Glossary: Commodity and Energy Terms

About This Glossary

This reference covers the essential vocabulary for understanding commodity and energy markets—the terms you'll encounter in futures reports, EIA releases, and broker research. Whether you're reading about crude oil benchmarks or trying to decode a futures curve, this is your starting point.

TL;DR: A quick-reference glossary of 30 key commodity and energy terms, from backwardation to WTI, with practical context for each definition so you understand not just what the term means but why it matters in real markets.

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A–B

Backwardation

A futures curve shape where near-term contract prices are higher than longer-dated prices. This typically signals tight current supply or strong immediate demand—the market is paying a premium for delivery now rather than later. Backwardation has historically been associated with positive roll yield for long futures holders (because you sell the expiring contract at a higher price and buy the next one cheaper). When crude oil inventories drop below five-year averages, the front of the curve often flips into backwardation.

Basis

The difference between the spot price of a commodity at a specific location and the price of a related futures contract. Basis reflects local supply-demand dynamics, transportation costs, and product quality differences. For example, crude oil priced at a Gulf Coast refinery might trade at a $2/barrel premium to the NYMEX WTI contract because of local refinery demand—that $2 is the basis. Traders and hedgers watch basis closely because it determines the effectiveness of a futures hedge (a wide or volatile basis means the hedge is less precise).

Benchmark

A standard reference price that the market uses to price transactions. Brent crude is the benchmark for roughly 80% of global oil trades; Henry Hub is the benchmark for US natural gas. Benchmarks matter because they create a common language—when a refiner agrees to buy crude at "Brent minus $3," both parties know exactly what that means. Without benchmarks, every transaction would require custom price negotiation.

Brent Crude

The primary international crude oil benchmark, based on light, sweet crude from the North Sea. Brent trades on the Intercontinental Exchange (ICE) and prices roughly 80% of the world's internationally traded oil. It serves as the reference for crude cargoes from Europe, Africa, and the Middle East. Brent's dominance comes from its location (accessible to Atlantic Basin refiners) and its liquid derivatives market.

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C

CFTC (Commodity Futures Trading Commission)

The US federal agency that regulates commodity futures, options, and swaps markets. The CFTC sets position limits, monitors market activity for manipulation, and publishes the weekly Commitments of Traders (COT) report—a widely followed breakdown of positioning by commercial hedgers, managed money, and other trader categories. The agency's enforcement actions often signal regulatory priorities that affect market structure.

Contango

A futures curve shape where longer-dated contract prices exceed near-term prices. Contango is the more common state for most commodity markets and typically indicates adequate current supply with storage available. The price premium for future delivery compensates holders for the cost of carry (storage, insurance, financing). In deep contango, some traders pursue "cash-and-carry" arbitrage: buy physical commodity, store it, and sell a futures contract to lock in profit. For a deeper look at how contango and backwardation shape returns, see our article on Commodity Futures: Storage and Convenience Yield.

Convenience Yield

The implied benefit of holding physical inventory rather than a paper futures contract. If you're a refiner, having crude oil in your tanks means you can keep running when a supply disruption hits—that operational flexibility has real value. Convenience yield is what makes backwardation possible: when the benefit of holding physical commodity exceeds the cost of carry, near-term prices can trade above deferred prices.

Cost of Carry

The total cost of holding a physical commodity over time, including storage fees, insurance, financing costs, and deterioration (if applicable). Cost of carry is fundamental to futures pricing—in a well-supplied market, the futures price should approximately equal the spot price plus cost of carry. When futures prices deviate significantly from this relationship, arbitrage opportunities arise.

Crack Spread

The price difference between crude oil and its refined products (primarily gasoline and heating oil/diesel). The crack spread represents the refining margin—what a refinery earns by "cracking" crude into products. The most common calculation is the 3-2-1 crack spread: 3 barrels of crude refined into 2 barrels of gasoline and 1 barrel of distillate. Refiners use crack spread futures to hedge their operating margins.

