Chinese oil and gas companies surged on Wednesday after new state-owned energy pipeline company China Oil & Gas Pipeline Network Corp (PipeChina) announced its maiden acquisition worth 3.2 billion yuan (US$460 million).PipeChina, formed in December to hold pipeline assets owned by the nation’s three state oil and gas companies, has bought a 100 per cent stake in the Yulin-Jinan pipeline from Sinopec Kantons. It is part of Beijing’s energy sector reform to incentivise domestic exploration and…