Hawkins contributed to the development of a rubber substitute made from petroleum stock.

The Energy Department reports on petroleum stocks, production, imports and refinery use.

Commercial petroleum stocks are much tighter today than in 1990, and there is less ability to substitute other fuels.

He enjoyed watching the enemy's petroleum stocks going up in flames.

The Department of Energy issues its weekly report on petroleum stocks, production, imports and refinery use.

When petroleum stocks dropped out the bottom, Heller used his Maysabongo resources to buy them all up and to take control of Earth's oil industries.

The government has promised to release as much crude oil as necessary from its emergency petroleum stocks to make up for any shortages.

In my view, most of our petroleum stocks are at the low end of anything we have operated with.

The Dow gained most of its stability from petroleum stocks.

The American Petroleum Institute issues its report on petroleum stocks.