NEW YORK - The Official Committee of Unsecured Creditors in the Chapter 11 bankruptcy case of Getty Petroleum Marketing Inc. (GPMI) on April 20 filed a brief arguing that the U.S. Bankruptcy Court for the Southern District of New York should issue an order rejecting the master lease between GPMI and the entity that manages the debtor's properties (In Re: Getty Petroleum Marketing Inc., No. 11-15606, Chapter 11, S.D. N.Y. Bkcy.).