BANCTEXAS <BTX> TO SELL AFFILIATE BancTEXAS Group Inc said it has signed a definitive agreement to sell its BancTEXAS Sulphur Springs affiliate to a group of local investors led by Gene Watson for a cash amount equal to book value at the time of the sale, subject to regulatory approvals. The unit had assets of 18.2 mln dlrs as of September 30. BancTEXAS said it plans to concentrate on its primary market, the Dallas area.