Refinery Capacity As a Wartime Ledger: The Accounting of Ukraine's Deep Strikes

01 The Claim and the Ledger

AP reported that Ukraine says it damaged two additional Russian oil refineries, in a statement from Kyiv that — as with all such claims — should be read as attributed, not independently verified. The claim matters less for its individual blast radius than for what it represents: a campaign that has been running since early 2024 and has now made refinery capacity a standing, measurable component of the war. This piece is the capacity-accounting view of that campaign — running tallies of crude runs taken offline, the economics of repair versus bypass, and what it means that a country's refining complex is now inside a drone's combat radius.

A refinery, as the Wikipedia extract puts it, is a production facility composed of chemical-engineering unit processes refining raw material into products of value. The definition is dry, but its military significance is not: those unit processes are long-lead capital equipment, mostly designed and serviced by Western engineering firms since the Soviet era, and each has a distinct repair clock. Hitting a tank farm makes a mess; hitting a catalytic cracker makes a calendar. Ukraine's strike selection, per the pattern of the past two years, has migrated toward the units with the longest repair clocks — which is why the capacity accounting below cannot simply be a damage tally. It has to be a time-weighted ledger.

This piece is deliberately distinct from strike-by-strike refinery reporting: the question is not which facility burned last night, but what the cumulative, time-weighted arithmetic of the campaign does to Russian fuel balances, export revenue, and the war economy's logistics.

02 How to Account for Capacity Loss

Refinery capacity is commonly miscounted in wartime, and three distinctions keep the ledger honest. The first is nameplate versus utilization: Russian primary distillation capacity is on the order of six to seven million barrels per day, but crude runs have typically run below nameplate. Strikes that knock out slack capacity cost less than strikes against units running full. The second is disrupted versus lost: a hydrotreater down for four months is disrupted capacity; the same unit, if repair requires an OEM part under sanctions, drifts toward lost capacity. The third is complexity-weighted: primary distillation is hard to substitute, but some product yield can be re-optimized around a damaged unit, letting a refinery limp at partial slate while formally repaired.

With those distinctions set, the illustrative ledger above can be read correctly. The cumulative disrupted capacity figures — roughly 0.8 million barrels per day in 2024, growing to nearly 2 million by 2026 in this reconstruction — overstate permanent loss, because most struck units restart. But the crude-run trajectory understates the pressure, because it nets out repair successes against new strikes; the net trend is what the Russian fuel system experiences. Both series in this piece are labeled illustrative: precise, current, verified per-facility outages are not publicly available, and even commercial trackers rely on satellite imagery, customs data, and declared outages, each with its own lag.

It is worth being precise about what the two-refinery claim can and cannot mean. Ukrainian strike claims against refineries have historically been directionally reliable — satellite imagery has, in most documented cases of the past two years, confirmed fires or damage at named facilities — but the severity is where claims diverge from reality. A fire in a utility area produces a smoke plume and a claim; a fire in a crude distillation unit produces weeks or months of outage. The verification lag between claim and independently assessed outage runs from days to months, and commercial data providers that track refinery outages rely on a mix of thermal imaging, shipping data, and product flows to close the gap. For the running ledger, the honest practice is to book the claim at its reported face value and mark its severity as unverified until the outage shows up in throughput statistics.

There is also a definitional trap in the word refinery itself. A large Russian complex is a small city of interdependent units; a small regional plant is a single train of equipment. Claims that name a complex do not specify which units were affected, and two strikes on the same named facility can differ by an order of magnitude in capacity impact. The public conversation counts facilities; the ledger counts barrels and days. This piece deliberately avoids facility-by-facility tallies for that reason — the analytically meaningful aggregate is time-weighted, complexity-adjusted barrels offline, not the number of names on a list.

03 The Campaign's Shape: From Tanks to Catalytic Units

The campaign's targeting evolution is well documented in the pattern of reported strikes. Early 2024 strikes, beginning with the attacks on facilities in the Volga and southern regions, hit what was reachable and flammable — storage tanks, loading racks, utility systems. Damage was spectacular, footage was voluminous, and capacity impact was modest: tanks are the cheapest, fastest component of a refinery to replace. Through late 2024 and 2025 the targeting visibly shifted toward primary and secondary processing units — the distillation columns, reformers, and crackers whose damage takes the facility off line in whole or in part. The two-refinery claim reported by AP sits at the mature end of this curve, where each additional strike compounds against repairs already in progress elsewhere.

