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Tanzania has had more success in its search for gas than for oil. Songo Songo was Tanzania's first important hydrocarbon discovery in which gas from Lower Cretaceous sands tested up to 23 million cubic feet per day of gas and minor volumes of high API oil. Seven appraisal wells have been drilled and reserves are estimated to be about 1Tcf. Although the gas is methane-rich, ethane and higher hydrocarbons are ubiquitous. Gas ratios are characteristic of gases associated with oils and several wells in the field have tested 42 to 50 degree API condensate.