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For any company that goes the route of running its own private fleet — seeking the advantage of always being its own highest-priority customer — the most common pitfall is failing to properly manage operational costs, industry officials said.

U.S. retail fuel prices continued to soar into uncharted territory last week, as the average price of diesel jumped another 8.4 cents to $4.143 a gallon and gasoline gained 11.9 cents to $3.508, the Department of Energy reported.

Third-party logistics company and freight broker Hub Group’s first-quarter profit rose to $13.1 million, or 35 cents per share, from $11.5 million, or 29 cents, a year earlier.

Volvo AB’s earnings rose 12% to about $707 million, as sales in Eastern Europe Russia offset North American declines, Bloomberg reported Friday.

YRC Worldwide reported a first-quarter loss of $45.9 million, or 81 cents a share, compared with earning $1.3 million, or 2 cents a share, a year ago.

Saia Inc. Friday reported a first-quarter loss of $833,000, or 6 cents a share, compared with earning $3 million, or 21 cents, a year ago.

Rail intermodal traffic fell 3.2% for the week ended Saturday compared with the same week a year ago, the Association of American Railroads said.

New home sales fell to a 17-year low in March, the Commerce Department said Thursday.