Last updated: September 24, 2026
Physical oil and gas trades connect producers and refineries with trading companies, distributors and final buyers that need energy or petroleum products. Although a transaction may appear to be a simple exchange between a seller and buyer, completing it can require contracts, logistics, inspections, banks, terminals, vessels, regulatory approvals and several carefully coordinated documents.
This guide explains how physical oil and gas trades work, from the producer or refinery to the final buyer. It covers the main participants, spot and term contracts, benchmark pricing, delivery arrangements, inspections, transfer of title and risk, payment, and the role of legitimate intermediaries.
If you first need to understand where production, transportation and refining fit within the industry, read our guide to upstream, midstream and downstream oil and gas.
Physical Trading Versus Financial Trading
Physical trading involves an agreement to supply an actual commodity. The seller must be able to deliver crude oil, natural gas, liquefied natural gas or a refined petroleum product that meets the agreed quantity, quality, location and delivery schedule.
Financial trading involves instruments whose value is connected to energy prices. Futures, options and swaps can be used for hedging, price discovery or speculation. Some contracts may allow or require physical delivery, while others are financially settled.
The two markets are connected. Futures prices and benchmark assessments can influence physical contract prices, while conditions in the physical market—including production, demand, inventories, transportation constraints and product availability—can influence financial prices.
The U.S. Energy Information Administration explains that spot and futures prices provide signals about present supply-and-demand conditions and market expectations.
This article focuses primarily on transactions in which an actual petroleum commodity is sold and delivered.
Who Participates in Physical Oil and Gas Trades?
The parties involved depend on the commodity, location, transaction size and delivery method. A physical trade may include several of the following participants.
Producers
Producers extract crude oil or natural gas from fields. The producer may be an international oil company, independent operator, national oil company or joint venture. Depending on the ownership structure, the producer may sell its own production or market volumes belonging to several project participants.
National Oil Companies and Governments
In some countries, a national oil company or authorized state entity markets the government’s share of production. The authority to sell, allocate or export these volumes depends on the country’s laws and contractual arrangements.
Refineries and Processing Plants
Refineries purchase crude oil and convert it into products such as gasoline, diesel, jet fuel, fuel oil, lubricants and petrochemical feedstocks. Refineries may also sell their finished products directly or through trading and marketing companies.
Natural-gas processing plants remove water, impurities and natural gas liquids before gas enters pipelines or undergoes further processing.
Physical Trading Companies
A physical trader buys, sells, stores, transports or blends commodities. A trader may purchase crude from a producer, arrange shipping and resell the cargo to a refinery. It may also buy refined products from one market and deliver them to another market where demand is stronger.
Unlike a broker who normally introduces parties, a principal trader becomes a contractual buyer or seller and assumes commercial obligations under the transaction.
Wholesalers and Distributors
Wholesalers buy refined products in bulk and supply fuel retailers, commercial users, industrial facilities or smaller distributors. They may operate terminals, trucks, depots or local distribution networks.
Final Buyers and End Users
The final buyer in a particular trade is the party purchasing the product for its own operational needs or for distribution into the final market. It could be a refinery, utility, airline, manufacturing company, petrochemical plant, fuel-marketing company or large industrial consumer.
Service Providers
Other participants may include:
- Banks and trade-finance institutions
- Vessel owners, charterers and shipping companies
- Pipeline and terminal operators
- Storage companies
- Independent inspection companies
- Insurance providers
- Customs agents and freight forwarders
- Legal, tax, sanctions and compliance advisers
These service providers may support the transaction without owning the commodity.
What Products Are Traded?
Physical oil and gas trades cover commodities with very different characteristics.
Crude Oil
Crude oils vary by density, sulfur content, acidity, contaminants and other qualities. Light, low-sulfur crude may be easier for some refineries to process than heavy, high-sulfur crude, but the value of a particular grade also depends on refinery configuration, location, transportation costs and market demand.
Refined Petroleum Products
These may include gasoline, diesel, jet fuel, fuel oil, naphtha, liquefied petroleum gas, bitumen and lubricants. Contracts normally define detailed quality specifications because fuel standards differ among countries and markets.
Natural Gas
Natural gas can be sold through pipelines under regional market arrangements. Contracts may specify energy content, pressure, delivery point, permissible impurities and daily or monthly quantities.
Liquefied Natural Gas
LNG is natural gas cooled into liquid form for transportation and storage. An LNG transaction may involve liquefaction capacity, specialized vessels, receiving-terminal access, regasification and delivery into a pipeline network.
The identity of the commodity is not enough. Every transaction should define the grade, specification, quantity, measurement unit, delivery location and acceptable tolerance.
Spot, Term and Offtake Agreements
Physical oil and gas trades can be structured in several ways.
