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.
If what you want is a quotation or offer, then sending a letter of intent makes you look ignorant while requesting a quotation will generally at least make you look like you know what it is that you want. And what you want, after all, is a price quote. Hence you want to request a price quote, via a request for quotation.