(EnergyAsia, August 8) — The 2.1% revaluation of China’s currency, the renminbi (RMB), will have “a relatively small impact” on China’s three state oil and gas majors, according to a Morningstar research report.             Last month, the currency was revalued to RMB 8.11 to the US dollar, from RMB8.277, previously.             Analysts with the Chicago,…