On 11 June 2018, partners Total, Repsol and Sonatrach signed a new concession agreement and gas sales agreement for the Tin Fouye Tabankort (TFT) licence, located in the Illizi Basin. The contract is an effective 25-year extension to the concession, but has been signed as a "parallel" contract under the current 2005 Hydrocarbons Law. Ratification by the authorities is pending. The existing licence operates under the 1986 Hydrocarbon Law. It was originally signed by Repsol and Total in 1996 and is due to expire on 31 May 2019. The block contains the TFT Field, originally discovered in the Ordovician in the early 1960s. The oil leg was brought onstream in 1963, with the gas & condensate legs tied-in during 1999, as part of the concession agreement. The extension will see the partners invest ~US$ 324 million to maintain current production levels at around 80,000 boe/d and ~280 MMcfg/d for a further six years. Up to 11 new wells will be drilled and a new compressor unit installed. Remaining reserves are estimated at ~250 MMboe, with a remaining gas reserve of between 0.5-1 Tcf. The concession is operated by the Groupement TFT consortium, with equity currently split between Repsol (30%), Total (35%) and Sonatrach (35%). Under the new agreement the equity will be re-assigned. Sonatrach will gain its mandatory 51% stake, whilst Total will hold 26.4% and Repsol 22.6%. The conversion of older contracts to new "parallel" terms under the 2005 Hydrocarbon Law, has become more prevalent in recent times. The TFT conversion is the fourth such amendment inside 12 months. It follows on from Sonatrach's Hassi Messaoud II licence in late 2017, CEPSA's Rhourde Yacoub block in February 2018 and the GTIM consortium's Timimoun conversion in early June 2018. 
On 11 June 2018, partners Total, Repsol and Sonatrach signed a new concession agreement and gas sales agreement for the Tin Fouye Tabankort (TFT) licence, located in the Illizi Basin.