The China Petrochemical Corporation (Sinopec Group), the country's largest oil refiner, has announced the discovery of more ...

"With the support of these tools and gadgets, China National Petroleum Corporation has drilled through 12 layers of rock, finally ending at a rock formation from 500 million years ago," it said.

China National Petroleum Corp announced on Thursday that it has completed the drilling of the deepest vertical well in Asia, with a borehole reaching a depth of 10,910 meters in one of China's ...