Sub-Saharan Africa has seen upstream investment fall by 56% since 2014. Governments have been slow to react and now face stiff global competition for investment dollars. Many of Sub-Saharan Africa's biggest operators have larger, more valuable businesses in the US, which are also benefitting from a 15% cut in income tax. So, might these companies exit the continent to focus on bigger returns stateside? We analyse the Majors and Large Caps with businesses in both regions to see where their value lies, where they are investing and what the future might hold for Sub-Saharan Africa.