Beijing - PetroChina vice-chairperson Liao Yongyuan is being investigated for "serious disciplinary violations", the company said, as an anti-corruption crackdown reaches deeper into the Chinese state-owned oil giant.
In a brief statement issued late on Monday, PetroChina said the company, China's top oil and gas producer, was operating normally. Liao is the most senior of two vice-chairpersonn at PetroChina, making him the company's number two official.
Hours earlier, China's corruption watchdog said Liao was under investigation for "serious disciplinary violations", usually shorthand for graft, stemming from his role as a general manager of China National Petroleum Corporation (CNPC), the parent company of PetroChina.