EXHIBIT 23.1 Resignation of Larry O'Donnell, CPA, P.C. July 8, 2010 Gulfstar Energy Corporation 3410 Embassy Drive West Palm Beach, FL 33401 Ph: (561) 703-8974 Dear Mr. McCann, This is to confirm that the client-auditor relationship between Gulfstar Energy Corporation (Commission File Number 333-151398) and Larry O'Donnell, CPA, P.C. has ceased. Sincerely, /s/ Larry O'Donnell, CPA, P.C. - ---------------------------------------- Larry O'Donnell, CPA, P.C. cc: Office of the Chief Accountant SECPS Letter File Securities and Exchange Commission