Engen is an Africa-based energy company focusing on the downstream refined petroleum products market and related businesses. The company’s core functions are the refining of crude oil, the marketing of our primary refined petroleum products and the provision of convenience services via our extensive retail network. Engen Values At Engen our values are consciously held and consistently applied. They are the standards of excellence we strive to achieve as a successful business and a responsible corporate citizen. We also believe they are part of our difference and competitive advantage in the marketplace.