KazMunaiGas says Q1 Output up 19.8 Percent Year-on-Year

    Kazakh state oil and gas firm KazMunaiGas said on Wednesday it had increased oil production by 19.8 percent year-on-year in the first quarter of 2010 to 5.3 million tonnes.     KazMunaiGas holds a controlling stake in London-listed KazMunaiGas Exploration and Production, according to Reuters....