Engen is a prominent South African oil company based in Cape Town, specializing in downstream refined petroleum products. With over 1,000 service stations across the country, Engen holds approximately 25% of South Africa's petroleum retail market share. It is a wholly owned subsidiary of Vitol Emerald Bidco, part of Vivo Energy.

Engen offers a diverse range of fuels, including Engen Primax, Engen Dynamic Diesel, and various aviation fuels like Engen Avgas 100 LL and Engen Jet-A1. The company also provides lubricants, chemicals, and car cleaning products under the Durance brand. Beyond fuel retailing, Engen engages in marketing petroleum products and offers convenience services at its stations. The company is committed to customer service, technological innovation, and community involvement, and it exports products to several African countries, including Botswana and Mauritius. Engen serves a wide customer base, from personal vehicle owners to commercial clients in various sectors.