Former Minister of Petroleum Resources Diezani Alison-Madueke has vehemently denied multiple bribery charges against her as her corruption trial formally commenced on Tuesday at Southwark Crown Court in London. The high-profile case, which has drawn global scrutiny, centers on allegations that she accepted lavish inducements during her tenure as Nigeria’s oil minister between 2011 and 2015 under President Goodluck Jonathan.
At age 65, Alison-Madueke, who also served as the first female president of the Organisation of the Petroleum Exporting Countries (OPEC), sat in the dock alongside co-defendants including oil executive Olatimbo Ayinde and her brother, Doye Agama, as prosecutors laid out details of extensive financial and material benefits she is accused of receiving in return for influence over state-linked petroleum contracts.
British prosecutors told the jury that individuals seeking “lucrative oil and gas contracts” with Nigeria’s state-owned oil company provided Alison-Madueke with “significant financial and other advantages” in a quid-pro-quo arrangement, a charge she denies.
Prosecutor Alexandra Healy KC said Alison-Madueke “enjoyed a life of luxury in London,” with benefits allegedly funded by figures with interests in Nigerian oil and gas contracts.
Among the alleged benefits detailed in court were: Use of chauffeur-driven cars and private jet flights to Nigeria; £100,000 in cash handed directly to her; Refurbishment work and staff costs at multiple London properties; Payment of her son’s school fees; Luxury goods purchased from high-end stores such as Harrods and Louis Vuitton; and The use of a mansion outside London, allegedly bought and maintained by a businessman named in the indictment.
While the prosecution’s case portrays a figure whose lifestyle was sustained by extraneous benefits tied to her official influence, there is no direct evidence presented that Alison-Madueke awarded any oil contracts improperly, prosecutors acknowledged. However, they argue that her position as a public official obligated her to refuse any benefits from those doing business with government-owned entities.
Alison-Madueke denied all charges as the trial began, a steadfast position she has maintained since being formally charged in 2023 by the UK’s National Crime Agency (NCA).
Her co-accused, Ayinde and Agama, also deny the allegations against them. Ayinde faces a separate count of bribery related to the trial, while Agama is charged with conspiracy to commit bribery and is following proceedings via video link for medical reasons.
Alison-Madueke’s entanglement with corruption probes extends beyond the United Kingdom. Courts in Nigeria previously seized properties linked to her valued at millions of dollars, and Nigeria’s Economic and Financial Crimes Commission (EFCC) still has ongoing cases against her, even as she remains on bail in the UK since her initial arrest in October 2015.
When charges were announced in 2023, the UK’s National Crime Agency said it “suspected Diezani Alison-Madueke abused her power in Nigeria and accepted financial rewards for awarding multi-million-pound contracts.”
Trial Judge Justine Thornton indicated that the proceedings could run for several weeks, with a hoped-for conclusion by April 24.
