Men en ting er sikker: De store virksomheder har haft en væsentlig fortjeneste, der gør det muligt for dem at investere med henblik på at modernisere raffinaderierne, som de i øvrigt undertiden har ladet blive mere eller mindre forældede, for at opfylde miljøets behov.
But one thing is certain: the large companies have made substantial profits which enable them to make investments to modernize refineries, which at times were left to become more or less obsolete, in response to environmental needs.