The commission said the probe centers on alleged fund misappropriation and abuse of office.
In a letter dated April 28, 2025, the EFCC requested the NNPCL to provide certified copies of the emoluments and allowances of the affected staff, both past and present.
The letter, titled “Investigation Activities Request for Information,” with reference number CR:3000/EFCC/ABJ/HQ/SDC.2/NNPC/VOL.1/698, read in part, “The Commission is investigating a case of Abuse of Office and Misappropriation of Funds in which the under-listed officials of your organisation featured.
“In view of the above, you are kindly requested to furnish certified true copies of their emoluments and allowances, including that of those who have retired and no longer work with your organisation.
The affected persons listed by the EFCC include a former Group Chief Executive Officer, Mele Kolo Kyari; Ibrahim Onoja; Mustapha Magaji Sugungun; Abubakar Lawal Yar’Adua; Isiaka Abdulrazak; Umar Ajiya; Dikko Ahmed; and Ademoye Adeniyi Jelili.
Others are Kayode Olusegun Adetokunbo, Efiok Michael Akpan, Jimoh Olasunkanmi, Bello Kankaya, and Desmond Inyama.
Meanwhile the anti-graft agency said the investigation is linked to the funds allocated for rehabilitating the Port Harcourt Refining Company Limited, Warri Refining and Petrochemical Company, and Kaduna Refining and Petrochemical Company.
EFCC’s spokesperson, Dele Oyewale, confirmed to newsmen that a probe is ongoing, but however, did not disclose further details.
“There are ongoing investigations into the funds released for the rehabilitation of the Kaduna, Warri and Port Harcourt refineries,” Oyewale said in a terse statement.
