Earnings at International Bancshares (IBOC) fell slightly in the first quarter from a year earlier.
The $11.5 billion asset company in Laredo, Texas, earned $28.1 million or 42 cents per share, compared with $28.3 million in the first quarter of 2012.
The company's loan portfolio grew 2.1% year over year, to $4.8 billion.
"I'm pleased with the company's earnings success in 2013, especially in light of this still unsettled economic environment as well as the regulatory challenges confronting the industry," Dennis Nixon, International's chief executive, said in a press release.
IBC has 217 branches throughout Texas and Oklahoma.