Last Updated on Wednesday, 17 May 2017, 19:28 by Denis Chabrol The cost of building a brand new 100,000 barrel per day oil refinery in Guyana can cost up to US$5 billion with a negative rate of return on investment at between US$2 billion and US$3 billion, a consultant said Wednesday. Director of Advisory Services … Continue reading Building a US$5 billion oil refinery in Guyana unprofitable — expert