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Truckload carrier Knight Transportation’s second-quarter profit was about even with a year ago at $12.6 million, or 15 cents a share, compared with last year’s $12.7 million, or 15 cents.

Hub Group Inc. said late Wednesday its second-quarter net income fell to $8.3 million, or 22 cents a share, from $15 million, or 40 cents, a year ago.

Transport carriers are under pressure to reduce greenhouse gas emissions, but the long-term fuel savings a hybrid truck could deliver are out of sync with fiscal reality for companies forced by the recessionary economy to pinch every penny.

Deutsche Post DHL has signed a five-year telecommunications agreement with AT&T, in which AT&T will provide telecommunications to Deutsche Post DHL units throughout the United States.

Third-party logistics firm C.H. Robinson Worldwide said that it had acquired London-based Walker Logistics Overseas, an international freight forwarder.

Volvo AB said Tuesday it lost $725 million, or 36 cents a share, more than analysts’ estimates, and said it was facing a “difficult” third quarter in light of lower truck sales, Bloomberg reported.

Canadian National Railway said late Monday its second-quarter net income fell 16% to C$387 million, or 82 cents a share, from C$459 million, or 95 cents, a year ago.

Heavy equipment and diesel engine maker Caterpillar Inc. said Tuesday its second-quarter profit fell by two-thirds, but boosted its full-year earnings forecast.

Transportation and third-party logistics firm C.H. Robinson Worldwide reported a second-quarter profit of $92 million, or 54 cents a share, up slightly from $90 million, or 52 cents a share, a year ago.