8 Factors That Affect Oil Prices

1. Supply and demand

Supply and demand is the primary driver of oil prices. Supply refers to the total volume of crude oil produced and available on the global market at any given time. Demand refers to the total volume consumed by industries, refineries, transport, and power generation. The balance between these two forces sets the baseline price for every barrel traded.

• Oil prices rise when demand exceeds supply.

• Oil prices fall when supply exceeds demand.

This relationship holds across every timeframe, from intraday spot price movements to multi-year structural trends. Traders monitor this balance through inventory data, production reports from OPEC+ and the US Energy Information Administration (EIA), and demand forecasts from the International Energy Agency (IEA), because shifts in any of these data points directly affect price direction.

Historical case: Global oil demand dropped by more than 30 million barrels per day in April 2020 after COVID-19 lockdowns grounded transport worldwide. Saudi Arabia simultaneously raised output to a record 12.3 million barrels per day.The resulting oversupply pushed WTI crude below $0 per barrel on 20 April 2020, the first negative price since futures trading began in 1983.

2. OPEC+ policy

OPEC+ (Organization of the Petroleum Exporting Countries Plus) is a coalition of 24 oil-producing nations, led by Saudi Arabia and Russia, that sets coordinated production targets to manage global oil supply. OPEC+ countries combined produced approximately 59% of global oil output (48 million barrels per day) in 2022, giving the group direct influence over market supply levels.

• Announced production cuts reduce the volume of oil available on the global market, which tightens supply and pushes prices higher.

• Announced production increases add supply, which loosens the market and pressures prices lower.

These price effects often begin before any physical barrels are added or removed, because futures traders reprice contracts as soon as a policy decision is confirmed.

Historical case: OPEC+ cut production by 2 million barrels per day in October 2022, the largest reduction since the start of the pandemic, equivalent to roughly 2% of global oil demand. Oil prices had fallen from over $120 per barrel in early June to roughly $80 per barrel by September on recession fears. Brent crude rose to over $93 per barrel on the announcement.

3. Geopolitical conflict

Geopolitical conflict refers to wars, sanctions, trade disputes, and political instability in or between oil-producing nations. Oil supply chains are concentrated in politically sensitive regions, including the Middle East, Russia, and West Africa, which makes the commodity uniquely exposed to geopolitical disruption.

Conflict in producing regions can restrict supply by damaging infrastructure, blocking export routes, or triggering sanctions that remove barrels from the global market. Even the threat of disruption moves prices, because traders reprice futures contracts to reflect the risk of future supply losses before any physical shortfall occurs. The greater the share of global production at risk, the larger the price reaction.

Historical case: US and Israeli strikes on Iran began on 28 February 2026, and shipping through the Strait of Hormuz, which carries roughly 20% of global oil supply, halted within days after Iranian drone strikes targeted tankers in the waterway. Crude oil prices had been trading in the mid-$60s before the strikes began. Brent crude and WTI both surged past $119 per barrel in overnight trading on 9 March 2026, their highest levels since 2022. Kuwait and Iraq were forced to cut production as storage capacity filled, with Iraq alone shutting in 1.5 million barrels per day.

4. Economic growth expectations

Oil demand correlates with global economic activity. Industrial output, freight transport, air travel, and consumer spending all consume petroleum products, so GDP growth forecasts serve as a proxy for future oil consumption.

• Strong growth forecasts increase expected energy consumption, which supports prices.

• Recession signals or downward GDP revisions reduce demand expectations, which pressures prices lower.

Traders do not wait for actual consumption data to change. Futures prices move as soon as leading indicators (purchasing managers' indexes, employment data, central bank policy signals) shift the consensus growth outlook.

Historical case: China's oil demand fell by 1.7% year-on-year in July 2024, a sharp reversal from the 9.6% average growth rate recorded in 2023. The weaker demand environment helped drive Brent crude from above $82 per barrel in early August to near three-year lows just below $70 per barrel by mid-September 2024. China accounted for 6 million barrels per day of global oil demand growth between 2013 and 2023, making its slowdown the single largest drag on the demand outlook.

5. Supply disruptions

Supply disruptions are unplanned events that remove oil from the market with little or no warning. These events include refinery outages, pipeline failures, natural disasters affecting production infrastructure, and shipping route blockages through chokepoints such as the Strait of Hormuz or the Suez Canal.

Disruptions cause sharp, short-term price spikes because oil markets cannot replace lost supply immediately. The severity of the price reaction depends on 3 factors:

1. the volume of production taken offline

2. the duration of the outage

3. the level of spare capacity and inventories available to absorb the shortfall

Disruptions that hit both upstream production and downstream refining capacity at the same time produce the largest price moves.

