The table illustrates the daily oil production, measured in barrels per day, in four countries – Nigeria, Chad, Congo and Somalia – over a five-year period from 2000 to 2004.
Overall, Nigeria and Congo were the dominant oil producers throughout the period, although Congo’s output declined steadily. By contrast, Chad and Somalia produced relatively small amounts of oil, despite both countries experiencing noticeable growth by the end of the timeframe.
Nigeria consistently produced just over 200,000 barrels per day across the five years. Production rose slightly from 205,000 barrels in 2000 to 210,000 in 2001, before dipping to 190,000 in 2002. This was followed by a recovery to 210,000 barrels in 2003, reaching a peak of 213,000 in 2004.
Congo started as the largest producer in 2000, with 275,000 barrels per day, but its output declined each year thereafter. Production fell to 234,000 barrels in 2001, continued decreasing to 222,000 in 2002, and dropped further to 203,000 barrels per day by 2004.
In contrast, Chad produced no oil between 2000 and 2002. However, output began in 2003 at 8,000 barrels per day and rose sharply to 50,000 in 2004. Somalia followed a similar upward trend, increasing steadily from 5,000 barrels per day in 2000 to 50,000 by the end of the period.