Educational content. This article explains why natural gas prices move more than crude oil prices and what that difference means for position sizing. It does not constitute investment advice, a recommendation, or an offer to buy or sell any financial instrument. CFD trading carries significant risk of loss and may not be suitable for all investors. Past patterns do not guarantee future results.
Natural gas is more volatile than oil because gas is hard to store and hard to move. When demand jumps or supply drops, an oil market absorbs the shock in inventories and reroutes tankers, while a gas market has no such cushion and the adjustment happens entirely in the price.
Everything else about gas volatility follows from that one physical fact: the weather sensitivity, the seasonality, the fact that Europe, Asia, and North America can hold three completely different prices for the same molecule on the same day. The rare episodes in which oil has been the wilder market are the episodes in which oil temporarily lost its storage advantage.
For the wider commodity market and how CFDs on it work, see how to trade commodities. For crude specifically, see the Brent oil trading strategy guide. This article is about the difference between the two energy markets.
How Much More Volatile Is Natural Gas Than Oil?
Natural gas volatility is measured in the same way as any other market, and the readings sit far above what crude oil produces in comparable conditions.
The standard measure is annualised historical volatility: the standard deviation of the previous 30 days of daily price changes, multiplied by the square root of 252 trading days, expressed as a percentage. The US Energy Information Administration publishes it for the Henry Hub front-month contract, and the record of the last few years is instructive.
| Period | Henry Hub 30-day historical volatility |
|---|---|
| 2017 to 2021 average | 48% |
| February 2022 | 179% |
| Fourth quarter 2024 | 81% |
| Mid-2025 | 69% |
Read the first row first. A 48 percent annualised volatility is the calm period for natural gas, and it already sits above the range crude oil typically occupies in ordinary conditions. The February 2022 reading of 179 percent is close to four times the market's own five-year average, and it happened in a market that was not experiencing a war on its own territory or a physical shortage of the fuel in the United States.
The rest of this article is about why those numbers look the way they do.
The Mechanism: Four Reasons Gas Moves More
Gas moves more than oil for four connected reasons: storage is scarce, demand is weather-driven, the market is regional rather than global, and supply cannot respond inside the timeframe over which demand changes.
The four are not independent. Each one is a version of the same problem, which is that a gas market cannot shift quantity in the short run, so it has to shift price instead.
Reason 1: Storage Is Scarce, Expensive, and Seasonal
Storing natural gas requires specialised underground facilities, and their capacity is fixed, which means a gas market has a hard limit on how much of a shock it can absorb without moving the price.
Crude oil is a liquid at ambient temperature and pressure. It can sit in a tank, a salt cavern, a rail car, or a tanker anchored offshore, and building more storage is a matter of steel and time. Natural gas is a gas, and a gas takes up a great deal of room: cooling it into liquefied form shrinks it by a factor of roughly six hundred, which is the measure of how diffuse it is at ambient conditions. Storing it in bulk therefore means compressing it into depleted reservoirs, aquifers, or salt caverns, and those exist only where the geology allows.
The consequence is a market that runs on a seasonal cycle rather than a stable buffer. Inventories are injected through the warmer months and withdrawn through the colder ones, and the size of the cushion at the start of winter sets how much weather the market can take before price has to do the work. Enter a cold season with storage below the five-year average and the entire winter trades at a higher volatility, because every forecast revision matters more.
Reason 2: Demand Is Weather-Driven and Cannot Be Postponed
Heating and cooling demand appears and disappears with the temperature, and neither the household nor the power generator can defer it, which makes short-run gas demand almost perfectly inelastic.
A driver facing a higher petrol price can combine errands, take the train, or delay a journey. A household facing a cold snap turns the heating on regardless of the gas price, because the alternative is an unheated house. Power generators face the same constraint in reverse during a heatwave, when air conditioning load must be met from whatever is available.
