Finance experts contend that the real value of the revenue has diminished because of the prevailing exchange rate, which makes logistics and operational costs very prohibitive.
Oyeyemi, who was an ally of Governor Ademola Adeleke, was reportedly killed while attending a meeting convened as part of efforts to resolve the lingering dispute between rival factions over the control and management of motor parks in the state.
The 58-year-old Canadian singer performed before a sold-out crowd of about 30,000 fans at the Plenitude Arena in Nanterre, near Paris, on Saturday, September 12.