OREANDA-NEWS. Kazakhstan Stock Exchange (KASE) today published on its website the methodology of defining the value of shares during their buyback of National company KazMunayGaz JSC (Astana), approved by a decision of the sole shareholder of the company of June 14, 2007, in Russian, at http://www.kase.kz/files/emitters/KMGZ/kmgz_reliz_140615.pdf .