David Cowles was recently named manager-supply and distribution for Inland Oil & Transport Co., St. Louis, Mo.

Mr. Cowles was previously in a similar capacity with Good Hope Refineries, Inc., New Orleans, La. His responsibilities at Inland, which operates liquid tank barges, towboats, and gasoline terminals, will include general supervision over all facets of the company's operations, including three Missouri gasoline wholesale terminals, barge line, pipeline movements, trucking and retail station operations affiliated with Inland.