China National Petroleum Corp, China's largest oil and gas producer, said on Monday it has finished drilling Asia's deepest oil well in the city of Mianyang in Southwest China's Sichuan province.

PetroChina Southwest Oil and Gasfield Co, a subsidiary of CNPC, said the Pengshen-6 well, the deepest on land in Asia so far with a current depth of 9,026 meters, will be used to explore oil and gas resources 8,000 meters underground.

Luo Pingya, academician at the Chinese Academy of Engineering, was quoted by the paper as saying the success of the drilling shows China's overall level of deep well drilling has been improving in recent years and ranks among the top in the world.

zhengxin@chinadaily.com.cn