Historical case: Hurricane Katrina made landfall on 29 August 2005 and shut down the Gulf of Mexico, which at the time supplied 25% of US crude oil production and 20% of natural gas output. The storm destroyed 47 platforms and 4 drilling rigs, shutting 95% of Gulf oil production. WTI crude oil briefly spiked above $70 per barrel, a record at the time, before falling after the US government authorised releases from the Strategic Petroleum Reserve.

6. US dollar strength

Oil is priced globally in US dollars. A stronger dollar makes each barrel more expensive for buyers using other currencies, which can reduce international demand and weigh on prices. A weaker dollar makes oil cheaper in foreign currency terms, which can support demand and push prices higher.

This relationship exists because the majority of global oil trade is invoiced and settled in dollars.

• When the US Dollar Index (DXY) rises
  Importers in Europe, Asia, and emerging markets pay more in local currency for the same barrel, which dampens consumption at the margin.

• When the DXY falls
  The opposite effect supports buying activity.

Energy prices have historically shown one of the strongest inverse correlations with the dollar among all commodity classes.

Historical case: Between June 2021 and mid-2022, the Brent crude oil price rose by 59% in US dollar terms but by 86% in euro terms, because the dollar strengthened sharply over the same period. Japanese petroleum prices rose by 160% from early 2022 compared with 75% in the US, illustrating how dollar appreciation amplified the cost of oil for non-dollar economies.

7. Market sentiment and speculative positioning

Market sentiment refers to the collective outlook of traders and investors toward future oil prices. Speculative positioning refers to the net long or short contracts held by non-commercial traders (hedge funds, commodity index funds, and other financial participants) in crude oil futures and options markets.

• Heavy speculative buying increases demand for futures contracts, which pulls prices higher.

• Heavy speculative selling adds downward pressure.

These positioning shifts can amplify price moves beyond what physical supply and demand conditions justify, particularly during periods of high volatility when traders react to headlines, economic data releases, or shifts in risk appetite rather than changes in actual oil inventories.

Historical case: WTI crude oil climbed to $147 per barrel in July 2008, then collapsed to $30 per barrel by December 2008. Total investment in commodity index funds rose tenfold between 2003 and mid-2008, from an estimated $15 billion to around $200 billion, while global physical oil demand remained largely unchanged over the same period. One analysis concluded that absent speculative activity, oil prices in the first half of 2008 would have traded in the $80 to $90 per barrel range rather than above $140.

8. Government regulation and energy policy

Government regulation and energy policy refers to laws, trade rules, environmental mandates, and fiscal measures that alter how oil is produced, traded, or consumed. These include export restrictions, emissions standards, carbon taxes, refinery capacity rules, strategic reserve releases, and sanctions regimes.

Regulatory changes affect oil prices by shifting the structural balance of supply or demand.

• Export bans restrict the flow of oil to global markets, tightening supply for some buyers and depressing prices for domestic producers.

• Emissions mandates can reduce long-term petroleum demand by accelerating adoption of alternative fuels.

• Strategic reserve releases add supply to offset short-term shortages.

Unlike cyclical factors such as sentiment or economic growth, regulatory changes tend to create persistent, structural shifts in market dynamics.

Historical case: The US banned most crude oil exports in 1975 following the Arab oil embargo. Congress lifted the 40-year ban in December 2015 as domestic production surged from 7.4 million barrels per day in 2013 to 9 million barrels per day by end of 2015. While the ban was in place, pipeline bottlenecks and refinery mismatches pushed the WTI-Brent spread as wide as $24 per barrel between 2011 and 2015. After the repeal, US crude exports rose from under 0.5 million barrels per day in 2015 to nearly 3 million barrels per day by 2019, and the spread narrowed to a $3 to $8 range.

How do I take advantage of oil price movements?

Traders can take advantage of oil price movements through several instruments, including crude oil CFDs, futures contracts, and oil-linked ETFs. There are 4 steps to start:

1. Open a trading account

Choose a regulated broker that offers crude oil trading on both WTI and Brent benchmarks.

2. Fund your account

Deposit the minimum required capital. If trading leveraged products such as CFDs or futures, a smaller deposit controls a larger position. A 1:10 leverage ratio on a $1,000 deposit gives $10,000 of market exposure.

3. Analyse the market

Use the eight factors covered in this article to form a directional view. Monitor OPEC+ announcements, EIA inventory reports, USD strength, and geopolitical developments to identify potential catalysts for price movement.

4. Place your trade

Go long (buy) if you expect prices to rise. Go short (sell) if you expect prices to fall. Set a stop-loss to define your maximum risk per trade and a take-profit to lock in gains at your target price.