EXHIBIT 21 SUBSIDIARIES OF PRIDE PETROLEUM SERVICES, INC. STATE OR OTHER JURISDICTION OF SUBSIDIARY INCORPORATION OR ORGANIZATION - ---------- ------------------------------ Pride Petroleum Services Texas of California, Inc. Pride Petroleum Services Texas of Louisiana, Inc. Sierra Production Services, Inc. California Petroleum Supply Company Texas Larcom Insurance, Ltd. Bermuda Pride International, Inc. Texas Pride International, Ltd. British Virgin Islands Pride [Limassol] Limited Cyprus Pride [Cyprus] Limited Cyprus Pride International JSC Russia Pride Petrotech S.A.M.P.I.C. Argentina Pride International, C.A. Venezuela Pride South America Ltd. British Virgin Islands Pride de Venezuela Venezuela Pride Vulcan (Joint Venture) British Virgin Islands Ranger Well Service Texas Pride Offshore, Inc. Delaware Xpert Enterprises, Inc. New Mexico Xpert Well Service, Inc. New Mexico B&M Service Co., Inc. New Mexico Marlin Colombia Drilling Co., Inc. Cayman Islands Pride Peru, S.A. Peru