According to Anglo Africa's website they have an aggregate of 44 meters of hydrocarbon column. The use of the word aggregate implies several hydrocarbon columns added together to yield 44 meters.
There was no data provided to indicate how the 44 meters is arranged, there could be 4 10 meters or so columns, or one 20 meter column and then the remainder spread between other columns.
In any case 44 meters aggregate does not suggest a world-class oil field, at least not with the data provided to-date.