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The national average for retail diesel fuel prices fell for the fourth straight week, reaching $1.059 a gallon on June 7, down from $1.065 the week before.

U.S. railroads are girding themselves for a fight over a possible mandate that they install reflective markings on more than 1.7 million rail cars at a cost of more than $400 million.

In less than a month, commercial truckers across the country will pull to the roadside and turn off their engines to show regulatory authorities that discrimination against truck drivers will not be tolerated. Or will they?

A Clinton administration proposal to charge maritime vessel operators a fee to cover the cost of harbor and navigational channel dredging is under fire from ports and maritime interests, but a powerful lawmaker warned that some sort of fee is likely.

Mike Skinner, a top driver in Nascar's Winston Cup circuit, drives for Team Yellow RacingNascar races these days are a far cry from the events where beer-loving, good old boys used to tailgate in their pickup trucks and watch their favorite drivers zip around the track.

U.S. Xpress Enterprises of Chattanooga, Tenn., said its second-quarter earnings would be roughly a third lower than analysts' expectations. The company also reported that it has reached a settlement in its dispute with Employee Solutions Inc.

The Teamsters union negotiating team, led by general president James P. Hoffa in his first appearance at the bargaining table, came to terms with the unionized autohaulers last week, avoiding a job walkout that would have disrupted new car deliveries across the country.

The price of diesel fuel continued its downward trend, hitting a nine-week low of $1.065 a gallon May 31, one-tenth of a cent off the previous week’s national average. Gasoline prices, which had been expected to rise, also dropped by 1.5 cents to $1.151.

A conference for Wall Street analysts on railroad finance last week turned into a debate on whether railroads should be forced to provide competitive access to their tracks and other infrastructure.

In an experiment that has an element of risk to it, Yellow Corp. is providing transportation services for eChemicals, a company that uses the Internet to match buyers and sellers of industrial chemicals.