Crude Tankers
Baltic Exchange
The cost of floating two million barrels of crude across an ocean: a leveraged bet on oil trade flows, priced in Worldscale and watched through the Baltic Dirty Tanker Index.
Top Producers
crude tanker fleet ownership by dwt, 2025
Top Consumers
seaborne crude import demand by destination, 2024
Main Uses
dirty tanker cargo mix
Top Exporters
share of seaborne crude oil exports, 2024
Top Importers
share of seaborne crude oil imports, 2024
VLCC capacity
roughly 2 million barrels
Suezmax capacity
roughly 1 million barrels
Aframax capacity
roughly 700,000 barrels
VLCC fleet
roughly 900 vessels
as of 2025
2020 floating-storage peak
above $200,000/day
spring 2020
Benchmark route
TD3C, Middle East Gulf to China
Crude tankers, the dirty tanker market, carry unrefined oil from wellhead regions to refineries across the world. The fleet is sorted by size. The VLCC, or Very Large Crude Carrier, holds roughly 2 million barrels and is the Middle East to Asia workhorse; the Suezmax carries roughly 1 million barrels; the Aframax roughly 700,000 barrels and dominates shorter regional runs. The Baltic Exchange polls shipbrokers each business day and compounds route assessments into the Baltic Dirty Tanker Index, with the TD3C route, Middle East Gulf to China on a VLCC, the most watched single benchmark.
Crude tanker hire is quoted through Worldscale, a system unique to tankers. Each year a flat rate in dollars per tonne is published for every route, reflecting a notional round voyage at a reference cost; deals are then struck as a percentage of that flat, so a fixture at WS 80 means 80 percent of the published flat rate. The convention lets a single percentage number carry across routes of wildly different distance and cost.
The market is violently cyclical because the fleet floats for decades while demand swings with oil flows. Rates spiked in 1973, 2004, and 2008, and again in 2020 when contango sent traders chasing VLCCs as floating storage and daily earnings briefly cleared $200,000. The 2022 invasion of Ukraine rerouted Russian crude toward Asia, lengthening voyages and spawning a shadow, or dark, fleet of older tankers, now roughly a fifth of the crude tanker count, that carries sanctioned Russian and Iranian barrels outside Western insurance.
How It Trades
| Venue | Baltic Exchange (BDTI index publication); physical fixtures brokered OTC on Worldscale terms; FFAs cleared mainly via EEX and SGX |
| Benchmark contract | Forward Freight Agreements on Baltic dirty routes, the VLCC TD3C (Middle East Gulf to China) most watched; the BDTI itself is a barometer, not the main traded instrument |
| Contract size | Voyage FFAs traded in lots of cargo tonnage (e.g. multiples of 1,000 tonnes); timecharter FFAs in days per month |
| Price terms | Worldscale points (a percentage of the annually published flat rate) for physical fixtures; USD per tonne or Worldscale for FFAs |
| Settlement | Cash settled against the arithmetic average of the relevant Baltic dirty assessment over the settlement month; no physical delivery |
| Typical curve | Highly seasonal and event-driven: rates firm into the northern-hemisphere winter on heating-driven crude runs and spike on sanctions, chokepoint scares, and floating-storage demand. The curve flips between contango and backwardation with the cycle. |
| Liquidity | Thinner than dry bulk and far thinner than oil futures. FFA volume concentrates in VLCC and Suezmax routes within the front months; most risk transfer still happens through brokered physical fixtures rather than paper. |
Where It Trades
approximate share of dirty-tanker traded volume, 2025; the Baltic Exchange sets the BDTI but most volume is brokered physical on Worldscale, with cleared FFAs thinner than in dry bulk
Supply and Demand
Top producers
- The global crude tanker fleet, roughly 900 VLCCs plus the Suezmax and Aframax fleets beneath them
- Shipyards in South Korea, China, and Japan (newbuilds arrive with a roughly two-year lag)
- Greek, Chinese, and Japanese shipowners (the largest ownership blocs)
- The shadow or dark fleet, roughly a fifth of crude tankers, carrying sanctioned Russian and Iranian crude
The dark fleet is the defining post-2022 structural change: older tankers bought up to move sanctioned barrels, operating outside mainstream insurance and class, which removes effective tonnage from the compliant market and tightens rates for everyone else. Effective supply is also elastic through slow steaming, port and chokepoint congestion, and rerouting.
Top consumers
- China (the dominant crude importer and the heart of the TD3C trade)
- India (a fast-growing importer, a major buyer of discounted Russian crude since 2022)
- Europe (long-haul imports rerouted away from Russian pipeline and seaborne barrels)
- United States Gulf crude exports to Asia and Europe (a long-haul tonne-mile generator)
- Refiners across Asia drawing Middle East Gulf barrels
Major uses
- Seaborne crude oil transport (the entire purpose of the fleet)
- Floating storage during contango (VLCCs hired to hold barrels at sea)
- Condensate and heavy-crude movements on dedicated vessels
Tonne-miles, cargo volume multiplied by distance, are the true demand unit. The 2022 rerouting of Russian crude to India and China and of US barrels to Asia lengthened average voyages, lifting tonne-mile demand even where barrel volumes were flat.
What Moves the Price
- Seaborne crude trade volumes, above all Chinese and Indian import demand
- Voyage length and rerouting: the 2022 Russian-crude redirection to Asia lengthened tonne-miles
- OPEC+ production decisions, which set the volume of barrels needing transport
- The shadow or dark fleet, which removes compliant tonnage and tightens the mainstream market
- Floating-storage economics: a steep contango pulls VLCCs out of trade to hold barrels at sea
- Newbuild deliveries versus scrapping, and the aging of the fleet
- Chokepoint risk: Strait of Hormuz, Bab el-Mandeb and the Red Sea, Suez, the Malacca Strait
- Bunker fuel prices, which feed voyage cost and the slow-steaming decision
Moments That Made the Market
1973
The first oil shock drives crude tanker rates to record highs before the mid-1970s tanker glut and slump.
2004
Surging Chinese crude imports send VLCC rates spiking as Asian demand outruns the fleet.
2008
VLCC earnings reach extraordinary highs in mid-2008 before the financial crisis collapses oil trade and rates.
2020
A historic contango during the pandemic demand crash sends traders chasing VLCCs for floating storage; daily earnings briefly clear $200,000.
2022
Russia's invasion of Ukraine reroutes Russian crude toward Asia, lengthening voyages and spawning the shadow fleet.
2024
Red Sea attacks reroute tankers around the Cape of Good Hope, adding distance and tightening effective supply.
2025
The dark fleet grows to roughly a fifth of crude tankers as sanctions enforcement and price-cap evasion deepen the two-tier market.
What Changed Since the 2010 Handbook Era
- The dark fleet became a structural feature: roughly a fifth of crude tankers now move sanctioned Russian and Iranian barrels outside Western insurance.
- Trade routes lengthened after 2022 as Russian crude went east and US crude went far, lifting tonne-mile demand even with flat barrel volumes.
- Floating storage proved its power in 2020, when contango alone could absorb a large slice of the VLCC fleet overnight.
- Chokepoint risk returned to the centre of the market: Hormuz, the Red Sea, and Suez now move rates on headlines.
- A two-tier market emerged, with compliant tonnage commanding a premium over dark-fleet capacity.