Cameroon 2 800 5 000 7 000 Angola 7 428 7 152 6 222 Tunisia 5 628 5 412 5 284 Congo 2 640 3 096 3 399 Zaire 1 020 996 1 100 Ivory Ccast 50 500 1 000 Ghana 175 100 Morocco 48 48 48 Non-members of OPEC 49 237 53 792 55 109 Total 293 893 225 848 207 753 ------------------------------------------------------------Sources: Monthly Bulletin of Statistics, vol.XXXVI, No.11 (November 1982); International Financial Statistics, vol.XXXV, No. 12 (December 1982); Marches tropicau:J~, No. 1933 (26 November 1982). 4. Natural eas 132. Procuction of natural gas increaseci consicerably in 1981, from an estimatec 8.1 million tonnes of oil eauivalent in 1980 to 19.4 million tonnes. But these firures refer to commercializee production only, more than 60 per cent of which is surplied by Aleeria. Total production is much hirher, anc was estimatec in 1980 at 21.4 million tonnes of oil equivalent. The ciscrepancy between eross anc commercialized proruction 6erives from the fact that most natural eas is flarec on procuction sites. Taking into account the current cost of crude oil, the loss was around $4 billion for t~e year 1980. 72 E/ECA /CM. 9/5 133. Alperia is the only African gas procucer vlhich has made notable gains in the e::xploitation of its ras resources. In 1981, it concluded important arreements with Beleium, France anc Italy amonf others for the lonr-terrn supply of eas, with the price of gas based on that of oil. Belrium anc France afreec to pay some $5 per million BTU, and to link the faS price to the price of imported cruce oil. Italy is tc pay $4.4 per million BTU, en the basis of transport differentials. With the sirninf of these contracts it is clear that natural fas is roinf to play a growing 
**Analysis**
The text appears to be discussing the production and trade of natural gas, specifically in African countries, and the economic implications of this industry. It mentions the production levels, prices, and agreements between countries, indicating an economic focus.

**Category**
Economic development, Natural resources and environment