Operatons and refining operatons turn crude oil and gas into marktable products. In the case of crude oil, these products include heating oil, gasoline for use in vehicles, jet fuel, and diesel oil. Oil refining processes include dis-catalytic cracking, alkylation, isomerization and hydrotreating.

Again is there anyone who loves or pursues or desires to obtain pain of itself, because it is pain, but seds because occasionally circumstances occur in which toil and pain can procure him some great pleasure.