CALIFORNIA Southern Valley Specialty 6914 Downing Avenue Suite C Bakersfield, California 93308 PHONE    (661) 589-7040 FAX           (661) 589-5496 KANSAS Southwest Energy Products 131 S. Country Estates Road Bldg. 2 Shop 1 Liberal, Kansas 67901 PHONE    (620) 626-6080 FAX           (620) 626-6095 LOUISIANA Lafayette - Southwest Oilfield Products 113 Row One Canebrake Lafayette, Louisiana 70508 PHONE    (337) 234-5164 FAX           (337) 234-7088 Southern Specialty & Supply 212 Magnolia Houma, Louisiana 70360 PHONE    (985) 672-3301 FAX           (985) 872-3302 MISSISSIPPI Natchez - Southwest Oilfield Products 396 Liberty Natchez, Mississippi 39120 PHONE    (601) 442-4415 FAX           (601) 442-3040 NEW MEXICO DC Sales 130 North Grimes Hobbs, New Mexico 88240 PHONE    (505) 393-2757 FAX           (505) 391-0010 Southwest Bit & Tool Co. 5773 US Hwy. 64 Farmington, New Mexico 87401 PHONE    (505) 632-1452 FAX           (505) 632-0438

NORTH DAKOTA Chrisco Oilfield Specialty 2109 Second Avenue West Williston, North Dakota 58802 PHONE    (701) 572-1883 FAX           (701) 572-6516 OHIO RDM Equipment 1141 Mechanicsburg Road Wooster, Ohio 44691 PHONE    (330) 264-8808 FAX           (330) 262-0499 OKLAHOMA Elk City- Southwest Oilfield Products 107 East 20th Elk City, Oklahoma 73644 PHONE    (580) 225-0103 FAX           (580) 225-2674 Oklahoma City - Southwest Oilfield Products 2610-B South Central Oklahoma City, Oklahoma 73129 PHONE    (405) 616-5899 FAX           (405) 616-5909 TEXAS Cleburne - Southwest Oilfield Products 1812 B. North Main Cleburne, Texas 76031 PHONE    (817) 645-9027 FAX           (817) 645-9075 EC Tool & Supply 242 South 11th Street Abilene, Texas 79602 PHONE    (325) 673-3781 FAX           (325) 673-1035

TEXAS (Continued) Houston - Southwest Oilfield Products 10340 Wallisville Road Houston, Texas 77013 PHONE       (713) 675-7541 TOLL FREE (800) 392-4600 FAX              (713) 675-5206 Jack Cowley Supply 1902 South Hwy. 281 Alice, Texas 78332 PHONE       (361) 668-6031 FAX              (361) 668-3019 Kilgore - Southwest Oilfield Products 307 Commerce St. South Kilgore, Texas 75662 PHONE       (903) 984-5882 FAX              (903) 988-0882 Odessa - Southwest Oilfield Products 1610 South Marlin Odessa, Texas 79763 PHONE       (432) 332-1968 FAX              (432) 332-1982 UTAH Allen Sales & Service 1599 East 1500 South Vernal, Utah 84078 PHONE       (435) 789-2615 FAX              (435) 789-3001 WYOMING Great West Specialty 7195 West Barton Casper, Wyoming 82644 PHONE       (307) 473-9046 FAX              (307) 266-3831 Great West Specialty 302 Commerce 2A Gillette, Wyoming 82718 PHONE       (307) 686-2181 FAX              (307) 686-9263

AFRICA GESCO Group 2033 El-Meraag Building, 2 Beside Carrefour, Qatamya Road Cairo, Egypt PHONE    +20-22-52-04523 FAX           +20-22-52-04521 ASIA Prabhu Oilfield Services PVT Ltd. C-1 Beachview, 77 Chimbai Rd. Bandra, Bombay, India 400 040 PHONE    +91-22-67-104945 FAX           +91-22-26-050962 EUROPE AMTEQ Bohrzubehor GMBH Heineckes Feld 20 Celle, Germany D-29227 PHONE    +49-51-41-980400 FAX           +49-51-41-980402 Eurotech Spolka z o. o. ul. Wojska Polskiego 3 39-300 Mieiec, Poland PHONE    +48-17-78-87760 FAX           +48-17-78-80273 Mento A/S P.O. Box 44 Kontinentalveien 22 4056 Tanager, Norway PHONE    +47-51-64-8600 FAX           +47-51-64-8601 Petrind Srl Code Via Tiburtina 326 65129 Pescara Italy PHONE    +39-08-54-311756 FAX           +39-08-55-2093

