Today in Astana (the capital of the Republic of Kazakhstan) Vagit Alekperov, President of OAO LUKOIL, Uzakbai Karabalin, President of National Oil & Gas Company KazMunaiGaz, and Bakhytzhan Khasanov, General Director of KazMunaiTeniz have signed an agreement under which LUKOIL acquires a 50% share in the PSA for the Tyub-Karagan offshore. Also, the agreement to conduct a geological survey on the Atashsky sector on parity basis has been signed.