At the end you should sign off with "sincerely yours" or any other related salutation. If you are writing a letter of intent for graduate school then it would have a different content. First of all letter of intent would start with your name, address, contact number and email address. After you have mentioned the date, you should then add a salutation like "Dear Sir/Mam".
However, during the same period, on January 6, another oil company, Texaco, came into the picture as it publicly announced that Texaco and Getty Oil would merge. Pennzoil protested the proposed merger, and Getty Oil filed a law suit for the court to issue a declaratory judgment that it was not bound by any contract it had with Pennzoil.