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YRC Worldwide Inc. reported a decline in second-quarter net income, even as operating revenue increased.

Forward Air Corp., a mostly expedited LTL carrier, reported July 26 second-quarter net income of $24.3 million, or 83 cents per share compared with $19.7 million, or 65 cents, a 23% increase from a year ago. The company’s operating revenue increased to $330.3 million compared with $283.9 million, a 16% jump.

Landstar System reported record second-quarter net income of $62.5 million, or $1.51 a share, a rise of 67% from $37.5 million, and 89 cents per share, in the same period a year ago.

UPS Inc. rose the most in almost seven years as international sales surged and the courier’s ambitious investment plans started to win over investors.

Covenant Transportation Group reported a positive second quarter, recording greater revenues and income as it moved forward on its purchase of Landair Holdings.

UPS Inc. reported solid second-quarter growth in revenue and profits despite charges taken for its voluntary retirement plan and efforts to upgrade the firm.

Heartland Express reported second-quarter net income of $17.8 million, or 22 cents per share, a 22% increase from $14.6 million, or 18 cents, recorded in the second quarter of 2017.

Leaders at prominent less-than-truckload carriers are optimistic about the future as their companies adapt and expand services to capitalize on favorable long-term trends, such as the move toward smaller shipments and the growth of e-commerce.

The Occupational Safety and Health Administration has opened an investigation into a fatal accident at XPO Logistics in Lockport, N.Y., early June 25.