Shell has become a major petroleum producer from the deep waters of the gulf.

But now it, too, is going the way of other large petroleum producers that have called in the movers.

Cape Verde was not a natural gas or petroleum producer as of 2007.

Venezuela, the world's fifth-largest petroleum producer, is starting to run short of oil and food.

The taxes, which are charged to petroleum producers, have drawn sharp protests from business interests across the state.

The unexpected troubles of the world's sixth-largest petroleum producer have been the main force propping up oil prices recently.

In 1928 Achnacarry served as the meeting place for global petroleum producers in an effort to set production quotas.

The petroleum producers' association has asked the federal and provincial governments to make a number of regulatory and tax changes to encourage more exploration.

Its core focus is to promote the interests of petroleum producers and explorers in New Zealand which includes everything from policy through to education.

C. Colombia is the world's sixth-biggest petroleum producer.