(EnergyAsia, February 21) — US major Exxon Mobil Corp said that additions to its worldwide proved oil and gas reserves totalled 1.95 billion oil-equivalent barrels in 2006, excluding the effects of using single-day, year-end pricing. Production totalled 1.6 billion oil-equivalent barrels in 2006, with 976 million barrels of liquids and 3.7 trillion cubic feet of…