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| COUNTRY | CUSTOMER | LOCATION | BUSINESS |
| 1. GERMANY | DEUTAG | BAD BENTHEIM | DRILLING CONTR. |
| 2. | BENTEC | BAD BENTHEIM | RIG BUILDER |
| 3. | ITAG | CELLE | DRILLING CONTR. |
| 4. | RWE - DEA | WIETZE | OIL COMPANY |
| 5. | UGS | MITTENWALDE | DRILLING CONTR. |
| 6. | ERDÖL-ERDGAS | SALZWEDEL | WORKOVER CO. |
| 7. | WIRTH GmbH | ERKELENZ | EQUIPIPMENT MANUFACTURER |
| 8. | BEB | HANNOVER | OIL COMPANY |
| 9. ROMANIA | PETROM R.A. | BUKAREST | OIL COMPANY |
| 10. | PETROMAR | CONSTANTA | OFF-SHORE DRILLING |
| 11. | ROMPETROL | BUKAREST | INTERN DRILLING CONTRACTOR |
| 12. | FORADEX | BUKAREST | DRILLING CONTR. |
| 13. | UPETROM | PLOIESTI | RIG BUILDER |
| 14. | ROMGAS R.A. | MEDIAS | GAS COMPANY |
| 15. BULGARIA | OIL & GAS CO. | PLEVEN | DRILLING CONTR. |
| 16. | BULGARGEOMIN | SOFIA | INTERN DRILLING CONTRACTOR |
| 17. POLAND | OIL & GAS CO. | ZIELONA GORA | DRILLING CONTR. |
| 18. | OIL & GAS CO. | JASLO | DRILLING CONTR. |
| 19. | OIL & GAS CO. | PILA | DRILLING CONTR. |
| 20. | OIL & GAS CO. | KRAKOW | DRILLING CONTR. |
| 21. | PETROBALTIC | GDANSK | OIL COMPANY |
| 22. | OIL & GAS CO. | WOLOMIN | DRILLING & SERVICE CO. |
| 23. HUNGARY | ROTARY DRILLING CO. | NAGYKANISZA | DRILLING CONTR. |
| 24. | MB DRILLING CO. | SZOLNOK | DRILLING CONTR. |
| 25. CZECH REPUBLIC | MORAVASKE NAFTOVE DOLY | HODONIN | OIL COMPANY |
| 26. | KaC | HODONIN | CEMENTING & LOGGING COMPANY |
| 27. | GEOLOGICKI PRUZKUM | OSTRAVA | DRILLING CONTR. |
| 28. SLOVAKIA | NAFTA A.S. | GBELY | OIL & GAS CO. |
| 29. TUNESIA | M.P. ZARAT | TUNIS | OIL COMPANY |
| 30. | EUROGAZ | TUNIS | GAS COMPANY |
| 31. | O.F.I.S. | TUNIS | DRILLING CONTR. |
| 32. TURKEY | T.P.A.O | ANKARA | OIL & GAS CO. |
| 33. YEMEN | BULGARGEOMIN | SANA | DRILLING CONTR. |
| 34. CROATIA | INA NAFTAPLIN | ZAGREB | OIL & GAS CO. |
| 35. | CROSCO | ZAGREB | DRILLING CONTR. |
| 36. YUGOSLAVIA | NAFTA GAS | NOVI SAD | OIL & GAS CO. |
| 37. SLOVENIA | NAFTA LENDAVA | LENDAVA | OIL & GAS CO. |
| 38. ITALY | CROSCO | RAVENNA | DRILLING CONTR. |
| 39. EGYPT | CROSCO | CAIRO | DRILLING CONTR. |