The campaign also has a geographic logic. Strikes initially concentrated within several hundred kilometers of the front, then stretched to the Volga basin complexes as Ukrainian drones gained reach — a distance Ukraine's defense intelligence has repeatedly demonstrated against facilities previously considered safe, including the deep-interior refinery strikes of 2024-2025. Each range extension re-prices the security of the next tranche of Russian fuel infrastructure. The deep rear, in the vocabulary of military logistics, has simply stopped existing as a rear. Russia's response has been a passive-defense buildout — physical barriers, electronic-warship-style jamming towers, and point-defense guns at major sites — whose coverage is incomplete and whose cost per site is nontrivial. When passive defense costs more than the drone it stops, the exchange favors the offense even when the defense works.

04 Repair Versus Bypass: The Economics of Recovery

Russia has, in practice, two recovery strategies, and their economics are the campaign's second battlefield. The repair strategy rebuilds damaged units, with the binding constraint being components: distillation column internals, compressor trains, distributed-control systems, and licensed-process catalysts historically sourced from Western OEMs. Sanctions do not make these impossible to obtain — parallel imports through third countries and domestic substitutes exist — but they stretch timelines and raise failure risk. The repair-timeline chart above is illustrative, but its rank ordering is well founded: tank farms and piping recover in weeks; atmospheric distillation sections in months; catalytic cracking units, with their specialized metallurgy and rotating equipment, can approach two years when OEM access is constrained. Russia's refining-industry engineering base, inherited from Soviet times, is competent at civil-repair scopes and weaker on complex process-equipment replacement.

The bypass strategy avoids repairs entirely by routing product demand around the damage: raising imports of finished gasoline, re-routing crude to undamaged refineries, exporting more crude instead of products, and drawing from state reserve stocks. The bypass strategy's ceiling is economic. Crude exports earn less per barrel than product exports, so bypass converts refinery downtime directly into export-value loss; and domestic shortfalls, as Russia experienced during its 2025 gasoline export ban episodes, must be filled from abroad at premium prices. The campaign's design goal — visible in strike cadence — is to push Russia past the point where bypass is cheaper than repair, forcing capital expenditure that competes with the war budget for engineering labor and hard currency.

The accounting also has to be read against seasonal demand, which war has not abolished. Russian domestic fuel demand peaks in summer driving season and in the agricultural cycle, and heating-fuel demand peaks in winter. A refinery knocked out in March costs more than one knocked out in November, because the outage window overlaps peak demand and the repair window competes with it. The campaign's cadence since 2024 shows awareness of this: strike tempo has tended to pick up in the run-up to peak refining and export seasons, forcing repairs to be compressed against deadlines set by demand rather than by engineering. This is capacity accounting with a calendar attached, and it is why a strike's value cannot be measured in barrels alone.

05 What the Ledger Does to the Russian Fuel System

The domestic consequences are visible in the Russian government's own behavior rather than in any single strike claim: temporary gasoline export bans, producer-stock release mechanisms, price-cap adjustments for domestic producers, and allocation of refining throughputs by decree. These are the instruments of a managed shortage, and their persistence across 2025-2026 signals a system that is balancing on a thinner margin than nameplate capacity suggests. Diesel and gasoil are the most sensitive products — the war economy's own fuel — and their price response in this illustrative chart is deliberately modest, because the Russian state absorbs refinery-margin damage through export-duty and price-control instruments before it reaches the pump. The cost is real regardless of where it is booked: in producer margins, in budget transfers, or in reduced product exports.

Export revenue is where the ledger bites hardest. Product exports — diesel above all — are among Russia's largest foreign-exchange earners per tonne shipped. Every barrel of crude that cannot be refined and must be exported as crude is a haircut on export value; every refining day lost is a haircut on volume as well. Ukraine cannot collapse Russian refining with drones alone, and no serious analyst claims it can. But the campaign's arithmetic does not require collapse: it requires a persistent gap between disruption and repair that compounds at the margin, and that gap has been widening since the first quarter of 2024.

The labor constraint deserves separate accounting, because it may bind before components do. Restarting and repairing refinery units requires certified welders, rotating-equipment specialists, instrumentation engineers, and safety supervisors — trades that are also being conscripted, paid away by defense industries, or exhausted by surge schedules. Russian refining has historically depended on shift systems with limited redundancy, and a sector running continuous repair campaigns at dozens of sites simultaneously draws on the same national pool of specialists. Queuing theory applies: when repair demand exceeds specialist supply, projects serialize, and the average outage lengthens even with no change in physical damage. This is how a strike campaign imposes cost on facilities it never touches — every repair queue ahead of you is damage you did not receive but still pay for.