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D–F

Delivery Month

The calendar month during which a futures contract expires and physical delivery can occur. Most futures positions are closed or rolled before the delivery month—fewer than 3% of commodity futures contracts result in actual physical delivery. The distinction matters because prices can behave erratically as the delivery month approaches (as happened dramatically with WTI crude in April 2020, when the May contract briefly traded at negative $37/barrel due to storage constraints).

EIA (Energy Information Administration)

The US Department of Energy agency that collects, analyzes, and publishes energy data and forecasts. The EIA's weekly petroleum status report (released every Wednesday) and weekly natural gas storage report (released every Thursday) are among the most market-moving data releases in commodity markets. Traders watch these numbers closely because inventory changes drive short-term price movements. The EIA also publishes the influential Short-Term Energy Outlook (STEO) and Annual Energy Outlook (AEO).

FERC (Federal Energy Regulatory Commission)

The US federal agency that regulates interstate transmission of electricity, natural gas, and oil. FERC approves pipeline construction, sets transmission rates, and oversees wholesale power markets. For commodity investors, FERC decisions on pipeline permits and rate structures can significantly affect regional price differentials (basis) and the economics of energy infrastructure companies.

Futures Contract

A standardized agreement to buy or sell a specific quantity of a commodity at a predetermined price on a specified future date. "Standardized" is the key word—exchange-traded futures specify exact quantity (e.g., 1,000 barrels of crude oil per WTI contract), quality grade, delivery location, and settlement procedures. This standardization creates liquidity, allowing hedgers and speculators to enter and exit positions efficiently. For more on how futures work in practice, see Using Futures to Hedge Commodity Exposure.

Futures Curve

The series of futures prices plotted across sequential delivery months, showing the term structure of commodity prices. The shape of the curve (contango or backwardation) tells you about current supply-demand balance, storage economics, and market expectations. Analyzing how the curve changes over time—steepening, flattening, or inverting—is central to commodity trading and risk management.

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H–M

Henry Hub

The primary US natural gas pricing point and delivery location for NYMEX natural gas futures, located in Erath, Louisiana. Henry Hub sits at the intersection of multiple major pipeline systems, making it a natural pricing nexus. Virtually all US natural gas transactions reference Henry Hub pricing, and it increasingly influences global LNG pricing as US export capacity grows.

Initial Margin

The deposit required to open a futures position, serving as a performance bond. Initial margin is typically 5-15% of the contract's notional value, which creates significant leverage. For a WTI crude contract worth approximately $70,000 (1,000 barrels × $70/barrel), the initial margin might be $6,000-$8,000. This leverage amplifies both gains and losses.

LME (London Metal Exchange)

The primary global exchange for industrial metals futures, including copper, aluminum, zinc, nickel, lead, and tin. The LME is distinctive for its open-outcry ring trading (one of the last remaining pits), its system of global warehouses for physical delivery, and its unique contract structure (daily prompt dates rather than monthly expiration). LME prices serve as the global benchmark for base metals pricing.

Maintenance Margin

The minimum account balance required to hold an open futures position. When your account falls below the maintenance margin level (typically 70-80% of initial margin), your broker issues a margin call requiring you to deposit additional funds. If you don't meet the margin call, the broker can liquidate your position. The daily mark-to-market process means margin calls can come quickly during volatile markets.

Mark-to-Market

The daily settlement process where every open futures position is revalued at the current market price, and the resulting gain or loss is immediately credited to or debited from your account. This process eliminates the buildup of unrealized losses and reduces counterparty credit risk—a key feature that distinguishes exchange-traded futures from over-the-counter contracts. Mark-to-market is why commodity futures require both sufficient margin and daily cash management.

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N–O

NYMEX (New York Mercantile Exchange)

A division of CME Group that lists energy and precious metals futures contracts. Key NYMEX products include WTI crude oil, Henry Hub natural gas, RBOB gasoline, heating oil, gold, silver, platinum, and palladium. NYMEX is the world's largest physical commodity futures exchange by volume and the primary price-discovery venue for North American energy markets.

