Pennzoil made an offer to buy Getty Oil.After much negotiation, a deal was announced through a press release to the public.Before the lawyers for both sides could complete the paperwork,and before any documents were signed, Texaco appeared and offered Getty Oil's shareholders a better deal.Getty turned its attention to Texaco, leaving Pennzoil behind.Pennzoil decided to sue Texaco for wrongful interference with a contractual relationship.What will Pennzoil have to prove to be successful?Will it be successful?What, if anything, can Pennzoil sue Getty for?