Weather forecasts therefore function as a demand curve that gets rewritten every few hours. This is a genuine structural difference from oil, whose demand is tied to transport and industrial activity and moves over quarters rather than over the run of a forecast model. It is also why gas volatility is seasonal in a way oil volatility is not.
Reason 3: Gas Is a Regional Market, Oil Is a Global One
Crude oil is fungible cargo that can be shipped to whichever region pays the most, which equalises prices worldwide, while natural gas has to travel by pipeline or as liquefied cargo, which keeps regional markets separate.
Liquefying gas means cooling it to about minus 162 degrees Celsius, loading it onto a purpose-built vessel, and regasifying it at a terminal that has to exist at the other end. That chain costs money, takes years to build, and is capacity-constrained, so arbitrage between Henry Hub in the United States, TTF in Europe, and JKM in Asia is slow and incomplete. Three prices for the same commodity can and do diverge by multiples.
Oil has regional benchmarks too, and Brent and WTI trade at a spread, but that spread reflects quality and logistics within a single connected global market. It is measured in a few dollars a barrel, not in multiples. What that means for volatility is simple: a regional gas shock stays regional, and there is no global inventory pool standing ready to arrive and cap the price.
Reason 4: Supply Cannot Respond Within a Season
Gas production responds to price over years, not over weeks, so a demand shock cannot be met by producing more, and in the United States a large share of gas supply is not even a response to the gas price.
Much US gas is associated gas, produced as a by-product of drilling for oil in basins such as the Permian. That share of supply is set by the economics of crude, not of gas, so a gas price spike does not necessarily bring it forth and a gas price collapse does not necessarily shut it in. What can happen fast is the opposite: production falling. In February 2021 daily dry gas production in Texas fell by almost half in a single day when water in the raw gas stream froze at the wellhead, a physical failure that no price could reverse in the time available.
The Scheduled Event: The Weekly Storage Report
Natural gas has a weekly scheduled data release that reprices the whole curve, and its timing is worth knowing because it is the single most reliable source of intraday volatility in the market.
The US Energy Information Administration publishes the Weekly Natural Gas Storage Report on Thursdays at 10:30 a.m. Eastern Time, giving the net change in working gas in underground storage for the week ending the previous Friday. Through the injection season, roughly April to October, the number is normally a build; through the withdrawal season, roughly November to March, it is normally a draw. What moves the price is the surprise against expectations and against the five-year average, not the direction.
Crude has an equivalent in the Weekly Petroleum Status Report, published on Wednesdays at 10:30 a.m. Eastern Time. The difference is what each number means. An unexpected crude build is information about the balance of a market with a deep global inventory cushion. An unexpected gas draw in a cold January is information about how close a market with a fixed cushion is to the bottom of it.
Spreads and volatility widen around both releases. Live values for every energy symbol are visible in the trading calculator.
Case Study: February 2021, From 3.76 to 23.86 in a Week
Winter Storm Uri is the clearest single demonstration of every mechanism above operating at once.
On 10 February 2021 the Henry Hub spot price was USD 3.76 per MMBtu. On 17 February it was USD 23.86, the highest daily price in real terms since February 2003. Nothing structural had changed about American gas reserves in that week.
What happened was that an extreme cold event pushed heating demand up across a large part of the country at exactly the moment that wellhead freeze-offs cut Texan production roughly in half. Demand could not be postponed, supply could not respond, storage withdrawal capacity is physically limited regardless of how much gas is in the ground, and no cargo could arrive from another region in time. Every adjustment mechanism was unavailable, so the entire adjustment happened in price, and a six-fold move took a week.
Crude oil, over the same event, did very little. The same storm disrupted refining and some production, but the global oil market had inventories, floating storage, and the ability to redirect cargoes.
The Exception That Proves the Rule: April 2020
The one modern episode in which oil was dramatically more volatile than gas was caused by oil temporarily losing exactly the advantage that normally makes it the calmer market.
