 In the
 last decade or so, petroleum (oil) has claimed the top position in 
Nigeria’s export list, constituting a very fundamental change in the 
structure of the country’s international trade.
In the
 last decade or so, petroleum (oil) has claimed the top position in 
Nigeria’s export list, constituting a very fundamental change in the 
structure of the country’s international trade. 
Oil prospecting began 
in Nigeria as far back as 1908 but production and export started in 1958
 in Shell’s field located at Oloibiri.  Other companies joined soon 
after independence and the number of oil producing and exporting 
companies now stands at about 11.
The 
share of oil in total export value rose from less than 1 per cent in 
1958 to a peak of 97 per cent in 1984 and has not been less than 90 per 
cent since then.  In the first half of 1990, it accounted for over 95 
per cent of total exports and its share of GDP has ranged between 25 and
 30 per cent in recent years. 
Nigeria produces about 2,000,000 million barrels per day and is the sixth largest oil producing country in the world. 
The 
petroleum industry is usually divided into three {3} major components, 
upstream, midstream and downstream. Midstream operations are usually 
included in the downstream category.
The 
downstream oil sector is a term commonly used to refer to the refining 
of crude oil and the selling and distribution of natural gas and 
products derived from crude oil. It cuts across manufacturing, 
marketing, sales, distribution, transportation and haulage.
There 
are significant investment opportunities in the downstream sector of the
 oil and gas industry in Nigeria. Statistics have it that there are over
 six thousand {6,000} independent petroleum products marketers and six 
{6} major marketers of distributing and marketing petroleum products 
across the country. 
 
 
 
 
 
 
 
 
