Walthall Oil Company is an oil & energy company specializing in bulk fuels, oils, synthetics, greases, food grade lubricants, industrial lubricants and DEF. The Company's fuel products comprise gasoline, on and off-road diesels, ultra-low sulfur diesels, and biodiesels. It also provides on-site fueling, tanks and trucks rental, on-site truck leasing services, and tank and fuel cleaning systems.