On 20 April 2020 the expiring WTI futures contract settled at minus USD 37.63 per barrel. The reason was storage. Demand had collapsed under pandemic restrictions, production had not yet fallen to match, and the tank farm at Cushing, Oklahoma, the physical delivery point for the contract, was heading towards full. A holder of an expiring long contract faced physical delivery of barrels with nowhere to put them, and paid to be released from that obligation.
The lesson is the thesis of this article stated backwards. Oil is normally the calmer market because inventories absorb imbalances. Remove that cushion, by filling the tanks, and oil prices behave the way gas prices behave routinely: they go wherever the physical constraint says they must go. Natural gas lives permanently closer to that constraint.
When Gas and Oil Move Together
Gas and oil are not independent markets, and three linkages pull them in the same direction often enough to matter.
The first is fuel switching. Industrial users and some power generators can burn either gas or fuel oil, and when the price ratio moves far enough, they switch, which transmits demand from one market into the other and caps the divergence.
The second is contract indexation. A meaningful share of long-term LNG supply, particularly into Asia, is priced against crude oil benchmarks rather than against gas hubs, which is a legacy of the era before liquid gas trading and which mechanically ties some gas revenue to the oil price.
The third is the supply link described above. Associated gas means a sustained fall in oil drilling reduces gas supply with a lag, regardless of what gas demand is doing.
Both markets also share the macro drivers common to all dollar-denominated commodities, including the exchange rate itself. The dollar channel is treated in detail in why gold rises when the DXY falls, and the logic applies to energy as well as to metals.
What the Difference Means for CFD Traders
For a CFD trader the volatility gap is not an abstraction: it changes what a given lot size means, and the specifications make the difference visible.
One Lot Is Not One Unit of Risk
NGas, USOil, and UKOIL all have a contract size of 100, so a one dollar move in the price is worth USD 100 per lot on all three, but one dollar means something completely different in each market.
At the snapshot levels of 3 September 2026, one dollar was roughly 33 percent of the natural gas price and roughly 1.1 percent of the crude price. A trader who sizes a gas position by lot count, using the habits built on crude, has taken on a position whose percentage swings are an order of magnitude larger for the same notional.
The notional itself differs by a factor of about thirty.
| Symbol | Price, snapshot | Notional per lot | Minimum trade size | Notional of the smallest ticket |
|---|---|---|---|---|
| NGas | 3.058 | USD 306 | 1.0 lot, step 1.0 | USD 306 |
| USOil | 88.274 | USD 8,827 | 0.1 lot, step 0.1 | USD 883 |
| UKOIL | 93.209 | USD 9,321 | 0.1 lot, step 0.1 | USD 932 |
Source: Vanto calculator data, snapshot 2026-09-03. Contract size 100 and quote precision of 3 decimals on all three; profit currency USD; triple-swap day Friday; maximum leverage on the energies class up to 1:100.
There is a counterintuitive result in the last column. Natural gas has the coarser lot step, ten times coarser than crude, yet the smallest gas ticket carries about a third of the notional of the smallest crude ticket, because the price is so much lower. Coarse granularity and small exposure are not the same thing, and what is contract size in trading sets out the arithmetic across every asset class.
The Financing Sign Says Something About the Curve
The published overnight swap on the energy CFDs carries opposite signs for gas and crude, and the difference reflects the shape of the forward curve in each market rather than a view about direction.
| Symbol | Published swap, long | Published swap, short |
|---|---|---|
| NGas | -17.82 | +2.85 |
| USOil | +9.00 | -28.36 |
| UKOIL | +25.56 | -200.00 |
Source: Vanto calculator data, snapshot 2026-09-03. Published swap values change with market conditions.
A long gas position is charged and a short is credited, while on both crude contracts the long side is credited and the short side is charged. That pattern is consistent with a crude market in backwardation, where nearer contracts trade above later ones, and a gas market carrying the seasonal contango that pays for storage between the injection and withdrawal seasons.
