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)

Baseops Mexico S.A. de C.V., a Mexico corporation (1)(4)

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)

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)(13)

World Fuel Services International (Panama) LLC, a Panama corporation (1)(13)

Avcard (Panama)
S.R.L., a Panamanian Corporation (1) (13)

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

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

Marine Energy Arabia Establishment 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 (1)

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

Trans-Tec Services (Japan) Co., K.K., a Japan corporation

Tramp Oil and Marine (Far East) Pte.
Ltd., a Singapore corporation (1)

Norse Bunkers AS, a Norway corporation

Oil Shipping B.V., a Netherlands 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)

Druridge 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

World Fuel Capital Limited, a United Kingdom corporation

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

World Fuel Services CIS LLC, a
Russian corporation (12)



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AVCARD Services, 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 German partnership

Tramp Oil Schiffahrts-Undhandelsges mbH & Co., a German corporation

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

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

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 (10)

World Fuel Services Chile, S.A., a Chile corporation (11)



|(1) |  | These corporations are inactive.
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|(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.
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|(3) |  | These corporations are owned 50% by Advance Petroleum, Inc. and 50% by World Fuel Services Corporation.
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|(4) |  | This corporation is owned 50% by Advance Petroleum, Inc. and 50% by Baseops International, Inc.
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|(5) |  | This corporation is owned 55% by Casa Petro S.A. and 45% by World Fuel Services Corporation.
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|(6) |  | This corporation is owned 99.9% by Tramp Group Limited and 0.1% by World Fuel Services European Holding Company I, Ltd.
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|(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.
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|(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.
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|(9) |  | This corporation is owned 99% by Tramp Oil & Marine (Chile) S.A. and 1% by WFS Agencia de Naves SA.
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|(10) |  | This corporation is owned 99% by Tramp Oil & Marine (Chile) S.A. and 1% by Inversiones SCG SA, a corporation unrelated to the Registrant.
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|(11) |  | This corporation is owned 3% by WFS Agencia de Naves S.A. and 97% by Tramp Oil & Marine (Chile) S.A.
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|(12) |  | This corporation is owned 99% by World Fuel Services Europe, Ltd. and 1% by World Fuel Services European Holding Company I, Ltd.
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|(13) |  | These corporations are owned 50% by World Fuel Cayman Holding Company IV and 50% by World Fuel Cayman Holding Company I.
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