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The Environmental Protection Agency postponed until early August its decision on whether to grant a request from Texas to cut the national renewable fuels mandate in half, citing the huge number of comments EPA has received on the issue, which has pitted livestock growers against grain producers.

The national average price of retail diesel fell 11.5 cents to $4.603 a gallon, the Department of Energy reported Monday.

Third-party logistics company and freight broker Hub Group’s second-quarter net income rose to $15 million, or 40 cents a share, from $13.8 million, or 35 cents, a year ago.

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

Eastern freight railroad Norfolk Southern Corp. said its second-quarter profit rose 15%, as higher revenue per shipment offset an overall drop in traffic and record fuel prices.

Transportation and third-party logistics firm C.H. Robinson Worldwide said its second-quarter profit rose to $90.4 million, or 52 cents a share, from $82.3 million, or 47 cents, a year ago.

Nicole Nason, administrator of the National Highway Traffic Safety Administration, told Transportation Secretary Mary Peters she plans to leave the agency in August, the Associated Press reported.

To boost lagging enrollments in the Transportation Worker Identification Credential program at Southern California ports, the Port of Los Angeles has opened a new enrollment center close to the adjacent Port of Long Beach.