Charges of graft had haunted the oil monopoly for decades.

Mexico's state-run oil monopoly, Pemex, is the world's fifth-largest oil company.

At the moment, little stands between him and a total oil monopoly.

Over nationalist objections, a gradual easing of Brazil's oil monopoly has been taking place during the last two years.

Mexico's state-run oil monopoly has signed an agreement to supply Japan with $4 billion worth of petroleum in the next five years, officials said.

Foreign companies have signed more than $10 billion worth of drilling contracts with the state-owned oil monopoly, and much more is yet to come.

"We should make the oil monopoly more flexible."

The Consortium is a group of oil companies and terrorists bent on creating an oil monopoly.

When it comes to nationalized property, perhaps only the oil monopoly Pemex raises more passion than the railroads.

The firm was created through the merger of Poland's two communist oil monopolies.