The Forced Crude Diversion: A Paired Trade on Russian Refining

RUSSIAN CRUDE is being forced onto world markets at the same time as the products that refineries make from it are becoming scarcer. The divergence is not a coincidence. It is the direct result of Ukraine's campaign of long-range drone strikes against Russian oil-processing infrastructure, which has cut the country's refinery throughput to its lowest in a generation. The mechanism creates a structural opportunity for commodity investors: a paired trade that is long the products that are growing tighter and short the crude that is growing more abundant.

Start with the supply-side disruption. Russian refineries processed an estimated 3.6m barrels per day (b/d) in July, the lowest in more than two decades. The cumulative effect has been devastating. Facilities with a combined annual capacity of 45m tonnes—roughly 900,000 b/d—remain offline, reports Reuters. Slightly less than half of the damaged capacity has been restored through emergency repairs.

Oil that cannot be processed must go elsewhere. The displaced crude has flowed to export markets. Shipments from Russia's western ports—Primorsk, Ust-Luga and Novorossiysk—are set to increase 4% in August from July, according to traders. In June those ports loaded a record 2.7m–2.8m b/d. The dynamic is visible in the discount that Russian crude commands. Since then it has narrowed to $1–2 a barrel for Indian deliveries, but that compression reflects renewed Strait of Hormuz disruptions, not the healing of Russian refineries.

This mechanism is structurally distinct from the discounts that characterised the 2022–23 period. After the full-scale invasion of Ukraine, the Urals discount was a demand-side phenomenon: Western sanctions, price caps and self-sanctioning by buyers made Russian crude toxic to large parts of the market. The discount narrowed when buyers in Asia stepped in. Today's discount is a supply-push phenomenon. Russia has more crude available for export not because demand has fallen but because its own refineries can no longer process it. The discount is therefore less sensitive to changes in sanctions policy and more sensitive to the physical state of industrial infrastructure. It will persist as long as refineries remain damaged.

The other side of the trade is the product market. As Russian refineries have gone offline, the country has been forced to ban exports of gasoline, jet fuel and diesel in succession. Moscow's withdrawal from the global diesel market has compounded supply constraints from the Middle East, where the Iran war took several large refineries offline. The result is a global refining squeeze. The benchmark American 3-2-1 crack spread—the theoretical margin from turning three barrels of crude into two of gasoline and one of diesel—hit a record high in July.

A paired trade that is long products and short Russian crude exposure captures the divergence. The long leg can be refined products futures, crack spreads or the shares of independent refiners that benefit from wide margins. The short leg can be achieved by going short Brent or WTI (which correlate with Urals but are more liquid) or by shorting producers with disproportionate Russian crude exposure. The position is a bet that the structural gap between crude supply and product supply will persist, not a directional bet on the level of oil prices.

The thesis has three clear invalidation points. The first is a recovery in Russian refinery processing above 4.5m b/d, which would indicate that repairs are outpacing the rate of new strikes. At 3.6m b/d, that threshold is still distant. The second is a ceasefire that halts the drone campaign. The third is simultaneous demand destruction that collapses both crude and product markets—a global recession, for instance, which would compress crack spreads even as crude prices fall. The Iran war, perversely, has been a support for the trade so far: it has tightened product markets further while the refinery-strike mechanism has kept Russian crude abundant.

The broader lesson is that Ukraine's drone campaign has created a new kind of disruption in global oil markets. It is not a supply-shock in the traditional sense—total Russian production has not fallen dramatically. It is a reconfiguration of the supply chain, in which crude and products have been decoupled. That decoupling is unlikely to heal quickly. The trade is a bet on the durability of physical damage over political negotiation.