Texas

Southwest Bancorp in Stillwater, Okla., and LegacyTexas Financial Group in Plano have disclosed exposure to a commercial borrower that faces criminal and civil investigations.

Triumph Bancorp in Dallas has agreed to buy ColoEast Bankshares in Lamar, Colo.

Green Bancorp, the Houston lender that went public in 2014, is exploring a sale, according to people with knowledge of the matter, as weakness in its energy loan book pressures its share price.

Comerica in Dallas is warning that its loan-loss provision this quarter will be larger than previously estimated because of falling oil prices.

The Houston-based institution plans to build profit into the repayment agreement for a loan, with profit replacing interest, under the model of other Muslim-based lenders.

Patricia Watson joined the board of the $19 billion-asset Texas Capital on Friday. Watson has been chief information officer at TSYS, a payments processor based in Columbus, Ga., since September.

Comerica in Dallas retroactively cut its fourth-quarter profit by $14 million after discovering that a single borrower — an Arizona company the bank did not identify — was unlikely to repay its loan.

Standard & Poor's Ratings Services is warning banks with high levels of exposure to the energy industry to think twice before ramping up their lending in other sectors.

Evans, soon to retire as CEO of Cullen/Frost Bankers, believes his company is well positioned to withstand the fallout from low oil prices. He is advising his successor to avoid the temptation to panic and focus on the long view.

Pioneer Bank in Dripping Springs, Texas, has promoted Elizabeth Blose to chief financial officer as it works to finalize a merger deal and relocate its headquarters.