Niger Delta

===Oil revenue derivation===
Oil revenue allocation has been the subject of much contention well before Nigeria gained its independence. Allocations have varied from as much as 50%, owing to the [[Nigerian First Republic|First Republic's]] high degree of regional autonomy, and as low as 10% during the military dictatorships.

{| class="wikitable"
|+Oil revenue sharing formula
! Year !! Federal !! State* !! Local !! Special Projects !! Derivation Formula**
|-
| 1958 || 40% || 60% || 0% || 0% || 50%
|-
| 1968 || 80% || 20% || 0% || 0% || 10%
|-
| 1977 || 75% || 22% || 3% || 0% || 10%
|-
| 1982 || 55% || 32.5% || 10% || 2.5% || 10%
|-
| 1989 || 50% || 24% || 15% || 11% || 10%
|-
| 1995 || 48.5% || 24% || 20% || 7.5% || 13%
|-
| 2001 || 48.5% || 24% || 20% || 7.5% || 13%
|}

''* State allocations are based on 5 criteria: equality (equal shares per state), population, social development, land mass, and revenue generation. ''

''**The derivation formula refers to the percentage of the revenue oil-producing states retain from taxes on oil and other natural resources produced in the state.'' [http://info.worldbank.org/etools/docs/library/5783/State_and_Governance_Nigeria.htm World Bank Report]