In its day - prior to the drilling of oilwells to tap reservoirs of crude oil- the pyrolysis of mined solid organic-rich deposits was the conventional method of producing mineral oils.
U prijašnjim vremenima, prije bušenja naftnih izvora kako bi se iskoristile zalihe sirove nafte, piroliza iskopanih krutih organskih bogatih depozita bila je konvecionalni način proizvodnje mineralne nafte.