 This paper presents a comprehensive review of enhanced oil recovery, EOR, technologies and their potential to increase final recovery factors and various types of reservoirs with a focus on sandstone and carbonate formations and turbiditic reservoirs both offshore and onshore. The paper discusses the status and opportunities for EOR methods including CO2 injection, high pressure air injection, HPAI and chemical flooding as well as their risk reward tradeoffs and recent trends in project economics. This article was authored by Vladimir Alvarado and Eduardo Menrique.