Higher vehicle efficiencies and the growing use of compressed natural gas in heavy-duty vehicles will lead to a decline in U.S. diesel demand beginning in 2016, according to a report released Oct. 29.

Several trucking industry suppliers reported higher third-quarter earnings, citing strength in North American on-highway markets.

Workers at two of three Con-way Freight terminals in Southern California voted against joining the Teamsters union, while a third, in Los Angeles, voted narrowly in favor of representation, the company said.

Quebec-based Canadian American Transportation Inc. signed a lease agreement with Ryder System Inc. for 100 compressed natural gas sleeper tractors in what Ryder said was its largest natural-gas deal to date in North America.

Con-way Freight said it will boost rates by an average 4.7% for noncontractual business, effective Oct. 27.

UPS Inc.’s third-quarter profit rose from a year ago and the company said it expects its December shipments to rise 11%.

Forward Air Corp.’s third-quarter net income rose to $16.7 million, or 54 cents a share, from $14.2 million, or 46 cents, a year ago.

Hub Group Inc. said its third-quarter income declined due to driver-settlement and software-development charges.