https://platformsafrica.com/2020/06/11/production-cost-scam-mass-oil-contracts-projects-cancellations-loom-in-nigeria/

It costs oil firms about $4 to produce a barrel of crude oil in Saudi Arabia but it costs these companies over $18 to produce same one barrel in
Group Managing Director, NNPC, Mallam Melle Kyari, who revealed how oil companies swindle the system of millions of dollars through production cost padding, vowed that recalcitrant firms may be shown way out of the country.

Nigeria, Africa’s biggest crude oil exporter, uncovered these sharp practices by oil firms and contractors who pad oil production cost with frivolous claims and charges, fleecing the country of millions of dollars translating billions of naira daily even before a barrel of the commodity is produced.

Here are the details

Production cost scam: Mass oil contracts, projects’ cancellations loom in Nigeria
https://platformsafrica.com/2020/06/11/production-cost-scam-mass-oil-contracts-projects-cancellations-loom-in-nigeria/