JET A-1: The Global Standard
JET A-1 is the kerosene-type aviation turbine fuel used by the large majority of commercial and military aircraft outside North America. It is governed primarily by two overlapping specifications — DEF STAN 91-091 (the UK Ministry of Defence standard, widely used internationally) and ASTM D1655 (the American specification, with JET A being the US domestic variant with a slightly different freeze point requirement). For practical purposes, most international jet fuel trade references JET A-1 and these two specifications interchangeably, though buyers should confirm which specific standard their aircraft and operating environment requires.
Why Aviation Fuel Trading Is Different
The defining characteristic of jet fuel trading, compared to other refined products, is the direct safety relevance of fuel quality. Contaminated or off-specification jet fuel is not merely a commercial problem to be resolved through a dispute process — it is a potential flight safety hazard. This shapes the entire market structure: quality control standards are stricter, the chain of custody from refinery to aircraft is more tightly governed, and the tolerance for ambiguity in documentation is correspondingly lower than in many other commodity categories.
The Joint Inspection Group (JIG), an industry body bringing together major oil companies and airlines, publishes widely adopted standards specifically covering the quality control, handling, and into-plane fuelling processes for aviation fuel — standards that go beyond the base chemical specification (DEF STAN 91-091 or ASTM D1655) to govern how fuel is handled at every stage between refinery and aircraft tank.
Market Participants
The jet fuel market includes several distinct categories of buyer and seller:
- Airlines — typically the largest-volume buyers, often combining physical fuel procurement with financial hedging programs given fuel's significant share of total operating costs.
- Fixed-base operators (FBOs) — fuel suppliers serving general and business aviation at regional and private airports, often operating at smaller volumes than major commercial carriers.
- Independent fuel traders — intermediaries who buy and sell jet fuel positions, sometimes holding inventory, sometimes operating on a back-to-back basis without taking physical possession.
- Refineries and terminal operators — the supply side, producing or storing JET A-1 for sale to airlines, traders, and FBOs.
- Into-plane service providers — companies that physically fuel aircraft at the airport, sometimes operating as an extension of a terminal supplier and sometimes as an independent service layered on top of a separate fuel purchase.
Bulk Sale vs Into-Plane Supply
It's important to distinguish between two related but distinct transaction types. A bulk or terminal sale involves the transfer of fuel ownership at a storage facility — common in trader-to-trader or trader-to-airline transactions where the buyer separately arranges onward delivery to the aircraft. An into-plane supply agreement, by contrast, bundles the fuel itself with the physical fuelling service at a specific airport, typically structured as an ongoing contract between an airline and a supplier operating at that airport. Airlines setting up service at a new airport typically need to establish an into-plane agreement specifically, which is a different sourcing exercise than a one-off bulk cargo purchase.
Documentation and Quality Assurance
Given the safety dimension, documentation expectations in jet fuel trade are generally more rigorous than in other refined product categories. Buyers should expect, at minimum:
- A Certificate of Quality referencing the specific specification (DEF STAN 91-091 and/or ASTM D1655) from an accredited testing laboratory, with actual tested values rather than a generic compliance statement.
- A Certificate of Origin confirming the refinery or terminal source.
- Evidence of JIG-compliant handling where the transaction involves into-plane delivery, confirming the supply chain meets industry quality control standards beyond the base fuel specification.
- Clear chain-of-custody documentation, particularly for cargoes that have passed through multiple storage or blending points before reaching the buyer.
Pricing Conventions
Like crude oil and diesel, jet fuel is generally priced against a benchmark reference — commonly a regional jet fuel price assessment published by a recognised price reporting agency — plus or minus a differential reflecting location, quality, and supply-demand conditions. Airlines with significant procurement volumes frequently combine physical purchase agreements with financial hedging instruments (swaps or options referencing jet fuel or related crude benchmarks) to manage price volatility, though the hedging itself is typically arranged separately from the physical fuel purchase.
Getting Started as a New Entrant
Airlines, traders, or FBOs entering the jet fuel market for the first time — whether expanding into a new region or establishing their first procurement relationship — benefit most from working with counterparties who can demonstrate a clear, traceable supply chain and JIG-aligned handling standards from the outset. Given the elevated documentation and safety expectations in this market compared to other fuel categories, it is worth budgeting more time for initial counterparty verification than might be typical in, for example, a diesel transaction of similar size.