(Shands & Baker, Inc., Diamond Sand and Stone Company, Overland Hauling Co., Inc., Petroleum Carrier Corporation of Florida, Inc., Florida Rock & Tank Lines, Inc, Infinger Transportation, Sunbelt Transport, Inc, Patriot Transportation Holding Inc.)
In 1962, Shands and Baker Incorporated entered the trucking industry as a private carrier and sales agent for Rock and Sand Mines. The companies eventually merged and became Florida Rock Industries, Incorporated.
The company continued its growth in the southeastern United States, transporting petroleum and other liquid and dry bulk commodities in tank trucks. The company continues to operate under the parent company, Patriot Transportation Holding Inc.