Supreme Court of Texas December 1997 casesHammerly Oaks, Inc. v. EdwardsMurphy v. CampbellVelsicol Chemical Corp. v. WinogradSchlumberger Technology Corp. v. SwansonVerburgt v. DornerSpohn Health System Corp. v. SilvaDallas Market Center Development Co. v. LiedekerCity of Tyler v. LikesNUNU, IN RE