Damstrait · compiled 2026-07-16 · refreshed

Oil & the Two Wars

How the Russia–Ukraine war and the 2026 US/Israel–Iran war reshaped oil flows, prices, and buffers. Every figure links to its source; hover any chart for as-of dates and provenance.

observed (traces to a primary data series) · third-party estimate (provider named) · scenario / forecast

Thesis: one war reroutes oil, the other removes it — and the shock absorbers are now spent

Four years of sanctions never took Russia's barrels off the water — they bent them east. Three months of a closed strait took 12.4 mb/d off the market, sent Brent from $71 to $138, and drained the buffers that are supposed to cushion round two. The board below is the whole report in one view — every part of it opens the tab that proves it.

The world oil machine, as it runs today ribbon widths ∝ mb/d · as of

Swipe the board sideways to follow each lane to its destination.

WORLD TOTAL LIQUIDS SUPPLY — THE DENOMINATOR BELOW the largest supply disruption on record — the lanes below are the gates that did it → Supply & infrastructure US/ISRAEL–IRAN · 2026 — THE WAR THAT REMOVES STRAIT OF HORMUZ shut Feb 28 – Jun 17 · truce collapsed Jul 8 · re-blockaded Jul 13 Gulf export capacity 16.5 mb/d · eight producers Asia escorted still moving ≈5.6 mb/d — convoys ≈4.3 through the strait + ADCOP 1.8, the one pipe that lands outside it (Fujairah) → Scenarios · corridor explorer ≈10.9 mb/d idle behind the strait two-thirds of Gulf export capacity, held behind one strait → Reserves & buffers — what covered it ALSO BEHIND THE GATE — NO PIPELINE OUT, AT ANY PRICE LNG · 19–20% of world helium · ⅓ of world urea · ⅓ of trade cracker feedstock · Asia → Beyond crude · the bypass ledger RED SEA · SINCE JUL 20 — THE BACK DOOR, SHUT BEHIND IT RED SEA BLOCKADE — HOUTHI REACH Petroline → Yanbu ≈2.6 mb/d — the crude that dodged Hormuz → Bab el-Mandeb · SUMED → Europe — not arriving the corridors were priced as independent; since Jul 20 both are hit at once — closing both costs more than closing each → Scenarios · both corridors RUSSIA–UKRAINE · YEAR 5 — THE WAR THAT REROUTES pre-war route: Europe — embargoed ’22–23 SANCTIONS WALL Russian seaborne crude ≈4.2 mb/d — as much as pre-war India · China · Turkey the new customers → Prices & futures cap $60→$44 · EU embargo · OFAC — leaks by design: the cap taxes revenue, not volume 194 drone strikes → ~33% of refining offline → Russia ships more crude, less product scarcity even put Urals at a premium to Brent (Apr–May) — the cap suspended in practice

The pricePrices

The spike broke on the expectation of reopening — Brent fell 21% before the truce was even signed. It repriced to the $90s when the truce died.

The buffersReserves

US SPR · Mb · -yr low
Endurance, round 2~13 mo · was 19.5

The largest-ever IEA release bought four months; the SPR gave up Mb from its Mb February level. Round two starts with the cushion two-thirds gone — same shock, bigger price.

The forkScenarios

bypasses destroyed · blockade persists · frozen conflict · $80s recovery · back toward $70

The dot is today — Red Sea impaired, the fifth state on the ribbon above. The market prices ~25% odds the disruption persists; the strip sits $11 over the official forecast.

Moving / still supplied Not moving / not supplied Route closed Gate — a strait or a sanctions wall widths ∝ mb/d, one scale throughout — the same encoding as the corridor explorer

The full thesis, with every link

The Russia–Ukraine war is a grinding attrition campaign that reroutes and degrades supply without removing much crude from the market: four years of sanctions, price caps, and ~194 drone strikes on refineries in H1 2026 alone have hollowed out Russian refining (~a third offline per trackers; Kyiv claims more) and forced Russia to export more crude, not less. The 2026 US/Israel–Iran war did what sanctions never could: the Strait of Hormuz closure (de facto Feb 28, declared Mar 2–4, until Jun 17; ~20 mb/d of total oil transit incl. products cut to a trickle — plus 19–20% of world LNG, a third of world helium, roughly a third of traded urea and the light ends behind Asia's crackers, none of which has a pipeline out: the bypass ledger) was, per the IEA, the largest supply disruption in the history of the global oil marketworld supply fell from 106.9 to 94.5 mb/d in three months, Brent went from $71 to $138, and the largest-ever coordinated stock release could replace barely a sixth of the lost barrels. Prices broke on the expectation of reopening: Brent fell 21% in the two weeks before the June 17 memorandum was signed (Jun 3 $101.69 → Jun 17 $80.33), then a further 13% after — the market priced the deal before the signatures. That truce collapsed on July 8, with the buffers that cushioned round one now substantially depleted.

