Exhibit 21.1

SUBSIDIARIES OF THE REGISTRANT

—World Fuel Services, Inc., a Texas corporation

—Page Avjet Fuel Co., LLC, a Delaware limited liability company (2)

—Advance Petroleum, Inc., a Florida corporation

—PetroServicios de Mexico S.A. de C.V., a Mexico corporation (3)

—Servicios Auxiliares de Mexico S.A. de C.V., a Mexico corporation (3)

—World Fuel Services (Netherlands) I, L.P., a Florida corporation (13)

—World Fuel Services (Netherlands) II, L.P., a Florida corporation (13)

—Baseops International, Inc., a Texas corporation

—World Fuel Services Company, Inc., a Florida corporation

—World Fuel Services Corporate Aviation Support Services, Inc., a Delaware corporation

—World Fuel Services Canada, Inc., a Delaware corporation

—Resource Recovery of America, Inc., a Florida corporation (1)

—IRC Oil Technics, Inc., a Delaware corporation (1)

—Versant Logix, Inc., a Florida corporation

—Kropp Holdings, Inc., a Maryland corporation

—World Fuel Services (Costa Rica) Limitada, a Costa Rica corporation (1)

—World Fuel Cayman Holding Company II, a Cayman Islands corporation (1)

—Casa Petro S.R.L., a Costa Rica corporation

—PetroServicios de Costa Rica S.R.L., a Costa Rica corporation (5)

—Atlantic Fuel Services, S.R.L., a Costa Rica corporation (1)

—World Fuel Cayman Holding Company I, a Cayman Islands corporation

—World Fuel ApS, a Denmark corporation (1)

—World Fuel Cayman Holding Company IV, a Cayman Islands corporation (1)

—World Fuel Services (Panama) LLC, a Panama corporation (1)(12)

—World Fuel Services International (Panama) LLC, a Panama corporation (1)(12)

—Avcard (Panama) S.R.L., a Panama Corporation (1)(12)

—Trans-Tec International S.R.L., a Costa Rica corporation

—World Fuel International S.R.L., a Costa Rica corporation

—AVCARD Services (BVI) Ltd., a British Virgin Islands corporation

—Marine Energy Arabia Co. LLC, a United Arab Emirate corporation, a majority controlled subsidiary

—World Fuel Services Trading DMCC, a United Arab Emirate corporation

—AVCARD Services (ME) Limited, a United Arab Emirate corporation

—World Fuel Singapore Holding Company I Pte. Ltd., a Singapore corporation

—World Fuel Singapore Holding Company II Pte. Ltd., a Singapore corporation

—World Fuel Services (Singapore) Pte. Ltd., a Singapore corporation

—World Fuel Services (Japan) Co., K.K., a Japan corporation

—Norse Bunkers AS, a Norway corporation

—Oil Shipping (Bunkering) B.V., a Netherlands corporation

—World Fuel Cayman Holding III, a Cayman Islands corporation

—World Fuel Services Finance Company S.a.r.L., a Luxembourg corporation

—Baseops Europe Ltd., a United Kingdom corporation (1)

—AirData Limited, a United Kingdom corporation (1)

—Trans-Tec Services (UK) Ltd., a United Kingdom corporation (1)

—World Fuel Services Limited, a United Kingdom corporation (1)

—Bunkerfuels UK Limited, a United Kingdom corporation (1)

—Henty Oil (Ireland) Limited, a Ireland corporation (1)

—World Fuel Services European Holding Company I, Ltd., a United Kingdom corporation

—World Fuel Services Europe, Ltd., a United Kingdom corporation

—WFS Shared Services (UK) Limited, a United Kingdom corporation

— World Fuel Capital Limited, a United Kingdom corporation

— World Fuel Services (Denmark) ApS, a Denmark corporation

— World Fuel Services CIS LLC, a Russia corporation (11)

— AVCARD Services, Ltd., a United Kingdom corporation

— Tank and Marine Engineering Limited, a United Kingdom corporation

— Henty Oil Limited, a United Kingdom corporation

— Henty Shipping Services Limited, a United Kingdom corporation (1)

— Falmouth Petroleum Ltd., a United Kingdom corporation

—Tramp Holdings Limited, a United Kingdom corporation (1)

—Tramp Group Limited, a United Kingdom corporation (1)

—Tramp Oil & Marine Limited, a United Kingdom corporation (1)

—Tramp Oil Aviation Limited, a United Kingdom corporation (1)

—Tramp Chartering Limited, a United Kingdom corporation (1)

—TOM Oil Limited, a United Kingdom corporation (1)

—Tramp Oil & Marine (Med) Limited, a United Kingdom corporation (1)

—TOM Oil (Broking) Limited, a United Kingdom corporation (1)

—Tramp Oil Fuel Supplies Ltd., a United Kingdom corporation (1)

—Tramp Oil Products Limited, a United Kingdom corporation (1)

—Tramp Oil & Marine (Romania) SRL, a Romania corporation (1)

—Tramp Oil Germany GmbH & Co KG, a Germany partnership

—Tramp Oil Schiffahrts-Undhandelsges mbH & Co., a Germany corporation

—Tramp Oil (Brasil) Limitada, a Brazil corporation (6)

—Tobras Distribuidora de Combustivrs Ltda., a Brazil corporation (7)

—Isthmian Petroleum Supply & Services S.A., a Panama corporation (1)

—Tramp Oil & Marine (Chile) S.A., a Chile corporation (8)

—Tramp Oil & Marine (Argentina) S.A., a Argentina corporation (9)

—WFS Agencia de Naves S.A., a Chile corporation (9)

—World Fuel Services Chile, S.A., a Chile corporation (10)

(1) These corporations are inactive.

(2) This limited liability company is a joint venture company which is equally owned by World Fuel Services, Inc. and Signature Flight Support Corporation, a corporation unrelated to the Registrant. This limited liability company is consolidated into the Registrant as a variable interest entity.

(3) These corporations are owned 50% by Advance Petroleum, Inc. and 50% by World Fuel Services Corporation.

(4) This corporation is owned 50% by Advance Petroleum, Inc. and 50% by Baseops International, Inc.

(5) This corporation is owned 55% by Casa Petro S.R.L. and 45% by World Fuel Services Corporation.

(6) This corporation is owned 99.9% by Tramp Group Limited and 0.1% by World Fuel Services European Holding Company I, Ltd.

(7) This corporation is owned 51% by Tramp Oil (Brasil) Limitada and 49% by NPR Representacoes e Comercio Ltda., a corporation not owned by Registrant.

(8) This corporation is owned 65% by Tramp Group Limited, 34% by World Fuel Services Europe, Ltd. and 1% by World Fuel European Holding Company I, Ltd.

(9) This corporation is owned 99% by Tramp Oil & Marine (Chile) S.A. and 1% by World Fuel Services Europe, Ltd.

(10) This corporation is owned 3% by WFS Agencia de Naves S.A. and 97% by Tramp Oil & Marine (Chile) S.A.

(11) This corporation is owned 99% by World Fuel Services Europe, Ltd. and 1% by World Fuel Services European Holding Company I, Ltd.

(12) These corporations are owned 50% by World Fuel Cayman Holding Company IV and 50% by World Fuel Cayman Holding Company I.

(13) These corporations are owned 49% by Advance Petroleum, Inc. and 51% by World Fuel Services Corporation.