(EnergyAsia, June 16 2010, Wednesday) — Law firms Herbert Smith and Stibbe said they recently advised China National Petroleum Corporation (CNPC) on its acquisition of 35% interest in Syria Shell Petroleum Development (SSPD) previously 100% owned by Shell. SSPD has interests in three production licences including Deir-Ez-Zor, Fourth Annex and Ash Sham operated by the…