MEXICO Suministros Industriales America, S.A. de C.V. Honduras No 750 Col. Anzalduas Reynosa, Tamps. 88630 PHONE    +52-89-99-221273 FAX           +52-89-99-225762 Suministros Industriales America, S.A. de C.V. Calle 49 No. 10 Col. Pallas Cd. Del Carmen Camp. PHONE    +52-93-82-861414 FAX           +52-93-82-861407 MIDDLE EAST Al Roumi General Trading Est. P.O. Box 45333 Abu Dhabi, UAE PHONE    +97-12-67-29901 FAX           +97-12-67-29771 Driltools International FZCO P.O. Box 25314 Dubai, UAE PHONE    +97-14-29-90038 FAX           +97-14-29-90048 International Business Development Co. LLC P.O. Box 1036 Postal Code 133 Al Khuwair, Sultanate of Oman PHONE    +96-82-44-87147 FAX           +96-82-44-86401 SOUTH AMERICA Columbia Agent Calle 13 No 26-27 Bogota, D.C. - Columbia PHONE    +57-1-360-6080 FAX           +57-1-371-3691 PENCO Ltd. Casilla 4227 Santa Cruz, Bolivia PHONE    +59-17-16-34875 FAX           +59-13-35-35180 PETROSPEC Industria, Ltd. Estrada Joao Batista Quaresma, 44 Sala 01 Bairro Novo Cavaleiros Macae-RJ-Brazil 27930-480 PHONE    +55-21-22-628176 FAX           +55-21-22-620237

SOUTH AMERICA (Continued) Respresentacion y Servicios Tecnicos Srl (RESERTEC) Av. San Borja Norte 1263 Lima, 41 Peru PHONE       +51-14-36-6013 FAX              +51-14-36-6015 SW Expendables and Fluid Ends, CA Anaco, Anzoategui, Venezuela PHONE       +58-28-24-252882 FAX              +58-28-24-250809 SOUTH EAST ASIA Kim Heng Marine and Oilfield Pte. Ltd. 4 Penjuru Lane Singapore 609185 PHONE       +65-67-77-9990 FAX              +65-67-78-9990 Spectrum Scientific Unit 102 Southgate Building Finance Drive, Madrigal Business Park Ayala Alabang, Muntinlupa City, Philippines PHONE       +63 (2) 771-2039 FAX              +63 (2) 809-0012 Yick Cheong Petrotech Suite 1003, Block B, Kerrie Plaza, No. 180 BeiYuan Road, Chaoyang District Beijing, 100101 People's Republic of China PHONE       +86-10-64-973828 FAX              +86-10-64-946668 UNITED KINGDOM Midcontinent Limited Blackness Road Altens Industrial Estate Aberdeen, AB12 3LH PHONE       +44-1224-874906 CELL           +44-77-66-815129 FAX              +44-1224-898386 Tim Sanderson, Manager Eastern Hemisphere Sales PO Box 379 Tonbridge, Kent TN 9 9AB, England PHONE       +44-18-92-835382 CELL           +44-77-66-815129 FAX              +44-18-92-837578 E-MAIL  tsanderson@glb-energy.com

CALIFORNIA Southern Valley Specialty 6914 Downing Avenue Suite C Bakersfield, California 93308 PHONE    (661) 589-7040 FAX           (661) 589-5496

KANSAS Southwest Energy Products 131 S. Country Estates Road Bldg. 2 Shop 1 Liberal, Kansas 67901 PHONE    (620) 626-6080 FAX           (620) 626-6095

LOUISIANA Lafayette - Southwest Oilfield Products 113 Row One Canebrake Lafayette, Louisiana 70508 PHONE    (337) 234-5164 FAX           (337) 234-7088 Southern Specialty & Supply 212 Magnolia Houma, Louisiana 70360 PHONE    (985) 672-3301 FAX           (985) 872-3302

MISSISSIPPI Natchez - Southwest Oilfield Products 396 Liberty Natchez, Mississippi 39120 PHONE    (601) 442-4415 FAX           (601) 442-3040

NEW MEXICO DC Sales 130 North Grimes Hobbs, New Mexico 88240 PHONE    (505) 393-2757 FAX           (505) 391-0010 Southwest Bit & Tool Co. 5773 US Hwy. 64 Farmington, New Mexico 87401 PHONE    (505) 632-1452 FAX           (505) 632-0438

NORTH DAKOTA Chrisco Oilfield Specialty 2109 Second Avenue West Williston, North Dakota 58802 PHONE    (701) 572-1883 FAX           (701) 572-6516

OHIO RDM Equipment 1141 Mechanicsburg Road Wooster, Ohio 44691 PHONE    (330) 264-8808 FAX           (330) 262-0499

OKLAHOMA Elk City- Southwest Oilfield Products 107 East 20th Elk City, Oklahoma 73644 PHONE    (580) 225-0103 FAX           (580) 225-2674 Oklahoma City - Southwest Oilfield Products 2610-B South Central Oklahoma City, Oklahoma 73129 PHONE    (405) 616-5899 FAX           (405) 616-5909

TEXAS Cleburne - Southwest Oilfield Products 1812 B. North Main Cleburne, Texas 76031 PHONE    (817) 645-9027 FAX           (817) 645-9075 EC Tool & Supply 242 South 11th Street Abilene, Texas 79602 PHONE    (325) 673-3781 FAX           (325) 673-1035 Houston - Southwest Oilfield Products 10340 Wallisville Road Houston, Texas 77013 PHONE       (713) 675-7541 TOLL FREE (800) 392-4600 FAX              (713) 675-5206 Jack Cowley Supply 1902 South Hwy. 281 Alice, Texas 78332 PHONE       (361) 668-6031 FAX              (361) 668-3019 Kilgore - Southwest Oilfield Products 307 Commerce St. South Kilgore, Texas 75662 PHONE       (903) 984-5882 FAX              (903) 988-0882 Odessa - Southwest Oilfield Products 1610 South Marlin Odessa, Texas 79763 PHONE       (432) 332-1968 FAX              (432) 332-1982