Spot Transactions
A spot transaction generally covers a particular cargo or delivery within a relatively short period. It allows buyers and sellers to respond to immediate supply requirements, available production or changing market conditions.
Spot does not necessarily mean instant delivery or immediate cash payment. The parties still need time to complete contracting, nominations, transportation, inspection and settlement.
Term Contracts
A term contract covers repeated deliveries over an agreed period, such as monthly cargoes for one year. It may provide the seller with a stable outlet and give the buyer greater supply certainty.
Term contracts normally include scheduling procedures, volume tolerances, pricing formulas, credit requirements and remedies for failure to deliver or accept agreed quantities.
Offtake Agreements
An offtake agreement gives a buyer the right or obligation to purchase production from a project under agreed conditions. These arrangements may support project financing by demonstrating that future production has a committed market.
The exact legal meaning of “spot,” “term” or “offtake” depends on the contract. Parties should rely on the written terms rather than informal labels.
How a Physical Oil and Gas Trade Works
Although procedures vary, legitimate physical oil and gas trades usually follow a commercially understandable sequence.
Step 1: The Buyer Defines Its Requirement
The buyer determines what it needs, including:
- Commodity and quality specification
- Quantity and permitted tolerance
- Preferred delivery period
- Loading and discharge locations
- Delivery basis
- Required licences or import approvals
- Storage, terminal or pipeline capacity
- Acceptable pricing and payment structure
A buyer without the necessary infrastructure, regulatory approvals or financial capacity may be unable to complete the purchase even if it expresses genuine interest.
Step 2: The Seller Confirms Available Supply
The seller establishes what volume it can legally and operationally supply. A producer may nominate expected production, a refinery may offer available product, and a trader may offer inventory or contracted supply.
The contractual seller does not always need to be the original producer. However, it should have a legitimate and verifiable right to sell the product and perform its contractual obligations.
Step 3: The Parties Negotiate Commercial Terms
They discuss the product, quantity, price, delivery period, location, inspection, payment, credit support and allocation of responsibilities.
Early communications may include a request for quotation, expression of interest, term sheet or other preliminary document. Such communications do not automatically prove that supply, financing or a binding contract exists.
Step 4: Due Diligence and Credit Review Take Place
Each party evaluates the other. The seller may assess the buyer’s creditworthiness, purchasing authority and ability to receive the product. The buyer may assess the seller’s identity, authority, supply rights and performance record.
For a detailed verification framework, read How to Verify Authentic Offers in Oil and Gas.
Step 5: The Contract Is Negotiated and Signed
The sale and purchase agreement records the parties’ rights and obligations. Depending on the trade, it may cover:
- Product description and specification
- Quantity and tolerance
- Pricing formula and currency
- Delivery point and delivery period
- Measurement and inspection
- Transfer of title and risk
- Payment and credit support
- Taxes, freight, insurance and other costs
- Representations, warranties and compliance obligations
- Default, termination and force majeure
- Governing law and dispute resolution
The signed contract—not a generic procedure circulating online—should control the transaction.
Step 6: Operational Nominations Are Made
The parties coordinate the specific delivery. This may involve nominating a cargo, vessel, loading window, pipeline quantity, terminal, inspector or discharge location.
Operational teams must ensure that vessels, pipelines, tanks and receiving facilities are compatible and available.
Step 7: The Product Is Measured and Inspected
Quantity and quality may be determined at the loading point, discharge point or both. The contract should state where measurement occurs, which methods apply and whether an independent inspector’s determination is final or subject to review.
Step 8: Delivery Occurs
The commodity is transferred through a pipeline, terminal, vessel, truck, rail system or distribution network. Delivery should follow the agreed schedule and operational procedures.
Step 9: Documents Are Issued and Checked
Relevant documents are assembled and reviewed. The required set depends on the commodity, transport method, jurisdiction and payment terms.
Step 10: Payment Is Settled
Payment occurs according to the contract after the required conditions and documents have been satisfied. Adjustments may be made for final quantity, quality, pricing dates, freight, taxes or other agreed items.
This sequence explains how physical oil and gas trades work in general, but it is not a universal procedure. Real transactions are adapted to the product, parties, jurisdiction and delivery method.
How Physical Oil and Gas Prices Are Determined
Physical petroleum products are not all sold at one universal price. A contract may use a benchmark price plus or minus an agreed differential.
Benchmark Prices
Brent and West Texas Intermediate are widely followed crude-oil benchmarks. The Intercontinental Exchange describes Brent as an important global price reference, while WTI is central to North American oil pricing and futures trading.
Natural-gas pricing is often more regional because pipeline access, liquefaction, shipping and regasification infrastructure affect where gas can move. Henry Hub is an important U.S. benchmark, while other hubs and price references serve Europe and Asia.
