Rilwanu Lukman, Nigerian engineer and politician (b. 1938)

Rilwanu Lukman (26 August 1938 – 21 July 2014) was a Nigerian engineer who held several ministerial positions in the Nigerian Federal government before becoming Secretary General of OPEC (Organization of the Petroleum Exporting Countries) from 1 January 1995 to 31 December 2000. He died on 21 July 2014. On 18 December 2008, Lukman was appointed Minister of Petroleum Resources by Nigerian president Umaru Yar'Adua, holding office until March 2010.