Summary
Eurobob Oxy (E5) NWE fell 15.3% open to close, from $1,246/MT to $1,056/MT, and averaged $1,161/MT (-8.0% MoM). The real damage was to the margin: the E5 crack compressed from $47.84/bbl to $9.11/bbl. Diesel remained in high demand, and E5 vs ULSD widened to -$460/MT, keeping refiner economics pointed at distillate. The G7 reserve release on 2 Oct opened the slide, and the physical premium to swaps collapsed from $148/MT to $7/MT. The curve shows back repricing: M1 fell $49.75/MT while M6 and M12 rose about $50/MT, unwinding M1-M6 from +$126.75 to +$25.00/MT as the summer premium left the front. Increased exports to the Caribbean and South America pushed ARA gasoline stocks to their lowest since September 2021 (Insights Global) and RBOB-E5 flipped to +$94/MT before freight, which keeps the prompt backwardated; whether that export pull holds is November's test.
Market activity
Trade count fell 24% as Exxon selling halved; Totsa flipped from seller to the dominant E5 buyer
- 167 executed Eurobob trades vs 220 in September; E5 fell from 129 to 102 and E10 from 91 to 65
- Producer flow: Exxon's sell-side trades fell from 102 to 49. Refiner length offered into the window halved, consistent with weak margins curbing gasoline output.
- Intermediary positioning: Totsa went from 35 E10 sales in September to 66 buys in October (63 on E5). A trading arm switching sides in one month reads as a view or an arb position, not flow, and it coincides with the westbound arb improving.
- Gunvor, September's top E5 buyer with 58 trades, left the October top five
- Varo bought 39 E10 barges while selling 31 E5: two-way activity across grades, read as grade positioning, not direction
Price action
E5 -8.0% MoM; the slide ran from the 12 Oct high, and the losses sat in the crack
- Opened $1,246.25/MT (1 Oct), closed $1,055.50/MT (30 Oct); average $1,160.73/MT vs $1,261.64/MT in September (-8.00% MoM), +70.26% YoY vs $681.75/MT
- High $1,305.75/MT (12 Oct), low $1,041.75/MT (29 Oct); range $264.00/MT, 1.5x September's $172.50/MT
- 2 Oct: E5 fell $53.50/MT to $1,192.75/MT after the G7 reserve release; the market rebuilt to the 12 Oct high before breaking
- The largest single-day move was -$75.25/MT on 13 Oct (from $1,305.75 to $1,230.50). It started three straight weekly declines: W3 -2.22%, W4 -6.39%, W5 -4.98%.
- The close sat $13.75/MT above the monthly low with no W5 bounce, so the market had not found a floor by month end
| Week | Avg Price | WoW Change | Key Event |
|---|---|---|---|
| W1 (1–2 Oct) | 1,219.50 | - | G7 reserve release |
| W2 (5–9 Oct) | 1,227.70 | +0.67% | Rebuild toward highs |
| W3 (12–16 Oct) | 1,200.40 | -2.22% | High, then -75.25 day |
| W4 (19–23 Oct) | 1,123.65 | -6.39% | ARA stocks 2021 low |
| W5 (26–30 Oct) | 1,067.65 | -4.98% | Monthly low 1,041.75 |
Source: GX Go
Cross-market dynamics
E5 crack compressed $38.73/bbl and diesel's pull widened E5-ULSD to -$459.50/MT; the physical premium to swaps evaporated
- E5 vs Brent crack fell from $47.84/bbl (open) to $9.11/bbl (close), averaging $31.28/bbl vs $49.26/bbl in September: crack compression, with gasoline selling off while the crude leg held
- E5 vs ULSD averaged -$313.84/MT vs -$236.41/MT and closed at -$459.50/MT (from -$225.25/MT). With diesel in high demand, the yield incentive stays on distillate and gasoline becomes the residual barrel.
- E5 vs swaps fell from $148.00/MT to $7.00/MT, and E10 vs swaps from $104.75/MT to $8.00/MT; the physical premium over paper all but disappeared from the window
- E10 vs E5 moved from -$43.25/MT to +$1.00/MT, so E5 lost its oxygenate premium by month end
- Reformate 103 averaged +$184.09/MT vs +$139.73/MT, peaking at +$230/MT, but closed at +$95/MT; the alkylate ratio fell from 1.43 to 1.31. Octane value spiked, then repriced lower into the winter grade.
