7.1 Repression of protest and government corruption.5.2 Independent and indigenous oil and gas companies operating in Nigeria.4.6 Environment of crisis (1993–present).4.5 Return to military rule and electoral annulment (1983–1993).4.2 Implications and causes of civil war (1966–1970).The need for holistic reforms in the Petroleum Industry, ease of doing business, and encouragement of local content in the industry birthed the Petroleum Industry Bill by the Goodluck Jonathan administration on July 18, 2008.

In 2010, Nigeria exported over one million barrels per day to the United States of America representing 9% of the U.S total crude oil and petroleum products imports and over 40% of Nigeria exports. Nigeria as one of the largest oil and gas producer in Africa, being a major exporter of Crude oil and petroleum products to the United States of America.

Statistics as of February 2021 shows that the Nigeria's oil sector contributes to about 9% of the entire country's GDP. Nigeria's economy and budget has been largely supported from income and revenues generated from the petroleum industry since 1960. Both types are paraffinic and low in sulfur. Crude oil from the Niger delta basin comes in two types: light, and comparatively heavy – the lighter around 36 gravity and the heavier, 20–25 gravity. Nigeria is one of the largest oil and gas producers in Africa.

Nigeria oil blocks map