According to the EIA.gov website, the total weekly product of oil supplied was used to create seven major products. ~49% of the 18,855 thousand barrels of crude oil supplied on the 16th of May 2014 was used to make motor gasoline. This is by far the most produced product from crude oil. 8% of the supplied crude oil on this day was used to make jet fuel. 20% was used to make diesel fuel.

Crude oil inherently contains toxic compounds which must be removed in the refining process to meet safe standards when burned. Benzene, sulfur, and organometallics are some of these compounds. Because benzene is a carcinogen, only a limited amount can be found in gasoline or fuel oil.  Heavy crude oils can contain organometallic compounds like nickel and vanadium. These are toxic and corrosive in nature and are removed in the refinery. Environmental standards for sulfur requires gasoline, jet fuel, diesel, and fuel oil to be limited in the refinery.