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Union Pacific Corp. said Thursday its second-quarter profit rose 19%, on higher demand for agricultural transportation.

Truckload carrier Knight Transportation’s second-quarter profit fell to $12.7 million, or 15 cents a share, from $18.2 million, or 21 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.

Wireless-services provider Qualcomm Inc. said its fiscal third-quarter earnings fell 6% to $748 million, or 45 cents a share, from $798 million, or 47 cents, a year ago.

Initial jobless claims rose to the highest in almost four months last week, the Labor Department said Thursday.

Hurricane Dolly made landfall on the South Texas coast Wednesday as a Category 2 hurricane, but the storm bypassed most major oil installations in the Gulf of Mexico, news services reported.

The House approved a bill by a lopsided margin Wednesday that would restore $8 billion to the federal Highway Trust Fund to avert an expected revenue shortfall in the coming fiscal year.

Truck maker Paccar Inc. said that the company’s president, Tom Plimpton, will become vice chairman, and that Jim Cardillo will become its president, effective Sept. 1.

U.S. economic activity remained generally weak in June and early July, and several regions reported trucking companies were having a hard time recouping higher costs, the Federal Reserve said Wednesday.