Featured Gas Oil World NewsBP to invest $1bn in South Africa, including refinery upgradeEditorNovember 23, 2018November 23, 2018 by EditorNovember 23, 2018November 23, 20180635 By Giwa SHILE BP Southern Africa (BPSA) will invest 1billion dollars in South Africa in the next five years, its chief executive said on Thursday.