Price Differentials
A crude grade may trade at a premium or discount to a benchmark because of:
- Density and sulfur content
- Expected refinery yield
- Location and transportation costs
- Regional availability
- Demand from suitable refineries
- Loading dates and market timing
- Operational or geopolitical risk
Refined products are also priced according to their specification, location, season, availability and demand.
Pricing Period
The parties must define which published quotations or market assessments will be used and the dates over which the price will be calculated. A formula might use an average of specified quotations around the loading or delivery date, adjusted by an agreed premium or discount.
Physical oil and gas trades therefore require more than comparing an offer with a price seen on a financial-news website. The quoted benchmark, product specification, delivery basis and pricing period must all match the proposed transaction.
Delivery and Logistics
Logistics determine how the commodity moves and which party pays particular costs or performs particular tasks.
Delivery may involve:
- A pipeline transfer at an agreed interconnection point
- Loading crude or products onto a tanker
- Delivery into or out of a storage terminal
- Truck or rail transportation
- LNG shipment between liquefaction and receiving terminals
- Transfer through a local gas or fuel-distribution network
Commercial contracts may use delivery terms such as FOB or CIF, sometimes with reference to the ICC Incoterms rules. However, petroleum contracts frequently contain detailed industry-specific provisions that modify or supplement standard delivery terminology.
The parties should not assume that a three-letter delivery term answers every question. The contract should clearly address loading, freight, insurance, terminal charges, vessel nomination, laytime, demurrage, import clearance, taxes and other relevant costs.
Inspection and Transaction Documents
Documents record important parts of a physical transaction, but their relevance depends on the transaction and the party that issued them.
Depending on the trade, documents may include:
- Sale and purchase agreement
- Commercial invoice
- Vessel or pipeline nominations
- Bill of lading or other transport document
- Certificate of quantity
- Certificate of quality or analysis
- Certificate of origin
- Insurance documentation
- Customs and regulatory documents
- Terminal receipts or stock records
- Delivery or discharge records
An independent inspector may measure quantity, take samples and test whether the product meets the contractual specification. The inspector’s exact duties and the legal effect of its findings should be defined in the contract.
A document should not be accepted merely because it contains familiar terminology or a recognizable company logo. Material information should be checked through appropriate independent channels.
Title, Risk and Physical Custody
Ownership, risk and custody are related but different concepts.
Title
Title refers to legal ownership of the commodity. The contract should state when title passes from seller to buyer.
Risk
Risk refers to responsibility for loss or damage. Risk may transfer at a defined physical point or event, but the timing depends on the contract.
Custody
Custody refers to physical possession or control. A terminal, pipeline company or vessel operator may hold the product without owning it.
These distinctions matter because a party can own product stored in a third-party terminal, while the terminal maintains physical custody. Similarly, title and risk may transfer at different moments if the contract provides for that arrangement.
Physical oil and gas trades should therefore identify the precise event, time and location at which relevant responsibilities change.
How Payment Works
Payment arrangements depend on the parties’ creditworthiness, relationship, transaction value and risk allocation.
Possible structures include:
- Payment before delivery
- Payment after delivery and final invoicing
- Documentary collection
- Documentary letter of credit
- Open-account terms for established counterparties
- Other independently negotiated trade-finance arrangements
The existence of a banking term does not make a transaction legitimate. The instrument must be genuine, issued or advised through appropriate banking channels, consistent with the contract and acceptable to the parties’ banks.
Payment instructions should identify the correct contractual beneficiary. Any unexplained request to pay an unrelated person, personal account or newly introduced third party requires careful investigation.
Parties entering substantial transactions should involve their own banks, lawyers and qualified trade-finance professionals rather than relying solely on instructions from the proposed counterparty or intermediary.
The Role of Traders, Brokers and Intermediaries
Intermediaries can perform legitimate functions, but their roles should be clear.
Principal Trader
A principal trader contracts in its own name as buyer or seller. It may take title, assume price or performance risk, arrange logistics and earn a trading margin.
Broker
A broker normally introduces potential counterparties or helps communication. Unless specifically authorized, a broker does not own the product, bind the seller or receive the purchase price.
Agent or Representative
An agent acts within authority granted by another party. The scope and validity of that authority should be confirmed directly with the principal.
Consultant or Facilitator
A consultant may provide market knowledge, documentation support or introductions. The service, compensation and authority should be defined clearly.
Problems arise when several intermediaries claim control over the same product, authority cannot be confirmed or commissions have no clear commercial basis. Our guide to transparency in oil and gas deals explains why identities, roles, authority and compensation should be properly documented.
Who Is the Final Buyer?
