Contango vs Backwardation: Reading the Oil Futures Curve

Contango is when futures for later delivery cost more than near-term futures or spot oil, so the curve slopes upward. Backwardation is the reverse: near-term oil costs more, and the curve slopes down. Contango usually signals ample supply and storage costs; backwardation usually signals a market that needs barrels now.

Headlines quote “the oil price” as if there were only one. There isn’t. On any given day, crude trades for delivery next month, in six months, in two years and beyond, and each of those contracts has its own price. Line them up from nearest to furthest and you get the futures curve, often called the term structure.

The shape of that line tells you more about the physical market than the headline price does. If you trade futures markets, or anything priced off them, reading the curve is a core skill. It’s also one of the concepts readers ask about most when they begin trading with NumanCap, usually right after an oil position behaves differently from what the spot price suggested it should.

The two shapes at a glance

Here are the essentials in the shortest form we can manage:

• Contango: later-dated contracts trade above nearer ones. The curve rises from left to right, and the market is paying you to store oil.
• Backwardation: nearer contracts trade above later ones. The curve falls from left to right, and the market is paying a premium for oil that is available now.
• Flat curve: prices across months are roughly equal, usually a sign of a market in rough balance.

Feature	Contango	Backwardation
Curve shape	Slopes upward	Slopes downward
Near-term vs later prices	Near-term cheaper	Near-term more expensive
Typical physical market	Plentiful supply, rising inventories	Tight supply, falling inventories
Incentive it creates	Buy now, store, sell forward	Sell from storage now, don’t hoard
Effect on a long position rolled forward	Rolling tends to cost money (negative roll yield)	Rolling tends to add return (positive roll yield)

How to read an oil futures curve in five steps

You don’t need special software. Most exchange websites and charting platforms show settlement prices by contract month. Then work through it in this order:

1. Pick the benchmark. WTI and Brent have separate curves, and they don’t always share the same shape. Compare like with like.
2. Plot the months in order. Start with the front month (the nearest contract still trading) and move out at least 12 months.
3. Check the slope near the front. The gap between the first and second months, called the prompt spread, is the most sensitive gauge of today’s physical tightness.
4. Check the slope further out. A curve can be backwardated at the front and in contango later. That mix usually means the market expects a short-term squeeze to ease.
5. Watch how it changes over time. A single snapshot is less useful than the trend. A backwardation that keeps deepening says something different from one that’s fading.

Why contango happens: the cost of carry

Storing oil isn’t free. Someone who buys crude today and sells it for future delivery has to cover the expense of holding it, and the futures price for later months tends to reflect that. In a well-supplied market, the carry costs include:

• Storage: tank fees at hubs such as Cushing, Oklahoma, or charter costs for tankers used as floating storage.
• Financing: the interest cost of the money tied up in the barrels.
• Insurance: protection for the stored cargo.

When the gap between near and far contracts exceeds those costs, traders can lock in a profit by buying now, storing and selling forward. That trade, known as cash-and-carry, keeps pulling barrels into storage until tanks fill up or the spread narrows. It’s also why deep contango and rising inventories usually appear together.

Why backwardation happens: paying for oil now

In a tight market, refiners and other users value having oil on hand today. Economists call this benefit the convenience yield: the practical advantage of holding physical supply when it’s scarce. Buyers will pay a premium for prompt barrels, pushing the front of the curve above later months.

Backwardation also sends an economic signal. It penalizes hoarding: anyone holding oil in storage can sell it today for more than they’d get in the future. That draws inventories down, which is exactly what a short market needs. Oil has spent long stretches in mild backwardation, which is one reason many analysts treat it as the market’s normal state when supply and demand are reasonably balanced.

Three moments when the curve told the real story

April 2020: super contango

Pandemic lockdowns destroyed demand faster than producers could cut output. Near-term oil became almost unwanted while later months held up better, pushing the curve into what traders called super contango. Storage on land ran short, so traders turned to tankers: Reuters reported in April 2020 that oil held at sea had reached a record of roughly 160 million barrels.

The extreme came on April 20, 2020, when the expiring May WTI contract fell to minus US$37.63 a barrel. Research in The Energy Journal linked the crash partly to cash-and-carry traders who had filled storage at Cushing, leaving holders without booked storage scrambling to exit.

2022: a supply shock after Russia’s invasion of Ukraine

The curve flipped the other way when supply fears took over. The U.S. Energy Information Administration reported that front-month Brent and WTI futures both rose above US$100 a barrel after Russian forces further invaded Ukraine on February 24, 2022, with Brent closing just below US$115 on March 2. Near-term contracts carried steep premiums over later ones as buyers competed for available cargoes.

2026: backwardation on a scale few had seen

After military action involving Iran severely disrupted tanker traffic through the Strait of Hormuz from late February 2026, Brent swung into one of the steepest backwardations in its history. Energy analyst John Kemp reported that the six-month Brent spread hit a record above US$37 a barrel on March 31, 2026. On March 26, CNBC noted that December Brent was trading about 17 per cent below the front month.

That shape carried a message the headline price didn’t: the market was paying heavily for oil now while expecting the disruption to ease later. Kemp later reported the spread had narrowed sharply by June as flows adjusted. The curve had effectively forecast its own normalization.

Roll yield: why curve shape changes your returns

Futures expire, so anyone holding a position for more than a month or two has to roll it: close the expiring contract and open a later one. The price difference between those contracts creates a gain or loss that has nothing to do with whether “oil went up.”

A hypothetical example in contango shows how it works:

1. A fund holds the front-month contract at US$70 a barrel.
2. Near expiry, it sells that contract and buys the next month at US$72.
3. If spot prices stay flat, the new contract tends to drift down toward the spot price as it approaches its own expiry.
4. Repeat monthly, and the fund keeps paying up at each roll, losing roughly US$2 a barrel each time even though oil “didn’t move.”

In backwardation, the arithmetic reverses: the fund rolls into cheaper contracts that tend to rise toward spot, adding return. This is why long-term holders of commodity funds that hold futures, including some listed in Canada, can see results that differ sharply from the spot oil chart. The mechanics of the roll itself, including timing and costs, are covered in our guide to what happens at futures rollover.

What the curve means for Canadians

Canada is a major oil producer, so the curve matters here in ways it doesn’t for most importing countries. A few practical links:

• Producers and hedging: Canadian oil companies that hedge future output can lock in prices only along the curve that exists. In steep backwardation, the price available for next year’s barrels may sit well below today’s headline price.
• Investors in oil funds: Canadians holding exchange-traded products built on oil futures are exposed to roll yield, positive or negative, on top of price moves.
• The loonie: oil-driven moves in the Canadian dollar tend to follow front-month headlines, but the longer-dated curve better reflects what producers can actually earn over time.

The view of the NumanCap education team is that the prompt spread deserves as much attention as the headline price. A rally with a flattening curve and a rally with a deepening backwardation can look identical on a standard chart, yet they describe very different physical markets.

Our take

Contango and backwardation aren’t trading signals on their own. They’re descriptions of supply, storage and urgency, and they explain why two people who both “bought oil” can end up with different results. The curve is where the physical market speaks, and it often speaks earlier than the headline price.

If there’s one habit we’d suggest, it’s this: before taking any view on oil, look at where the front month sits relative to the months behind it. It takes a minute, and it often changes the question you’re asking. This guide was written and reviewed by the people behind our platform, and at NumanCap we’d rather readers understand the structure of a market before they trade its price. Leverage magnifies both gains and losses, and oil can gap sharply on supply news, so size positions accordingly.

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