EFCC Arrests Former NNPCL CFO Umar Isa Over Alleged ₦11.17 Trillion Refinery Fraud.
The Economic and Financial Crimes Commission (EFCC) has arrested Umar Isa, a former Chief Financial Officer (CFO) of the Nigerian National Petroleum Company Limited (NNPCL), over an alleged ₦11.17 trillion fraud. The case involves the rehabilitation of Nigeria’s key refineries in Kaduna, Warri, and Port Harcourt, which have long suffered from mismanagement and operational failures.
EFCC sources confirmed that Isa was detained in Abuja on Monday following investigations into the handling of funds allocated for the refineries’ turnaround maintenance. The agency is probing allegations of abuse of office, corruption, diversion of public funds, and receiving kickbacks from contractors. As CFO, Isa was responsible for overseeing the release of funds for the rehabilitation, which has delivered minimal progress despite substantial financial commitments.
The EFCC’s investigation revealed that approximately ₦4.57 trillion was allocated for the refurbishment of the three refineries: ₦2.42 trillion for Port Harcourt, ₦1.15 trillion for Kaduna, and ₦1.02 trillion for Warri. However, the refineries remain largely non-functional, with Port Harcourt operating below 40% capacity and Warri shutting down shortly after a brief resumption of operations in late 2024 due to safety concerns. The Kaduna refinery, hampered by the lack of a functional crude oil pipeline, has also failed to meet its rehabilitation goals.
Alongside Isa, the EFCC has arrested Jimoh Olasunkanmi, a former Managing Director of the Warri Refinery, as part of a broader probe into the mismanagement of funds. Other senior officials under investigation include Tunde Bakare, the current Managing Director of Warri Refinery, Ahmed Dikko, a former Managing Director of Port Harcourt Refinery, and Ibrahim Onoja, another ex-Managing Director of the same facility. The EFCC is reportedly expanding its inquiry to include contractors and additional NNPCL executives linked to the failed projects.
The arrests have reignited public outrage over the state of Nigeria’s oil sector, which has been plagued by allegations of corruption and inefficiency for decades. Energy expert Kelvin Emmanuel, speaking to local media, described the refineries’ rehabilitation efforts as a “charade,” accusing the NNPCL of misleading the public about their operational status. “Nigerians deserve transparency and accountability. These funds could have built new, modern refineries,” he said.
The Senate Committee on Public Accounts, chaired by Senator Aliyu Wadada, has also raised concerns about financial irregularities in NNPCL’s accounts, further intensifying scrutiny on the organisation. Attempts to contact EFCC spokesperson Dele Oyewale for comment were unsuccessful as of press time.
This latest crackdown by the EFCC underscores the Nigerian government’s commitment to rooting out corruption in its critical oil and gas sector. As investigations continue, the public awaits further developments and hopes for justice in what could be one of the country’s largest oil-related fraud cases.

