competitiveness..

Oil has been known in our country since the sixteenth century when it was used for lubrication and medicinal purposes. Oil research and production began in Medimurje (Selnica) and near Kutina (Mikleuska), then in the post war period this was

Oil and it's derivatives are one of the most important and vital energy sources. It is also the raw material for the synthesis of a large number of various chemical compounds and products which are essential in all branches of the modern economy

The total land and ocean reserves are estimated at 150 billion tonnes. Apart from these, there are other considerable reserves of oil held in oil shales which are estimated at 400 billion tonnes. Annual consumption of oil today is about 3,0

Oil was used for protecting walls against dampness.

I think i can improve on your middle sentence. See what you think... The value of oil primarily depends on the recoverable content of the lighter fractions ( those used for petrol, petroleum and gas oils) and on the sulphur content. The more

Oil is a hydrocarbon in liquid form which contains dissolved hydrocarbon gases. In addition it also contains solid particles and other substances (compounds which contain sulphur, nitrogen and oxygen) which can make (or,which can total) up to 5

I thought the word 'viscous' would be a better alternative than 'sticky'. Especially as your speaking of oil in general terms. Oil is a viscous liquid of brown-greenish colour.

Oops....seems Alan and myself were replying at the same time. I hope his interpretation is the correct one.

Hi Atonija...This is obviously to do with certain processes/stages in the refinery. The second part it is a bit confusing. I'm not familiar with 'the short side chain' and also 'napthene ring' so I'm guessing they are stages or sections of the