UTAH Allen Sales & Service 1599 East 1500 South Vernal, Utah 84078 PHONE       (435) 789-2615 FAX              (435) 789-3001

WYOMING Great West Specialty 7195 West Barton Casper, Wyoming 82644 PHONE       (307) 473-9046 FAX              (307) 266-3831 Great West Specialty 302 Commerce 2A Gillette, Wyoming 82718 PHONE       (307) 686-2181 FAX              (307) 686-9263

MEXICO Suministros Industriales America, S.A. de C.V. Honduras No 750 Col. Anzalduas Reynosa, Tamps. 88630 PHONE    +52-89-99-221273 FAX           +52-89-99-225762 Suministros Industriales America, S.A. de C.V. Calle 49 No. 10 Col. Pallas Cd. Del Carmen Camp. PHONE    +52-93-82-861414 FAX           +52-93-82-861407

SOUTH AMERICA Columbia Agent Calle 13 No 26-27 Bogota, D.C. - Colombia PHONE    +57-1-360-6080 FAX           +57-1-371-3691 PENCO Ltd. Casilla 4227 Santa Cruz, Bolivia PHONE    +59-17-16-34875 FAX           +59-13-35-35180 PETROSPEC Industria, Ltd. Estrada Joao Batista Quaresma, 44 Sala 01 Bairro Novo Cavaleiros Macae-RJ-Brazil 27930-480 PHONE    +55-21-22-628176 FAX           +55-21-22-620237 Respresentacion y Servicios Tecnicos Srl (RESERTEC) Av. San Borja Norte 1263 Lima, 41 Peru PHONE       +51-14-36-6013 FAX              +51-14-36-6015 SW Expendables and Fluid Ends, CA Anaco, Anzoategui, Venezuela PHONE       +58-28-24-252882 FAX              +58-28-24-250809

EUROPE AMTEQ Bohrzubehor GMBH Heineckes Feld 20 Celle, Germany D-29227 PHONE    +49-51-41-980400 FAX           +49-51-41-980402 Eurotech Spolka z o. o. ul. Wojska Polskiego 3 39-300 Mieiec, Poland PHONE    +48-17-78-87760 FAX           +48-17-78-80273 Mento A/S P.O. Box 44 Kontinentalveien 22 4056 Tanager, Norway PHONE    +47-51-64-8600 FAX           +47-51-64-8601 Petrind Srl Code Via Tiburtina 326 65129 Pescara Italy PHONE    +39-08-54-311756 FAX           +39-08-55-2093 Midcontinent Limited Blackness Road Altens Industrial Estate Aberdeen, AB12 3LH PHONE       +44-1224-874906 CELL           +44-77-66-815129 FAX              +44-1224-898386 Tim Sanderson, Manager Eastern Hemisphere Sales PO Box 379 Tonbridge, Kent TN 9 9AB, England PHONE       +44-18-92-835382 CELL           +44-77-66-815129 FAX              +44-18-92-837578 E-MAIL  tsanderson@glb-energy.com

AFRICA GESCO Group 2033 El-Meraag Building, 2 Beside Carrefour, Qatamya Road Cairo, Egypt PHONE    +20-22-52-04523 FAX           +20-22-52-04521

MIDDLE EAST Al Roumi General Trading Est. P.O. Box 45333 Abu Dhabi, UAE PHONE    +97-12-67-29901 FAX           +97-12-67-29771 Driltools International FZCO P.O. Box 25314 Dubai, UAE PHONE    +97-14-29-90038 FAX           +97-14-29-90048 International Business Development Co. LLC P.O. Box 1036 Postal Code 133 Al Khuwair, Sultanate of Oman PHONE    +96-82-44-87147 FAX           +96-82-44-86401

ASIA Prabhu Oilfield Services PVT Ltd. C-1 Beachview, 77 Chimbai Rd. Bandra, Bombay, India 400 040 PHONE    +91-22-67-104945 FAX           +91-22-26-050962

SOUTHEAST ASIA Kim Heng Marine and Oilfield Pte. Ltd. 4 Penjuru Lane Singapore 609185 PHONE       +65-67-77-9990 FAX              +65-67-78-9990 Spectrum Scientific Unit 102 Southgate Building Finance Drive, Madrigal Business Park Ayala Alabang, Muntinlupa City, Philippines PHONE       +63 (2) 771-2039 FAX              +63 (2) 809-0012 Yick Cheong Petrotech Suite 1003, Block B, Kerrie Plaza, No. 180 BeiYuan Road, Chaoyang District Beijing, 100101 People's Republic of China PHONE       +86-10-64-973828 FAX              +86-10-64-946668