What Is WTI Crude Oil and Why Does It Matter?

West Texas Intermediate (WTI) is a grade of light, sweet crude oil produced in the United States that serves as the country’s main oil-price benchmark. Its price is set by futures contracts traded on the New York Mercantile Exchange (NYMEX) and physically settled at Cushing, Oklahoma. Alongside Brent crude, WTI is one of the two most widely quoted oil prices in the world.

Definition

WTI is a specific grade of crude oil — not a company or a place, but a quality standard used for pricing. It is classified as “light” because of its high API gravity (around 39–40° API) and “sweet” because of its low sulfur content (roughly 0.2–0.4%). These properties make it relatively easy and cheap to refine into gasoline and diesel, which is part of why it became a pricing reference in the first place.

The oil itself is produced across Texas, New Mexico, North Dakota, Oklahoma and other US onshore basins — most of it today from the Permian Basin — then gathered and blended through pipeline networks. The “WTI” price traders quote is for delivery at Cushing, Oklahoma, a major pipeline and storage hub that is the designated delivery point for the NYMEX WTI futures contract.

How the WTI Price Is Set

WTI’s price comes from the NYMEX Light Sweet Crude Oil futures contract, which has traded since 1983. Each contract represents 1,000 barrels for delivery at Cushing. Because the contract is liquid and transparent, its price is treated as the reference (“benchmark”) price for a large share of US domestic crude — other barrels are priced at a stated differential (“WTI plus/minus $X”) rather than negotiated from scratch.

Three factors drive the level of that benchmark price day to day:

• US supply — output from shale basins, chiefly the Permian Basin, plus Gulf of Mexico production and imports.
• Global supply and OPEC+ policy — WTI tracks the global oil market closely, since US crude is exported and competes with Brent-priced barrels; OPEC and its OPEC+ partners influence global supply and therefore both benchmarks.
• Inventories and logistics at Cushing — storage levels at Cushing and pipeline bottlenecks can temporarily widen or narrow the WTI–Brent spread, independent of global fundamentals.

Why It Matters

WTI is the reference price used to set the value of most crude oil produced, bought and sold in the United States, and it underlies retail fuel prices, refining margins, and the economics of US shale drilling. Because the US is one of the world’s largest producers and consumers of oil, WTI also moves global energy markets and is tracked by central banks, airlines, shippers and governments as an inflation and cost indicator.

WTI and Brent usually move together, but the gap between them (the “WTI–Brent spread”) is itself a signal: it widens when US production is rising faster than pipeline and export capacity can absorb, and narrows when US crude flows more freely to international buyers via Gulf Coast export terminals.

Where It Is Used

WTI prices most crude produced onshore in the continental United States. It is the reference for US refiners’ feedstock costs, for US oil producers’ revenue (including large independents active in the Permian Basin), and for financial products — futures, options and exchange-traded funds — used by traders, airlines and industrial consumers to hedge fuel costs. Since the US lifted its decades-old crude export ban in December 2015, WTI-priced barrels have also flowed into the international market, competing directly with Brent-linked grades in Europe and Asia.

Key Characteristics

API gravity and sulfur figures are typical published ranges for each grade and vary slightly by source and by the specific blend delivered; they are not official daily specifications.

Related Technologies and Concepts

• NYMEX futures contract — the exchange-traded instrument that generates the daily WTI price.
• Cushing, Oklahoma — the pipeline hub and storage complex that is the designated physical delivery point.
• WTI–Brent spread — the price gap between the two benchmarks, watched as an indicator of US export capacity and relative supply.
• Shale production / hydraulic fracturing — the drilling technology that made the Permian Basin the dominant source of WTI-priced barrels; see The Daily Energy’s fracking page.
• Contango and backwardation — futures-curve shapes that reflect whether the market expects prices to rise or fall, and that affect storage economics at Cushing.

Real-World Examples

WTI’s history includes some of the most dramatic price moves in commodity markets: it briefly traded negative in April 2020 as storage at Cushing filled up during the COVID-19 demand collapse, and it has also spiked sharply during supply shocks such as the 1990–91 Gulf War and the 2022 disruption following Russia’s invasion of Ukraine. More recently, the US Energy Information Administration’s September 2026 Short-Term Energy Outlook forecast Brent crude averaging around $90 per barrel in the second half of 2026, with WTI typically trading a few dollars below Brent; the EIA also projected US crude oil production easing slightly to about 13.5 million barrels per day in 2026, after reaching a record above 13.6 million barrels per day in mid-2025. Because oil-price forecasts shift from one monthly outlook to the next, read any single-quarter figure as a snapshot rather than a fixed fact, and check the EIA’s current Short-Term Energy Outlook for the latest numbers.

Day-to-day, WTI shows up in TDE’s own coverage of events that move it — for example reporting on why oil prices are rising, on Saudi Aramco’s CEO warning that global oil inventories are thin, and on tanker-tracked oil flows through the Strait of Hormuz — all of which feed into the supply and sentiment signals that move both WTI and Brent.

FAQ

What does WTI stand for?
West Texas Intermediate — named for the light, sweet crude oil historically produced in West Texas that the grade was originally based on.

Why is WTI usually cheaper than Brent?
The gap mainly reflects logistics: WTI is priced at an inland US hub (Cushing, Oklahoma) with pipeline-dependent access to export markets, while Brent is a seaborne grade that can move freely to global buyers. When US pipeline and export capacity is ample, the spread narrows; when it is constrained, WTI tends to trade at a wider discount.

Where is WTI crude oil actually delivered?
NYMEX WTI futures settle with physical delivery at Cushing, Oklahoma, a hub connected by pipeline to US producing basins (chiefly the Permian) and to Gulf Coast refineries and export terminals.

Is WTI light or heavy crude oil?
Light. Its high API gravity (roughly 39–40°) means it is less dense than heavier grades like many Canadian or Venezuelan crudes, and it yields more gasoline and diesel per barrel when refined.

Can WTI crude oil prices go negative?
Yes — it happened in April 2020, when collapsing demand and near-full storage at Cushing left traders holding futures contracts briefly paying buyers to take delivery rather than pay for storage.

Related The Daily Energy Pages

• US Energy Profile: Oil, Gas, Power and Policy (2026)
• What Is Brent Crude and Why Does It Matter?
• What Is OPEC? Members, History and How It Sets Oil Policy
• What Is Fracking (Hydraulic Fracturing) and How Does It Work?
• Saudi Aramco: Ownership, Leadership and Projects
• ExxonMobil: Ownership, Leadership and Projects
• Why Are Oil Prices Rising?
• Tanker Trackers Say Hormuz Oil Flows Are Nearing Pre-War Levels

Sources

• U.S. Energy Information Administration, Short-Term Energy Outlook, September 2026
• U.S. Energy Information Administration, Petroleum & Other Liquids / crude oil benchmark glossary
• CME Group, NYMEX WTI Light Sweet Crude Oil futures contract specifications

Illustrative image. Photo: Quintin Soloviev, CC BY 4.0, via Wikimedia Commons — source