Chief Gilbert Temisan Grant, born on July 31, 1946, graduated with a B.Sc. (Honours) degree in. Mechanical Engineering from the University of Lagos in 1970 and subsequently with a post graduate Diploma in Petroleum Technology from the University of Ibadan in 1972. 

Chief G.T. Grant started his career as a Petroleum Engineer /Petroleum Reservoir Engineer with the Gulf Oil Company Nigeria Limited in 1970-1974. Subsequently, starting as a foundation staff member of the NNPC/NNOC in 1974, he served diligently with responsibilities in oil and gas upstream and downstream as well as the LNG. From 1984-1988, he was the Managing Director/CEO of UNIPETROL Nigeria Limited where he transformed the company from near bankruptcy to profitability. The impact of his positive input to the natural gas projects culminated in his appointment as the Managing Director/CEO of the Nigerian LNG. 

Chief Grant retired as the Group Executive Director (GED) of the NNPC in August 1995 having served meritoriously at NPDC, NEC, 1DSL and NLNG.  

Currently, he chairs STOCAM Nigeria Limited — a Consultancy/Advisory Services Outfit in upstream and gas sector of the economy; and has served on the Boards of Lonestar Drilling Company Nigeria Limited, Negs Nigeria Limited, OK LNG Nigeria Limited, Fode Engineering Nigeria Limited as well as Royal Exchange and General Insurance Company of Nigeria. 

He is a fellow and Past President of the Society for Petroleum Engineers of the American Institute (SPE- AIME) as well as the Institute of Directors (IOD).