2012. Transferred to SCF Liquids, St. Rose, LA 9/2012. Sold to Kirby Inland Marine LP, Houston, TX 4/2016, renamed Mark Shell 1/2017. Current owner/operator.
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