The Sidi El Kilani oil field is located around 190 kilometres south of Tunis. The field was discovered by KUFPEC in March 1989 and brought onstream in September 1991. The field has outperformed even optimistic production forecasts, sustaining production well beyond original expectations. The field is operated by CTKP, a joint stock company which does not own any of the assets and operates the field on a cash call basis. The operator believes that it can continue to find additional reserves through continued development drilling. Well stimulation, optimisation and infill drilling have maintained production levels.