On 11 June 2018 Total reported that it signed a new concession contract with Sonatrach, Repsol and Alnaft on the Tin Fouye Tabankort (TFT) field, Illizi Basin, south-east of Algeria. The new contract will become effective upon the approval by the Algerian authorities and replace the existing one which is due to expire in 2019. It will allow to continue production at the field for another 25 years. Interests in the new concession are: Sonatrach 51%, Total 26.4% and Repsol 22.6%.  The partners will carry out drilling and investments required to develop additional reserves estimated at more than 250 million barrels of oil equivalent. These investments will allow to maintain the production of the field which is currently over 80,000 b/d of oil equivalent for six years.  The new concession is a result of a framework agreement signed last year. In April 2017 Sonatrach and Total signed a framework agreement strengthening the existing partnership between the two companies. The agreement was signed by Sonatrachâs CEO Abdelmoumen Ould Kaddour and Totalâs CEO Patrick Pouyanne. It established a new contractual framework for the Timimoun gas development, enabled continued joint operations on the TFT gas-condensate field, provided for the joint development of a new project and arranged a settlement of outstanding differences between the two companies.  Background information  The TFT field is a giant gas and oil field and is considered as one of the largest hydrodynamic trap in the world. The field was discovered in February 1961, with new-field wildcat Tin Fouye 1. The two main reservoirs are the Upper Ordovician Gara Louki Formation (oil & gas) at a depth of 1,400 - 1,500m and in the Lower Emsian F6 Sandstone Unit (oil) at 750m. The main Gara Louki reservoir has been subdivided into two superimposed geological units which are in vertical pressure communication. The upper unit has a coarser facies and extends over the whole of the reservoir with a constant thickness of between 10 and 20m from west to east. The lower unit is more laterally discontinuous with rapid lateral facies changes and displaying much poorer reservoir characteristics. Gross reservoir thickness of the Gara Louki Formation varies from 0 - 59m.  Oil production started in 1961 from the F6 sandstone reservoir, but output went into a gradual decline. Water injection began in 1980 in the Ordovician reservoir.   On 28 January 1995, Sonatrach, Total and Repsol announced that they had signed a 20 year production-sharing contract for the development of the gas, condensate and LPG reserves of the TFT field. Commercial gas production started in March 1999.
Tin Fouye Tabankort (TFT)  awarded by Sonatrach 51%, Total  26,4%, Repsol 22,6%, Alnaft has a carried interest 