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The idea was nothing short of revolutionary: Convert the nation’s millions of trucks, buses and other commercial vehicles to run on natural gas instead of gasoline and diesel.

Waste Management Inc. announced Oklahoma City as the location of its 100th compressed natural gas fueling station.

While gasoline prices are hovering around $2 per gallon in Oklahoma, that’s not the direct cost of the fuel. State and federal taxes tally up to 35.4 cents of total gasoline cost per gallon.

Oil slipped, heading for the biggest weekly loss in a month, as the outlook for demand dimmed in an already shaky market.

Pennsylvania motorists will have an opportunity to participate in a study exploring the potential impact of a road usage tax on the East Coast.

When it comes to liquefied natural gas in particular, refiners have turned their attention to a broader use: plastic goods.

U.S. producers are seen pumping away, even with the price of West Texas Intermediate crude lingering below $50 a barrel, according to the latest government estimates.

The U.S. average retail price of diesel jumped 5 cents to $2.581 in the sixth consecutive increase for trucking's main fuel.