Hong Kong-listed CNOOC Limited said it has uncovered significant reserves drilling appraisal well Panyu (PY) 34-1-2 in the Eastern South China Sea. Located about 250 km southeast of Hong Kong, PY 34-1-2 is an appraisal well drilled on the PY 34-1 structure in Baiyun Sag. The well was drilled to a total depth of 3,600…