The final buyer is not always the individual consumer. It is usually the last commercial buyer in the transaction chain being examined.
For example:
- A refinery may be the final buyer of a crude-oil cargo.
- A fuel distributor may be the final buyer in a refinery’s wholesale sale.
- An airline may be the final buyer of jet fuel.
- A utility may be the final buyer of natural gas used for power generation.
- A petrochemical plant may be the final buyer of naphtha or natural-gas liquids.
- A manufacturing company may purchase gas directly for industrial use.
A trading company is not necessarily the final buyer merely because it signs a purchase contract. It may intend to resell the commodity before or after taking delivery.
A Simplified Transaction Example
Consider a refinery that needs a crude grade suitable for its equipment and desired product output.
- The refinery defines the required grade, quantity, delivery period and discharge port.
- A producer or trading company confirms that it can supply an appropriate cargo.
- The parties conduct due diligence and negotiate a benchmark-linked price, delivery basis and payment terms.
- They sign a sale and purchase agreement.
- A suitable vessel and loading window are nominated.
- The cargo is loaded, measured and sampled according to the contract.
- Shipping, quality and quantity documents are issued.
- The vessel transports the crude to the refinery’s receiving terminal.
- Title, risk and payment are handled at the events specified in the contract.
- The refinery processes the crude into fuels and other petroleum products.
The actual transaction may be considerably more complicated, but every stage should have a clear operational and commercial purpose.
Common Misunderstandings About Physical Oil and Gas Trades
“Every Seller Must Be the Producer”
A legitimate seller may be a producer, refinery, national oil company, authorized marketer or principal trading company. The important issue is whether the contractual seller has the authority and ability to supply the product.
“A Low Price Automatically Means a Good Deal”
Prices must be assessed against the correct product, specification, benchmark, delivery location, timing and contractual obligations. An apparent discount may disappear after freight, insurance, terminal charges, taxes and other costs are included.
“A Long Procedure Proves the Deal Is Genuine”
Length does not establish authenticity. A procedure should correspond to real commercial, banking and operational requirements.
“A Broker Controls the Product”
A broker may have a valid introduction or representation agreement without owning or controlling the commodity. Authority and product rights should not be assumed.
“A Document Proves Everything Written in It”
A document is evidence only to the extent that it is genuine, current, relevant and issued by an authorized source. Important documents should be independently verified.
For additional warning signs, read 10 Warning Signs of Oil and Gas Scams.
Frequently Asked Questions
What is a physical oil and gas trade?
It is a commercial transaction involving the purchase, sale and delivery of an actual petroleum commodity, such as crude oil, natural gas, LNG, gasoline, diesel or jet fuel.
What is the difference between a physical trader and a broker?
A physical trader may contract as the buyer or seller, take title and assume commercial obligations. A broker generally introduces parties or supports negotiations without owning the commodity.
How is the price of a crude-oil cargo calculated?
The contract may use a benchmark such as Brent or WTI, calculated over an agreed pricing period, with a premium or discount reflecting the crude’s quality, location, availability and other commercial factors.
Does the buyer always pay before the product is delivered?
No. Payment timing depends on the negotiated contract, credit relationship and trade-finance structure. Significant transactions should use arrangements reviewed by the parties’ banks and professional advisers.
Who confirms the quantity and quality of the product?
The seller, buyer, terminal and an independent inspection company may participate in measurement and testing. The contract should identify the applicable standards, location of inspection and effect of the results.
When does the buyer become the owner?
Ownership passes when the contract says title transfers. This may be connected to loading, delivery, payment or another defined event. It should not be assumed from physical possession alone.
Are all oil and gas transactions completed through the same procedure?
No. Procedures vary according to the commodity, parties, jurisdiction, transportation method, delivery location, credit arrangement and contract.
Final Thoughts
Understanding how physical oil and gas trades work requires separating the commercial transaction from the physical industry structure. Production creates supply, transportation and storage move it, and refineries or processing facilities convert it—but contracts, pricing, logistics, inspection, title transfer and payment connect the product to its buyer.
A credible transaction should have identifiable parties, a clearly specified product, commercially reasonable pricing, workable logistics, appropriate documentation and payment terms that match the parties’ obligations.
No generic online procedure applies to every transaction. Buyers and sellers should understand the commercial purpose of each step and use independent legal, banking, compliance, insurance and technical professionals when the value or complexity of the transaction requires them.
Disclaimer: This article is provided for general educational and fraud-awareness purposes only. It does not constitute legal, financial, investment, banking, tax, sanctions, insurance or compliance advice. Requirements vary by jurisdiction, commodity and transaction. Obtain advice from appropriately qualified professionals before entering into a significant oil and gas transaction.