$71 → $138 → $92: Brent & WTI through the war (USD/bbl)

Table view (monthly averages)
MonthBrent avgBrent rangeWTI avg

FRED daily spot (DCOILBRENTEU / DCOILWTICO), refreshed 2026-07-24; the series lags a few business days (last print Jul 27, $91.82). FRED has now caught up past the press front-month quotes this section previously relied on: the second leg peaked at $105.32 on Jul 23 before giving back $13.50. Goldman warns $120+ if disruption persists. Shaded bands = war phases; numbered markers = the events tabulated on the Prices & futures tab.

Seven syntheses

  1. Chokepoints beat sanctions. Four years of Russia sanctions moved prices less than four weeks of Hormuz closure — scarcity even put Urals at a premium to Brent. See the benchmark differentials
  2. Reserves are a bridge, not a fix. The largest-ever IEA collective action covered the resulting stock draw for ~4 months; the bill is an SPR at a 43-year low as hostilities resume. See the drawdown and what refills it
  3. The market prices persistence; forecasts price peace. The Jul-16 strip sat ≈$11 over EIA's base case — one-in-four odds of persistence against Goldman's $115 severe case. See the probability arithmetic
  4. The barrel's quality mix broke before its quantity did. Hormuz locked in medium/heavy sour and light sweet replaced it — Dubai "effectively broke," and products ran tighter than crude everywhere. See the grade mix
  5. Demand destruction, not substitution, balanced the market. IEA sees 2026 demand −1.0 mb/d (Jul OMR) — while war-priced LNG pushes demand toward oil, not away. See where the barrels went
  6. Recovery time is set by politics, not engineering. Terminals heal in days, refineries in weeks-to-months, LNG trains in years — but Hormuz transit has no engineering timeline. See the outage timeline
  7. The buffer that got the policy was already the deep one. Oil holds 396 days of OECD cover; Bahrain's stated water reserve is four — and Gulf desalination is gas-fired, so the same shock is its input cost. See the Lifelines tab
The full arguments
  1. Chokepoints beat sanctions. Four years of Russia sanctions moved prices less than four weeks of Hormuz closure. The 2026 shock even suspended the sanctions architecture in practice: Urals traded at a $7–8 premium to Brent in April–May (vs the EU's $44.10 cap), the US waived restrictions on India's purchases, and Russian March export revenue nearly doubled to ~$19bn. Scarcity trumps enforcement whenever both bind at once.
  2. Reserves are a bridge, not a fix. The largest-ever IEA collective action (400 Mb, ~1.2–2.1 mb/d deliverable) faced a 12.8–14.4 mb/d Gulf supply loss; Brent rose 17% in the days after the announcement (press figure; FRED-computable: +14.9% over three sessions). What broke the spike was the prospect of reopening, not the barrels — two-thirds of the June collapse (−21%) came in the two weeks before the memorandum was signed. The releases did their real job — covering the realized stock draw for ~4 months — but the cost is visible now: SPR at a 43-year low, OECD government stocks at a 35-year low, just as hostilities resume.
  3. The market prices persistence; official forecasts price peace. The futures curve never panicked at the back (Dec-27 held near $78 even with cash at $106+) but the front strip (~$85 Sep / ~$81 Dec) sits ≈$11 above EIA's post-truce base case on matched months ($84.84 vs $74.03 Q3; $81.35 vs $70.00 Q4). Read as a two-state mixture against Goldman's $115 severe case, that gap implies roughly a one-in-four market-implied probability that the disruption persists (the arithmetic). Scenario bounds: ~$40 durable peace, $115–150+ severe escalation.
  4. The barrel's quality mix broke before its quantity did. What Hormuz locked in was overwhelmingly medium/heavy sour (Basrah, Kuwait Export, Arab Medium/Heavy, Upper Zakum — the bypass pipelines carry only lighter grades); what replaced it was light sweet (record US/Brazil/Guyana output) plus sour SPR barrels. Result: the Dubai benchmark "effectively broke," Urals' discount collapsed to $2–3 — and products were tighter than crude everywhere, because refining was hit on both fronts (Russia by drones, the Gulf and Iran by missiles). The deeper reason products ran tighter is that the pipelines were built for crude: 23–37% of Hormuz crude had a paper route out, and events showed 21–30% deliverable, while the Gulf's entire light-ends bypass is one 300 kb/d NGL line the IEA calls "fully utilised" (every cargo, ranked).
  5. Demand destruction, not substitution, balanced the market. IEA sees 2026 oil demand −1.0 mb/d (Jul OMR) — the first drop since 2020 — while war-priced LNG (TTF +32%, JKM +45% y/y) is currently pushing demand toward oil (realized gas-to-oil switching ~0.1–0.3 mb/d, author estimate; the oft-quoted ~1 mb/d is Energy Intelligence's Sep-2022 ceiling) and coal, not away. Durable displacement (~1.7 mb/d avoided via EVs) is structural and mostly pre-dates the wars; the cheap-LNG-displaces-oil thesis is deferred to 2027–28 and hostage to Hormuz and Ras Laffan's 3–5-year repair.
  6. The buffer that got the policy was already the deep one. The OECD entered this war with about 13 months of oil cover — 396 days — and the institutional apparatus to defend it: an SPR, an IEA collective-action mechanism, coordination across thirty-odd countries. The states doing the fighting hold their drinking water on a different clock entirely. Bahrain publishes a four-day reserve, Abu Dhabi four, Saudi Arabia five to six, and the UAE plans on two days of normal consumption; Qatar's own figures disagree by an order of magnitude and it has not reconciled them. There is no IEA for water. The coupling makes it worse rather than better: roughly three-quarters of GCC desalination is cogeneration bolted to a gas-fired power plant, so the LNG premium on the fuel-divergence chart is the marginal cost of Gulf municipal water. This war also shot at that fleet — nine documented strikes on water infrastructure, four in Kuwait, plus the first confirmed kinetic attack on a hyperscale cloud provider. On 17 July an attack on a water plant closed Brent 4.6% higher, which is the whole argument in one print (the Lifelines tab).
  7. Recovery time is set by politics, not engineering. The repair hierarchy is consistent: export terminals recover in days-to-weeks, refineries in weeks-to-months (open-ended under Ukraine's 2–3-week re-strike cadence and parts sanctions), LNG trains in years (Ras Laffan: 3–5). But the single biggest variable — Hormuz transit — has no engineering timeline at all; both sides deliberately spared Kharg Island's export plumbing, keeping the off-ramp intact. The binding constraint on world oil supply in H2 2026 is a negotiation, not a repair schedule.

