D&P Tank Service, Inc. was established in1962 in Fairfax, Oklahoma, by George W. Pease Jr. and Walter Dobbs during the booming oilfields of Osage County. Recognizing the high demand for vacuum trucks to transport water and saltwater to and from oil rigs, D&P started with just couple of forty-barrel trucks. However, as their workload rapidly increased and they upgraded to more efficient seventy-barrel trucks, solidifying their position as the premier transporter in the region!