Across global oil markets, the spectre of supply constraints has caused a rally in 2018 and the outlook for the next three to six months indicates prices will remain high. In fact, major energy players including Mercuria and Total have even raised the possibility of $100 oil by the end of this year, or early 2019. While triple digits might be a stretch – Stephen Brennock, London-based oil analyst at brokerage PVM Oil Associates, calls$100-oil predictions “exaggerated” – most experts believe