BOK Financial Corp. of Tulsa, Okla., topped $100 million in earnings for the first time last year, thanks mainly to a 37% increase in commercial lending, according to the company.

The $9.7 billion-asset company said last week that net income for the year was up 12%, to $100.1 million, and that fourth-quarter income rose 10%, to $25.5 million.

Stanley Lybarger, president and chief executive officer, attributed the performance to strong loan growth in neighboring states. The company’s Texas portfolio grew 34%, to $1.6 billion, and loan volume in New Mexico increased 55%.

“Our objective for the last few years has been to concentrate on growing our business in high-growth metropolitan markets in the states surrounding Oklahoma,” Mr. Lybarger said. “As these figures demonstrate, our plan is working.”

BOK is especially bullish on Houston. The company recently bought $424 million-asset CNBT Bancshares in Houston. The deal increased its assets in the state to about $1.8 billion.

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