Iraq had produced oil from the field before it went to war with Iran.

At least six Western companies are expected to begin producing oil in this region soon.

Although foreign companies do not produce oil here, these four control nearly half of fuel distribution.

"Now for an A plus, tell me the cost of producing oil by my method?"

But when the skin produces too much oil, problems can arise.

The extent of these resources is well known, but better technologies to produce oil from them are still being developed.

It produces oil, but its reserves are expected to run out in about 10 years.

Here you can observe the way with which our ancestors produced oil.

The field also produces oil, first discovered in 1961, from 38 wells as of 2008.

For the well is not producing oil or gas, but something even more basic to their survival: water.