Cross-regional dynamics
RBOB-E5 swung $166/MT to a premium before freight, and Singapore 92 reached parity; Med tracked North
- RBOB vs E5 (converted at 8.5 bbl/MT, before freight) moved from -$72.51/MT to +$93.57/MT, averaging -$30.48/MT vs -$87.54/MT. Westbound economics improved as ARA exports, including to the US and West Africa, drew independent ARA gasoline stocks to their lowest since September 2021, according to Insights Global data.
- Singapore 92 vs E5 averaged -$0.01/bbl vs -$15.16/bbl, peaking at +$13.86/bbl; East-of-Suez is no longer priced out before freight
- The Med crack's premium to the E5 crack held at +$4.12/bbl vs +$4.37/bbl; the Med crack fell from $53.45/bbl to $13.73/bbl, so the pinch was not in the south
- Cheaper E5 opened two export outlets at once; that relative cheapness, not NWE demand, is what drew down ARA
Curve structure
Back repricing: M1 fell $49.75/MT while M6 and M12 rose about $50/MT; M1-M6 collapsed from +$126.75 to +$25.00
| Spread | Month-Start | Month-End | Change |
|---|---|---|---|
| M1-M2 | +81.50 | +28.75 | -52.75 |
| M1-M6 | +126.75 | +25.00 | -101.75 |
| M1-M12 | +280.00 | +182.25 | -97.75 |
Source: GX Go
- Back repricing, with the backwardation unwinding from the front: M1 went from $1,098.25 to $1,048.50/MT while M2 rose $3.00/MT, M6 $52.00/MT and M12 $48.00/MT
- The end of driving season and the winter-grade switch stripped the summer premium from M1, while the deferred months rose with crude
- M1-M2 held at +$28.75/MT; with ARA stocks this low the prompt keeps a bid, so this is not yet a front collapse
- M1-M6 near flat lowers the cost of carrying length forward, and deferred hedges now sit about $50/MT higher
Price volatility
E5 CV rose to 6.39%, 1.6x September's 3.96%; volatility returned to its May-August band rather than breaking out
| CV (%) | May-26 | Jun-26 | Jul-26 | Aug-26 | Sep-26 | Oct-26 |
|---|---|---|---|---|---|---|
| Eurobob Oxy (E5) NWE | 6.17 | 5.06 | 6.59 | 7.24 | 3.96 | 6.39 |
| Eurobob Non-Oxy (E10) NWE | 6.20 | 5.08 | 5.90 | 7.03 | 3.87 | 6.07 |
Source: GX Go
- E5 CV of 6.39% sits inside the 5.06% to 7.24% band of May to August; September was the outlier
- E10 CV of 6.07% is below E5, consistent with E5-specific selling as the Oxy grade lost its premium to E10
- Risk models calibrated on September's sub-4% CV understate current risk by 1.6x
Something to watch
- RBOB-E5 as the export-clearing gauge:
- Observation: RBOB vs E5 closed at +$93.57/MT before freight, from -$72.51/MT at the open
- Why it matters: holding above freight keeps the westbound pull draining ARA from 707kt; a fade below freight removes the prop under the prompt
- What to monitor: weekly RBOB-E5 close against transatlantic freight; EIA US gasoline stocks (Wednesdays); Insights Global ARA stocks (Thursdays)
- E5 M1-M2 as the front-collapse trigger:
- Observation: M1-M2 at +$28.75/MT, down from +$81.50/MT
- Why it matters: narrowing toward zero completes a front collapse into the winter grade; re-widening alongside ARA draws signals the export pull is dominating
- What to monitor: daily M1-M2 close; weekly M1-M6
- E5 crack vs ULSD as the yield signal:
- Observation: E5 crack at $9.11/bbl, E5 vs ULSD at -$459.50/MT
- Why it matters: sustained diesel demand keeps refiners maximising distillate and leaves gasoline length to compress the crack further; easing diesel demand reverses it
- What to monitor: weekly E5 vs Brent and E5 vs ULSD closes
Note: All figures, prices and market activity referenced in this report are based on the period covered by this monthly update.

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