06 Second- and Third-Order Effects

The second-order effects extend past the fuel system. Insurance and reinsurance for Russian refining and export infrastructure has tightened since 2024, raising the cost of capital across the sector. Engineering labor has become a contested internal allocation, with repair crews competing against military construction for scarce skilled trades. Rail logistics have re-optimized to move product from undamaged refineries into deficit regions, consuming rolling-stock capacity that also serves military logistics. And the campaign's optics — burning refineries visible in domestic Russian media and satellite imagery — perform a strategic-communication function that Kyiv explicitly values: proof that the war reaches Russia's economic core.

Third-order, the campaign influences global product markets, which is the subject of the contagion analysis elsewhere in this publication's coverage: Russian diesel exports feed European and wider Atlantic-basin balances, and every sustained outage tightens a distillate market already disrupted by Middle East conflict risk. The refinery war is not self-contained; it clears through prices in Rotterdam, Singapore, and the developing world's import bills. That transmission is examined in the companion piece on diesel contagion and is noted here only as a boundary of the refinery ledger itself.

The counterfactual clarifies the stakes. Had Russia's refining complex stayed outside drone range, the war's economic front would be a sanctions story alone: import controls, price caps, and substitution, all gradual. The refinery campaign added a physical front to that economic war, with a feedback loop sanctions cannot replicate — every strike converts economic pressure into immediate engineering cost, and every repair consumes capacity that sanctions merely tax. Sanctions are a chronic condition; strikes are an acute one, and the combination is more than the sum of its parts.

A final note on the accounting asymmetry between the two economies: Ukraine's own fuel system is far smaller and was itself a refining economy before 2022 — its two major refineries were destroyed or captured early in the war, and Ukraine now imports most refined product, arriving through solidarity lanes from the European Union. Russia's refining complex is large enough to absorb the campaign; Ukraine's cannot absorb anything comparable because it already absorbed it. This is why the refinery war is structurally offensive: Ukraine strikes capacity because Russia has it, and Russia strikes Ukrainian energy because fuel, power, and heat are the remaining soft targets of an already-dismantled industrial base. The ledger runs in one direction, and both sides know it — which is precisely why Kyiv has offered, as AP separately reported, to halt refinery strikes in exchange for a Russian halt to energy strikes. The offer prices the ledger explicitly, and the negotiation architecture around it is the subject of the companion analysis on the energy truce.

07 Scenarios: How the Ledger Evolves

Stabilization. Strike tempo plateaus at current levels; Russian repair and bypass keep net crude runs near the current trend; the campaign becomes a permanent tax rather than a compounding loss. Triggers: Ukrainian drone production redirected to front-line priorities, or Russian point-defense deployment at refineries proving effective. Indicators: reported strike frequency against refineries versus other target classes; Russian gasoline export ban episodes becoming rarer.

Persistence. The current base case: two to four refinery-claim events per month, repair timelines lengthening under component constraints, net capacity drifting down at a few percent per quarter. The war economy absorbs the loss but the tax compounds. Triggers: continued Ukrainian long-range drone output growth; no step-change in Russian passive defenses. Indicators: the crude-run trend, Russian domestic fuel-price interventions, refinery outages declared as maintenance in Russian statistics.

Escalation. Either a systemic Russian fuel crisis (major export bans, rationing) or a Russian response that widens the exchange — strikes against Ukrainian energy with the explicit goal of collapsing the drone-production base that feeds the refinery campaign. Triggers: a strike season that takes out two or more major complexes simultaneously; Russian counter-campaign against Ukrainian drone assembly. Indicators: sudden clusters of multi-facility strikes, emergency Russian fuel-import announcements, evidence of state-directed rationing.

08 Bottom Line

What we know: Kyiv says it damaged two more refineries (AP, attributed). The campaign has run for over two years, has visibly shifted toward processing units, and has elicited managed-shortage responses from the Russian state.

What we think we know: Disrupted capacity substantially exceeds permanent loss, but the time-weighted gap between disruption and repair has been widening since early 2024, and the campaign imposes a real and growing tax on Russian export value and domestic fuel management. All quantitative series here are illustrative reconstructions, labeled as such.

What we do not know: Verified current outages by facility; actual repair costs versus Russian public claims; how much bypass capacity remains unused. The ledger's biggest unknown is Russian component-sourcing resilience — sanctions evasion statistics are, by design, not published.

Watch next: Russian declared-outage statistics under the maintenance rubric, export-duty adjustments on fuel products, any lengthening of the interval between strike claims and facility restarts, and the next round of range-extension strikes that re-price previously safe complexes. In refinery warfare, the ledger is the weapon.