On February 22, witnessed by Chinese President Hu Jintao and Kazakh President Nursultan Nazarbayev. CNPC inked an agreement in principal with KazMunayGas on the cooperation project at Urikhtau in Kazakhstan. According to the agreement, the two parties will establish a joint venture on equal equities to jointly develop the Urikhtau gas field, which will secure the gas supply for the phase-ⅡKazakhstan-China Gas Pipeline.