Two figures in the table deserve attention. The gas long charge of -17.82 is the largest long-side financing cost in the energy book, so the market that is hardest to hold physically is also the most expensive to hold as a financed long. And the UKOIL short charge of -200 is by a wide margin the largest published charge on any energy instrument here, which makes holding period, not just direction, a first-order decision on that side. What is swap in trading explains how the charge accrues, and what is triple swap day covers the Friday convention that applies to energy.
At the energies cap of 1:100 the required margin on one lot is 1 percent of notional, about USD 3 on NGas and about USD 88 on USOil at the snapshot levels. Leverage amplifies both the gains and the losses that follow a weather-driven repricing, and on a market that has printed 179 percent annualised volatility, that matters more than the arithmetic suggests. Risk analysis for commodity positions covers the sizing framework.
Frequently Asked Questions
Why is natural gas so much more volatile than oil?
Natural gas is more volatile because it is expensive to store and difficult to transport, so a change in supply or demand cannot be absorbed by inventories or by redirecting cargoes and has to be absorbed by the price instead. Oil is a liquid that can be stored cheaply and shipped anywhere, which gives the oil market a cushion the gas market does not have.
How volatile is natural gas compared with its own history?
The EIA reports 30-day historical volatility on the Henry Hub front-month contract of 179 percent in February 2022 against a 2017 to 2021 average of 48 percent, with readings of 81 percent in the fourth quarter of 2024 easing to 69 percent by mid-2025. Even the calm periods sit above the range crude oil typically occupies.
Why does the weather move natural gas prices so much?
Heating and cooling demand cannot be postponed or substituted within the days that a weather event lasts, which makes short-run gas demand almost perfectly inelastic. A forecast revision is therefore effectively a revision to the demand curve, and because supply cannot respond in that timeframe either, the adjustment falls entirely on price.
When is the natural gas storage report released?
The EIA publishes the Weekly Natural Gas Storage Report on Thursdays at 10:30 a.m. Eastern Time, covering the week that ended the previous Friday. The crude equivalent, the Weekly Petroleum Status Report, is published on Wednesdays at 10:30 a.m. Eastern Time. Volatility and spreads typically widen around both.
Has oil ever been more volatile than natural gas?
Yes, most dramatically on 20 April 2020, when the expiring WTI contract settled at minus USD 37.63 a barrel because storage at Cushing was close to full and holders of expiring contracts faced physical delivery with nowhere to store the barrels. That episode was oil temporarily losing the storage cushion that normally makes it the calmer of the two markets.
Do natural gas and oil prices move together?
Sometimes, through three linkages: industrial and power users switching between gas and fuel oil when the price ratio moves far enough, long-term LNG contracts priced against crude benchmarks, and associated gas produced as a by-product of oil drilling. Outside those channels the two markets are driven by different physical constraints and regularly diverge.
Follow the Energy Market on Vanto
Natural gas and crude oil are two markets with the same contract size and completely different behaviour, and the specifications above are the practical starting point for treating them differently. For crude in depth, see the Brent oil trading strategy guide and the commodities trading guide. For how volatility itself is measured and traded as an instrument, see how to trade the VIX. For the cost concepts that decide how long a position can be held, see what is swap in trading and what is the spread in trading. Live energy spreads, swaps, and margin requirements are in the trading calculator, and a demo account lets you watch a storage-report Thursday without risking capital.
Risk warning. Trading securities, futures, options, and contracts for differences are complex financial instruments that require knowledge and understanding. Prices can fluctuate significantly and securities may become valueless. Investors may incur losses exceeding the potential for profits. Trading on margin can result in losses greater than the amount initially deposited. Past performance is not necessarily a guide to future performance. The information in this article is for educational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any financial instrument. Consider whether CFD trading is appropriate for your circumstances and seek independent advice if necessary.