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EXHIBIT 21.1
CORE LABORATORIES N.V.
INVESTMENT IN SUBSIDIARY LISTING
Percentage
Co. No. Name Legal Seat Ownership
- ------ ------------------------------------------------------- ------------------------------------ -------------
21 Core Laboratories Resources, N.V. Curacao, Netherlands Antilles 100%
23 Core Laboratories International Licensing N.V. Curacao, Netherlands Antilles 100%
25 Core Laboratories International Trading N.V. Curacao, Netherlands Antilles 100%
27 Core Laboratories I.P. Inc. Curacao, Netherlands Antilles 100%
35 Core Laboratories Holding Inc. Curacao, Netherlands Antilles 100%
48 Core Laboratories Middle East Services BV Curacao, Netherlands Antilles 100%
49 Core Export Sales, Inc. Bridgetown, Barbados 100%
50 Core Laboratories LP Delaware, United States 100%
52 Core Laboratories Canada Limited Alberta, Canada 100%
53 PT Corelab Indonesia Jakarta, Indonesia 70%
55 Core Laboratories SDN BHD Kuala Lumpur, Malaysia 100%
56 Core Laboratories Australia PTY LTD Perth, Australia 100%
62 Core Laboratories International B.V. Amsterdam, The Netherlands 100%
63 Core Laboratories Sales N.V. Curacao, Netherlands Antilles 100%
64 Core Laboratories (U.K.) Limited London, United Kingdom 100%
65 Core Laboratories Netherlands B.V. Amsterdam, The Netherlands 100%
66 Corelab Nigeria Limited Lagos, Nigeria 100%
70 Core Laboratories Venezuela S.A. Caracas, Venezuela 100%
73 Core Laboratories Mexico Holding B.V. Netherlands 100%
74 Corelab Brasil Ltda Brasil 100%
75 Core Laboratories (Barbados) Ltd. Curacao, Netherlands Antilles 100%
100 Saybolt International B.V. Vlaardingen, The Netherlands 100%
101 Saybolt Holding B.V. Vlaardingen, The Netherlands 100%
102 Saybolt Denmark A/S Copenhagen, Denmark 100%
103 Saybolt van Duyn GmbH Essen, Germany 100%
104 Saybolt Espana S.A. Madrid, Spain 100%
105 Saybolt Estonia Ltd. Tallin, Estonia 90%
106 Saybolt Finland Oy Hamina, Finland 100%
107 Saybolt France S.A. Port-Le-Bouc, France 99.5%
108 Saybolt Italia S.R.L. Siracusa, Italy 100%
109 Saybolt Malta Ltd. Kalafran, Malta 100%
111 Saybolt Greece, Ltd. Athens, Greece 100%
112 Saybolt (Portugal) Inspeccao de Productos Petroliferos, Lda. Lisbon, Portugal 100%
115 Saybolt South Africa PTY LTD Cape Town, South Africa 100%
116 Saybolt Sverige AB Gothenburg, Sweden 100%
117 Saybolt Thailand Ltd. Bangkok, Thailand 100%
118 Saybolt United Kingdom Ltd. Purfleet, United Kingdom 100%
119 Saybolt Meteorology & Instrumentation B.V. Vlaardingen, The Netherlands 100%
120 Saybolt Nederland B.V. Vlaardingen, The Netherlands 97.5%
122 Saybolt North American Holding B.V. Vlaardingen, The Netherlands 100%
123 Saybolt de Mexico S.A. de C.V. Coatzacoalcos, Mexico 100%
130 Saybolt LP New Jersey, United States 100%
132 Core Laboratories Panama, S.A. Panama City, Panama 100%
134 Saybolt Analyt Holding B.V. Vlaardingen, The Netherlands 90%
137 Saybolt Evrasia ZAO Moscow, Russia Federation 90.1%
138 Saybolt-Ukraine Odessa, Ukraine 100%
139 Saybolt Bulgaria Ltd Bulgaria 90%
141 Saybolt Baltija, Ltd. Klaipeda, Lithuania 88.2%
142 Saybolt Latvia Ventspils, Latvia 88.2%
145 Saybolt de Ecuador S.A. Quito, Ecuador 100%
148 Saybolt Bahamas Ltd. Freeport, Bahamas 100%
151 Saybolt de Costa Rica, S.A. San Jose, Costa Rica 100%
152 Saybolt West Indies N.V. Kingston, Jamaica 100%
153 Saybolt Colombia Ltda. Barranquilla, Colombia 95%
155 Saybolt Aruba N.V. Aruba, Netherlands Antilles 100%
156 Saybolt Bonaire N.V. Bonaire, Netherlands Antilles 100%
158 Saybolt Curacao N.V. Curacao, Netherlands Antilles 100%
159 Saybolt Trinidad & Tobago Ltd. Marabella, Trinidad 100%
160 Saybolt Eastern Hemisphere B.V. Vlaardingen, The Netherlands 100%
162 Saybolt Bahrein Klaipeda, Lithuania 100%
165 Saybolt (M) SDN BHD Kuala Lumpur, Malaysia 100%
166 PT Saybolt Indonesia Jakarta, Indonesia 65%
167 Saybolt Saudi Arabia London, United Kingdom 45%
168 Saybolt Baltic OU Klaipeda, Lithuania 100%
170 Saybolt Azerbaijan, Ltd. Azerbaijan 100%
171 Saybolt Azerbaijan BV Azerbaijan 100%
175 Core Laboratories El Salvador S.A. de C.V. El Salvador 100%
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CORE LABORATORIES N.V.
