He was appointed by ex-President Olusegun Obasanjo, who launched a probe into the Petroleum trust Fund chaired by President Muhmmadu Buhari.
One of the highlights of Mustapha's professional and public service was his appointment as a member of Interim Management Committee (IMC) of the defunct Petroleum (Special) Trust Fund (PTF), serving meritoriously from 2000 to 2007.
In a report by TheCable, he was appointed by ex-President Olusegun Obasanjo, who launched a probe into the Petroleum Trust Fund chaired by President Muhmmadu Buhari.
Mustapha joined Haroun Adamu, who was the chairman of the committee, and Abdu Abdurrahim, Achana Gaius Yaro, Edward Eguavoen, Andrew Adegboro and Baba Goni Machina in the committee.
At the PTF, Mustapha was responsible for production of an up-to-date comprehensive project and programme report, including location, coverage and whether performed, performing or abandoned projects and the production of final report of Assets and Liabilities, examination of the Administrative structure and cost effectiveness of PTF Projects and Services among other duties.
PTF was established in 1994 after an increase in the fuel prices. The body was allocated N5 on every litre of fuel sold to build or rebuild infrastructure across the country, especially roads, schools, water and medical facilities.
The report of the probe which has left some unanswered questions was neither made public by ex-President Obasanjo nor President Buhari, who resigned as the chairman.