Letterman Bros. Energy v. Banctexas Dallas, N.A802 F.2d 455 5th Cir.1986Check Treatment802 F.2d 455 Letterman Bros. Energyv.BancTexas Dallas, N.A. 85-1446 United States Court of Appeals,Fifth Circuit. 10/9/86 N.D.Tex., 799 F.2d 967