OPEC (Organization of the Petroleum Exporting Countries)

An intergovernmental organization of 13 major oil-producing nations (as of 2024) that coordinates production policies to influence global oil prices and manage supply. Founded in 1960, OPEC's core members include Saudi Arabia, Iraq, Iran, UAE, and Kuwait. OPEC's production decisions—announced after ministerial meetings—are among the most impactful events in energy markets. Saudi Arabia, as OPEC's largest producer and holder of most spare capacity, effectively acts as the group's swing producer.

OPEC+

An expanded coalition including OPEC members plus other major producers (most notably Russia, Kazakhstan, and Mexico), formed in late 2016 to coordinate production cuts. OPEC+ controls roughly 40% of global oil production, giving the group significant influence over prices. The alliance has been tested by internal disputes (notably between Saudi Arabia and Russia in early 2020) but has generally held together through successive production agreements.

Open Interest

The total number of outstanding futures contracts that have not been settled or closed. Rising open interest alongside rising prices suggests new money entering long positions (bullish conviction). Rising open interest alongside falling prices suggests new short positions (bearish conviction). Declining open interest indicates positions being closed. Open interest is distinct from volume—volume counts every trade, while open interest counts only the net number of contracts still active.

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P–R

Position Limit

The maximum number of futures contracts a trader can hold in a commodity, set by exchanges and regulators (primarily the CFTC in the US). Position limits exist to prevent excessive speculation and market manipulation. Limits vary by commodity and by the period (spot month limits are tighter than all-months-combined limits). Bona fide hedgers—companies with physical commodity exposure—can apply for exemptions from speculative position limits.

Roll

The process of closing an expiring futures position and simultaneously opening a new position in a later-dated contract to maintain market exposure. Most commodity index funds and ETFs must roll their positions regularly because they don't want to take physical delivery. The timing and execution of rolls can significantly affect returns, particularly in markets with steep contango or backwardation.

Roll Yield

The gain or loss generated from the rolling process. In backwardation, roll yield is positive—you sell the expiring contract at a higher price and buy the deferred contract at a lower price. In contango, roll yield is negative—you sell low and buy high. Over multi-year periods, roll yield can be a major component (positive or negative) of total returns from commodity futures investments. This is why the shape of the futures curve matters as much as the direction of spot prices.

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S–W

Spot Price

The current market price for immediate delivery of a commodity. "Immediate" typically means delivery within a few days, depending on the commodity and market convention. The spot price reflects the most current supply-demand balance and is the reference point from which futures prices, basis, and forward curves are calculated.

Storage Report

Weekly data releases showing inventory levels for key commodities. The two most closely watched are the EIA's Weekly Petroleum Status Report (crude oil, gasoline, and distillate inventories) and the EIA's Weekly Natural Gas Storage Report. Inventory data relative to five-year seasonal averages is a primary driver of short-term commodity price movements—a larger-than-expected build typically pushes prices down, while a larger-than-expected draw pushes prices up.

WTI (West Texas Intermediate)

The primary US crude oil benchmark, a light, sweet crude grade delivered at Cushing, Oklahoma, and traded on NYMEX/CME. WTI typically trades at a discount to Brent due to its inland delivery point and the logistics of moving crude from Cushing to coastal refineries and export terminals. The WTI-Brent spread fluctuates based on pipeline capacity, US production levels, and export economics. For more on how WTI and Brent compare, see Energy Sector Fundamentals and Commodity Exposure.

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How to Use This Glossary

Why this matters

Commodity markets have their own language, and misunderstanding a single term—confusing contango with backwardation, or initial margin with maintenance margin—can lead to costly errors.

A few practical pointers:

• Start with the futures curve terms (contango, backwardation, roll yield, convenience yield)—these concepts are interconnected and drive most of the return dynamics in commodity investing
• Understand the benchmarks (Brent, WTI, Henry Hub) before reading market commentary, since nearly every price discussion references them
• Know the regulators and data sources (CFTC, EIA, FERC)—their publications and decisions move markets weekly

For official definitions and additional terminology, the EIA glossary and CFTC glossary are authoritative references.

This glossary is updated as new terms become relevant to commodity market discussions. Subscribe for updates as new terms are added.