In Abraham Inv. Co. v. Payne Ranch, Inc., 968 S.W.2d 518 (Tex. App.-Amarillo 1998, pet. denied), plaintiff Abraham had a contract to purchase a ranch from defendant Payne. That contract was subject to a pre-existing preferential right of purchase contained in a contract between Payne and Campbell, which Campbell exercised to purchase the ranch. Defendants asserted Abraham lacked standing to sue for tortious interference, as he was not party to the Payne-Campbell contract. The court disagreed: whether Abraham was entitled to fulfillment of the direct contract to purchase with Payne turned on whether the third-party contract was properly exercised. Id. at 523-24.