0 oil in its raw, unrefined form, which is found in natural wells below the earth’s surface and from which petrol, paraffin etc are obtained. -- dầu mỏ
Over two-thirds of urban air pollution is generated by transportation, while virtually all the remainder are due to other petroleum-using activities.
There is a high dependence on imported petroleum products, which make up 6% of total imports.
The darkly stained surface soil in the depot area also suggests that other petroleum products were spilled at the site.
Many economies are dominated by mining, petroleum, or other industrial commodity production, others receive more income in foreign aid than in corporate or income taxes.
The resulting balance of payments crisis was exacerbated by the government's delay in adjusting petroleum prices and electricity rates.
Once commercialized fuel markets exist, petroleum fuels can get their breakthrough if they can compete on price with fuelwood.
There was a long list of antitrust offences of which the petroleum companies were purportedly guilty, and one of these was exchange agreements.
It is the realm of bioremediation where the greatest advances are being made for treating petroleum-contaminated soils in cold regions.