Why the oil price changes
Crude oil is a global commodity. Its price moves when traders change their view of the balance between supply (how much oil is produced) and demand (how much is used). Most news that moves oil affects that balance. It either changes the barrels available now or changes what traders expect later.
The two main benchmarks are Brent, linked to North Sea crude and used for much of world trade, and WTI (West Texas Intermediate), the main US benchmark. They usually move together. The gap between them can widen or narrow on regional news, such as pipeline issues or US export flows.
Expectations matter as much as physical barrels. Prices often move before a supply cut takes effect, because futures markets price the future. When the news is confirmed, the price may barely react if it was already expected. This is the "buy the rumour, sell the fact" pattern. The page on economic surprises covers it in more detail.
- The price of a country's main export rises: oil, metals or farm goods.
- The country earns more foreign currency from its exports.
- Its trade balance and growth outlook improve.
- The exporter's currency tends to rise with the commodity; importing countries face higher costs.
Ready to try it on a real or demo account?
Partner link · trading carries a high risk of loss
Supply: OPEC+ and US shale
OPEC+ decisions
OPEC+ is a group of oil-producing countries made up of OPEC members and allied producers. It meets to set production targets. When it agrees to cut output, less oil reaches the market, which tends to support prices. When it raises output or members produce above their quotas, prices tend to come under pressure.
Points experienced traders watch:
- The size of the decision compared with expectations. A cut that matches market talk may have little effect. A surprise in either direction can move the price sharply.
- Compliance. Announced targets and actual production are not always the same. Tanker-tracking estimates and monthly production surveys show whether members are following the targets.
- Voluntary cuts and their extension or unwinding. Statements about how long cuts will last often matter more than the headline number.
- Language around the meeting. Reports before the meeting and comments from delegates can move the market days ahead.
Meeting dates are published by OPEC. Check the official schedule rather than relying on third-party lists. Our OPEC+ meetings page explains how to follow them.
US shale production
US shale producers drill horizontal wells and use hydraulic fracturing ("fracking"). They can raise output faster than conventional producers when prices are high, so shale acts as a partial brake on price rises. When prices fall, drilling usually slows, but with a delay of months.
Useful indicators include weekly US output estimates, rig counts and producer statements in quarterly earnings. Rising output while OPEC+ is cutting can cancel part of the cut's effect.
Demand: China, the economy and seasons
China and global growth
China is one of the largest crude importers, so its economic data moves oil. Weaker industrial activity, soft factory surveys or lower import figures tend to weigh on prices. Signs of stronger activity or new stimulus tend to support them. The same applies to the US, Europe and India. Recession fears reduce expected fuel use. See PMI surveys and recession indicators for how this data works.
Seasonal patterns
Demand has seasonal habits:
- Northern summer driving season: higher petrol demand in the US and Europe.
- Winter: higher heating oil demand in colder regions.
- Refinery maintenance: refineries shut units for maintenance in spring and autumn, which reduces crude buying for a period.
These are tendencies, not rules. A weak economy can outweigh a seasonal effect.
Inventories: the weekly test
Inventories (stocks) show the result of supply and demand. If stocks build more than expected, supply is running ahead of demand. That is usually negative for price. A larger-than-expected draw usually supports price.
The best-known release is the weekly report from the US Energy Information Administration (EIA). It covers crude stocks, petrol and distillate stocks, refinery utilisation and the stocks at Cushing, the delivery hub for WTI. The market reacts to the difference between the actual figure and the forecast, not to the figure alone. An industry estimate published the evening before often sets expectations.
Check the EIA release schedule on its official site. Holiday weeks can shift the timing. The EIA oil inventories guide explains each line of the report. Use data figures only from the official release, not from reposted screenshots.
Geopolitics and supply risk
Conflict, sanctions and attacks on infrastructure can threaten supply from major producing regions or shipping routes. Markets often add a risk premium: the price rises on the possibility of lost barrels, even before any supply is lost. If the threat fades, that premium can disappear quickly. This often produces sharp moves in both directions within short periods.
Sanctions on exporters, disruptions to tanker routes and political instability in producing countries all fall into this group. Read more on geopolitical risk.
Other drivers
- The US dollar. Oil is priced in dollars. A stronger dollar makes oil more expensive in other currencies, which can weigh on demand. The link is loose, so check the US Dollar Index.
- Risk sentiment. In risk-off periods, oil often falls with stock markets on growth worries.
- Positioning. The weekly COT report shows how speculative traders are positioned. Crowded positions can unwind fast.
- Interest rates. Higher rates can slow growth and fuel demand.
For Pakistan, oil prices feed into the import bill, inflation and the rupee. See oil and inflation.
How markets typically react
| Event | Usual first reaction | What can change it |
|---|---|---|
| OPEC+ cut larger than expected | Price rises | Doubts about compliance |
| OPEC+ output increase | Price falls | Increase already priced in |
| EIA crude draw larger than forecast | Price rises | Product builds, weak demand data |
| EIA crude build larger than forecast | Price falls | Large Cushing draw |
| Weak China data | Price falls | Stimulus announcements |
| Supply threat in a producing region | Risk premium added | Threat fades, no barrels lost |
Price swings around these events can be fast, and spreads may widen. Leveraged CFD trading on oil can lose money quickly, including more than you planned if you do not manage position size. Read risk management before trading energies, and practise reading the economic calendar.
A note for readers in Pakistan
The SECP is the supervisor for securities and futures. Its position is that Securities and Exchange Commission of Pakistan (SECP), with trading in listed securities and commodities only via SECP-licensed securities and futures brokers. Also, per the SBP, remitting foreign exchange to overseas forex/margin/CFD platforms is not allowed through any payment channel (FERA s.5(1)). Read law and regulators before using any trading platform.
Frequent questions
What is the main factor behind crude oil price changes?
There is no single factor. The price reflects the expected balance of supply and demand. OPEC+ decisions, economic data, inventories and geopolitical events all shift that balance.
Why does oil sometimes fall after an OPEC+ cut?
The cut may have been expected or smaller than rumoured. Traders may also doubt that members will follow it.
Which inventory report matters most?
For many traders it is the weekly EIA report on US stocks. The reaction depends on the gap between the actual figure and forecasts.
Do Brent and WTI always move together?
Usually, but not always. Regional supply, pipelines and US export flows can change the gap between them.
Can I predict oil prices from these factors?
No. These factors explain why prices move, but they do not tell you where prices will go. Markets often react in unexpected ways.