PetroChina stake sale restrictions lifting ... again

 PetroChinashareholders should prepare for share price jitters. From Friday, the Hong Kong companies that acquired strategic stakes in PetroChina during its initial public offering (IPO) in April will be free to sell all of the 2.13 billion shares they hold in China's biggest oil company. The strategic investors in question are the listed arms of Hong Kong's top tycoons and are more typically involved in property, telecoms and infrastructure.