Lafayette-based IberiaBank Corp.’s third-quarter earnings jumped to $42.5 million, or $1.03 cents per share, compared with $30.9 million, or 92 cents per share, a year earlier.

The company’s third-quarter profit was lowered slightly by non-operating expenses, which reduced earnings by 4 cents per share after taxes.

Daryl G. Byrd, president and chief executive officer, said IberiaBank has worked to reduce risks by cutting down on the number of energy-related and indirect automobile loans. Energy-related loans dropped by 9 percent during the quarter, accounting for 5.1 percent of total loans by Sept. 30.

“We continue to work diligently to improve our operating results while maintaining the favorable level of high-quality growth that we delivered consistently over the last 16 years,” Byrd said. “Our results in the third quarter of 2015 continued to show progress in that regard.

Byrd said the company expects fourth-quarter earnings to be between $1.10 and $1.15 per share. If that happens, then IberiaBank will end the year with earnings 12 to 13 percent above the 2014 results.