INVESTMENT IN SUBSIDIARY LISTING
Percentage
Co. No. Name Legal Seat Ownership
- ------ ------------------------------------------------------- ------------------------------------ -------------
176 Saybolt Iran B.V. Vlaardingen, The Netherlands 100%
177 Saybolt Belgium Belgium 100%
178 Saybolt Kazakhstan B.V. Rotterdam, Netherlands 100%
179 Saybolt (Tianjin) Meteorology & Instrumentation Company China 100%
181 Saybolt Latin America Holding B.V. Vlaardingen, The Netherlands 100%
182 Saybolt Qatar London, United Kingdom 100%
183 Core Laboratories Angola Ltd. Angola 100%
188 Saybolt (Singapore) PTE LTD Singapore 100%
190 Core Laboratories (H.K.) Limited Hong Kong 100%
195 E.W. Saybolt & Co. S.A. Panama City, Panama 100%
200 Owen Oil Tools LP Texas, United States 100%
202 Organic Technology LP Texas, United States 100%
204 Jaex de Mexico, S.A. de C.V. Tabasco, Mexico 100%
205 Owen Oil Tools de Venezuela, C.A. Anaco, Anzoategui, Venezuela 100%
206 Beukenwoude, B.V. Amsterdam, Netherlands 100%
210 Owen Compliance Services, Inc. Texas, United States 100%
212 Owen de Mexico S.A. de C.V. Mexico 100%
213 Owen Oil Tools (U.K.) Ltd. Croydon, United Kingdom 100%
220 The Petrak Group S.A. Zug, Switzerland 100%
222 Saybolt Services Ltd. (formerly Petrak Services Ltd.) London, United Kingdom 100%
226 Core Laboratories LLP (Kazakhstan) Delaware, United States 100%
231 DP Saybolt Turkmenistan (formerly Petrak Turkmenistan Ltd.) Turkmenbashi, Turkmenistan 100%
251 AGI Mexicana, S.A. de C.V. Mexico City, Mexico 100%
260 Petroleum Analysts ZAO Moscow, Russia Federation 98%
261 Lab Technics Texas, United States 100%
262 IP Saybolt (Belorussia) Vlaardingen, The Netherlands 100%
270 Saybolt Test OOO Bashkortostan, Russian Federation 54%
273 Saybolt Armenia Yerevan, Armenia 90%
276 FSaybolt Bashkortostan Bashkortostan, Russian Federation 54%
277 SP TOO Saybolt Kazakhstan Kazakhstan 81%
278 Saybolt Mongol JLC Vlaardingen, The Netherlands 100%
290 Core Lab de Mexico, S.A. de C.V. Mexico City, Mexico 100%
292 Core Lab Operations S.A. de C.V. Mexico 100%
293 Pro Technics de Mexico, S.A. de C.V. Mexico 100%
294 Core Lab Services S.A. de C.V. Mexico 100%
296 Core Laboratories Management Villahermosa, Mexico 100%
310 TomoSeis Corporation United States 100%
320 Core Petrophysics, Inc. United States 100%
325 Stim Lab, Inc. Oklahoma, United States 100%
350 Core Laboratories Global N.V. Curacao, Netherlands Antilles 100%
370 Coherence Technology Company, Inc. Denver, Colorado 100%
371 Coherence Technology (U.K.) Ltd. Edinburgh, United Kingdom 100%
375 CTC Pulsonic Nigeria Limited Lagos, Nigeria 80%
381 Production Enhancement Corporation United States 100%
387 PENCOR de Mexico S.A. de C.V. Mexico 100%
388 PENCOR de Venezuela, C.A. Venezuela 100%
389 PENCOR Ltd. United Kingdom 100%
391 PENCOR International Ltd. Jersey Channel Islands 100%
400 Scott Pickford Limited Croydon, United Kingdom 100%
402 Scott Pickford Group Limited Croydon, United Kingdom 100%
411 FE & FEFH Holdings, Inc. Calgary, Canada 100%
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