Diversified Petroleum Service is based in Wolcott, CT. We deliver, within a radius of about 20 miles in New Haven, Litchfield & Hartford Counties. We offer quality oil delivered at the lowest cost possible, plus free emergency delivery, free prime start, free oil tank inspection, 100 gallon minimum, cash on delivery. Since our inception in 1996, we pride ourselves on fulfilling our customer obligations on time with the highest level of professionalism and effectiveness.