What to watch — which case is materializing?

Green zone = recovery-case readings, amber = in between, red = risk-case; thresholds are author-set, and each tile links its source. Where a public series is already on this page the tile draws its recent path through the zones (Brent daily, SPR and Cushing weekly, Urals monthly); otherwise a level line marks the latest print.

Where this goes

The fork: the base case (EIA, de-escalation-conditioned) glides back toward $70 and the deferred glut once the risk premium unwinds; the risk case (scenario A) sends winter product markets into a depleted buffer — ~13 months of endurance now vs ~19.5 in February, so the same shock produces a bigger price response. All four futures are quantified on the Scenarios tab, including a 24-month chapter-by-chapter timeline; the watch panel above tracks which is materializing.

H2 2026–2027: the market vs the forecasters (Brent, USD/bbl)

The ≈$11 strip-vs-EIA gap is the market's persistence pricing; bounds are analyst quotes (Goldman severe $115; Fink $40 / $150+). The gray dashed vintages — $58 (Feb) and $96 (Apr, the day of the peak) — are regime-chasing, not conservative.

Methodology & caveats (paths, vintages)

Actuals: FRED daily. EIA path: STEO July 7 vintage quarterly midpoints ($74.03 Q3 / $70.00 Q4 / $67.63 Q1-27 / $61.97 Q4-27) — assumes de-escalation, pre-dates the July 8 collapse. Strip: Barchart settlements Jul 16 (Dec-27 point is a May 15 vintage). Each STEO vintage extrapolated the regime it was published in — too low before the war, too high at the peak, and, if the strip's +$11 is right, too low again now. The full five-vintage history is keyed, with a source per vintage, in the chart data.