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Swedish truck maker Scania AB’s second-quarter net income jumped 51% to about $505 million, or 63 cents a share, from last year's $333 million, or 42 cents, as truck sales in Russia boomed, Bloomberg reported Friday.

Durable goods orders rose in June, the Commerce Department said Friday.

Saia Inc. on Friday reported that it earned $5.4 million, or 40 cents a share, in the second quarter, down from $10.4 million, or 72 cents, a year ago.

The average price of retail diesel in the United States dipped 4.6 cents last week to $4.718 a gallon, the largest weekly drop in more than six months, the Department of Energy reported.

Railroad executives acknowledged to the Surface Transportation Board

Most public less-than-truckload companies’ second-quarter profits fell as fleets were pounded by record diesel prices and flagging economic demand, but some executives said they thought the overall pricing environment had improved, or at least stabilized.

WASHINGTON — The Government Accountability Office said last week that hundreds of thousands of truck drivers with potentially serious medical conditions are being allowed to drive heavy vehicles, citing loopholes and weaknesses in the federal government’s program to certify drivers.

Truck dealership Rush Enterprises’ first-quarter net income fell to $6.1 million, or 16 cents a share, down from $13 million, or 34 cents, a year ago.

Pennsylvania officials have resubmitted an application to install tolls on Interstate 80 and hope to win federal approval to have as many as 10 tollbooths on the 311-mile highway by 2010, the Philadelphia Inquirer reported Thursday.

Existing homes sales fell in June to the lowest level in a decade, the National Association of Realtors said Thursday.