Sumatec finds more oil at Kazakhstan field

    Sumatec Resources Bhd says fresh review of its oil and gas field in Rakushechnoye, Kazakhstan has yielded a 14.5% increase in proven oil reserves to 129 million barrels.     “The increase in reserves is the first significant achievement for Sumatec with this asset,’’ Sumatec CEO Christopher Layton Dalton said.     “An additional 10 million...