Introduction — The oil industry extends beyond extracting crude. It encompasses hydrocarbon prospecting, production, transport, processing and marketing. Each link involves different companies, infrastructure, contracts and skills. For African producing states, the challenge is to turn an exported resource into reliable supplies, public revenues and lasting industrial capabilities.
Key facts
- Upstream: exploration, field development and crude oil production.
- Transport and logistics: oil pipelines, vessels, terminals, storage and marketing.
- Downstream: refining, petrochemicals, distribution and sales of finished products.
- Recent trend: global oil demand increased by 0.7% in 2025, while supply grew faster.
What is the oil industry?
The oil industry refers to economic activities involving the search for, extraction, transport, processing and sale of oil and its derivatives. Crude oil is a mixture of hydrocarbons extracted from underground. It must be transported and processed before becoming gasoline, diesel, kerosene, fuel oil, bitumen or a feedstock for petrochemicals.
A common distinction separates upstream operations, transport and intermediate activities, and downstream operations. The boundaries between these segments are not always strict: some groups operate across several links, while others specialise in a service, infrastructure or product. National and international companies, refiners, traders, service companies and distributors therefore form a chain integrated into the global economy.
Upstream: finding and producing hydrocarbons
Exploration begins with subsurface studies, analysis of geological data and acquisition of seismic data. The results guide the selection of areas for drilling an exploration well. A well confirms the presence of hydrocarbons and provides information about the reservoir's quantity, quality and production capacity. A discovery does not automatically become a commercial project: costs, infrastructure, expected prices, contracts and permits must also be considered.
If the deposit is considered viable, companies move into development. They design wells, surface facilities, processing systems and arrangements for transporting the oil. Production can take place onshore or offshore, in conventional or more complex environments. Investment is substantial and timelines may extend over several years, making decisions sensitive to prices and regulatory stability.
Operations also include managing produced water, associated gas, emissions, waste, staff safety and site closure. Gas flaring or venting, methane leaks and spills can have climate, health and environmental impacts. Prevention, independent monitoring and data transparency are integral to the sector's performance.
Transport, storage and trading
After production, crude oil is transported to markets and processing facilities. Oil pipelines move large volumes on land; tankers connect producing ports to refineries. Terminals, loading buoys, tanks and pumping facilities handle transfers and storage.
Trading organises the purchase, sale and physical delivery of cargoes. Crude grades differ in density and sulphur content, and not all refineries can process every type of oil equally efficiently. Benchmark prices, quality differentials, transport costs, insurance and payment terms influence the value actually obtained by a producer.
Storage can serve several purposes: maintaining a regular supply, absorbing temporary variations or building security stocks. The availability of ports, pipelines and storage capacity therefore determines a country's ability to sell its oil and import the products it needs.
Downstream: refining, processing and distribution
A refinery separates crude oil into different fractions through distillation, then transforms certain molecules through processes such as cracking, reforming and treatment. Its products include gasoline, diesel, kerosene, liquefied petroleum gas, fuel oil and bitumen. The facility's configuration determines which crudes it can process and which products it can manufacture.
Petrochemicals use certain fractions, including naphtha and gases, to produce feedstocks for plastics, fibres, solvents and fertilisers. Petroleum products are then stored, transported to depots and delivered to wholesalers, filling stations, airlines, industrial users and households.
Owning a refinery does not guarantee fuel self-sufficiency. The facility must operate regularly, have access to suitable crude, energy and water, meet quality standards, finance inventories and sell its products at a sustainable price. Maintenance shutdowns, debt, market constraints or a shortage of parts may cause a country to continue importing refined products despite having local capacity.
Issues for African economies
The oil industry brings export earnings and public revenues to several African countries. It can support the development of ports, pipelines, logistics bases and technical skills. However, value creation remains uneven when crude is exported without local processing and finished products are subsequently imported at a high cost.
Developing refining, storage and petrochemicals can strengthen security of supply and open up industrial opportunities. However, it requires substantial investment, predictable governance, credible contracts and sufficiently large regional markets. Cooperation between neighbouring countries can enable them to share infrastructure, secure volumes and distribute costs.
The energy transition is also changing the long-term outlook. In 2025, global oil demand increased by 0.7%, a rate below the average recorded before the pandemic. Transport electrification, efficiency gains, biofuels and changes in petrochemicals are reshaping demand. Oil projects must therefore be assessed against their costs, lifetimes, emissions and ability to generate useful revenues before markets change further.
Frequently asked questions
What is the difference between crude oil and petroleum products?
Crude oil is the raw material extracted from underground. Petroleum products are fractions separated or transformed by a refinery, such as gasoline, diesel, kerosene and bitumen.
What are upstream and downstream oil operations?
Upstream covers exploration and production. Downstream mainly refers to refining, petrochemicals, distribution and sales. Transport and storage connect these segments.
Is a producing country necessarily self-sufficient in fuels?
No. It can export crude and import gasoline or diesel if it lacks suitable refineries, if they are shut down or if their output does not meet local demand and standards.