petroleum *

In the coming years, petroleum will continue to be an important part of our energy future.

So does the particular nature of that nation's petroleum industry today.

Natural gas is often found in the ground together with petroleum.

He is also an authority on the history of petroleum.

He would go on to work in petroleum and insurance.

She worked in the petroleum industry before beginning to write.

They're looking for signs of petroleum, which they call a show.

Apparently, every once in a while they brought up petroleum, too.

An increasing number of them are also working in the petroleum industry.

To make sure that the price of petroleum products do not change much.

Because of the money from petroleum production, there have been many political problems in recent times.

Still more people and industry came when petroleum was discovered in the area.

A petroleum engineer with 3 5 years of international experience.

Also, the cost of petroleum is very hard to predict.

Petroleum products have also been strong, at times leading the market higher.

At the time, the chemical nature of petroleum was not known.

It is a key area for the country's petroleum operations.

The city itself is a big part of central Canada's petroleum market.

Petroleum has been found at the bottom of the bay.

Under his rule the country developed a large petroleum industry.

The club was named after the petroleum industry of the city.

The petroleum industry is the most important sector of the local economy.

The petroleum is of low quality, and used for energy generation only.

The existence of petroleum has been known since the 8th century.

That increase was in large part a result of near record petroleum prices.