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LPG

August Pricing Analysis - European LPG

European propane fell 2.3% MoM to $528.43/MT while butane rose 2.8% to $595.75/MT in August as an escalating Iran-US conflict lifted the broader energy complex late in the month, flipping propane's forward curve from contango to backwardation (M1-M2 +$7.50) even as the NWE-Middle East spread swung $83.01/MT to a Middle East premium as Gulf and Asian hubs repriced faster.
September 3, 2026
LPG

SUMMARY

European LPG diverged by grade in August: butane rose 2.8% MoM to $595.75/MT while propane slipped 2.3% to $528.43/MT, both surging late in the month as an escalating Iran-US conflict lifted the broader energy complex. Propane's forward curve bull-steepened, flipping from contango (-$6.50 M1-M2) to backwardation (+$7.50) as M1 gained $67.75/MT against M12's $20.00, while butane's curve compressed toward flat (M1-M2 fell to +$1.00) as the back end outpaced the front, a structurally different signal: acute near-term propane scarcity versus sustained but less front-loaded butane tightness. NWE also lost ground regionally, with the NWE-Middle East spread flipping from a +$38.15/MT premium to a -$44.86/MT discount as Gulf and Asian hubs repriced faster. Elevated US LPG imports into NWE (an eight-month high near 591,000t in July, per Kpler) plus new propane-consuming capacity widened the propane-butane discount to -$90.50 by month-end from June's -$36.56 average. Naphtha eased from July's $868.50 peak to close at $760.75, letting butane's naphtha discount tighten to -$96.50, the narrowest in six months.

PRICE ACTION

EU LPG Price Action | General Index
Source: GX Go

CROSS-MARKET DYNAMICS

  • Naphtha (GX0000092) averaged $746.01/MT (+8.8% vs June), easing from July's $868.50 peak to close at $760.75/MT
  • Butane-naphtha spread (GX0011232) narrowed from -$164.39/MT average in July to -$150.26/MT, closing at -$96.50/MT, the tightest in six months
  • Propane-naphtha spread (GX0000736) widened on average (-$217.59 vs -$203.51) but closed narrower (-$187.00 vs -$280.75 in July)
  • Propane's physical-vs-swap premium (GX0000737) averaged just +$0.93/MT, down from +$5.66 in July and +$15.99 in June; it dipped to -$15.00 (12-17 Aug) before rebuilding to +$12.75 as the late-month risk premium rebuilt

CROSS-REGIONAL DYNAMICS

  • NWE-Far East spread widened to -$212.25/MT average from -$150.42/MT in July; Far East propane averaged $745.51/MT (+7.9% MoM) against NWE's -2.3%
  • NWE-Middle East spread flipped from a +$38.15/MT NWE premium in July to a -$44.86/MT Middle East premium, an $83.01/MT swing; Middle East CP averaged $576.00/MT (+14.6% MoM), the fastest-moving hub
  • The narrowest NWE-Far East gap of the month (-$181.00 on 18-Aug) coincided with NWE's sharpest single-day rally, showing NWE catching up intraday despite lagging on average
  • Mechanism: Far East and Middle East pricing outran NWE on Asian demand pull and Aramco CP-linked revisions; the widening arb should, in principle, incentivize US-origin barrels to divert toward Asia and the Gulf if it persists

CURVE STRUCTURE

Propane

EU LPG Curve Structure | General Index
Source: GX Go
  • Bull steepening: M1 gained $67.75/MT (+13.7%) vs M12's $20.00 (+4.5%), a 3.4x front-to-back ratio; the curve flipped from slight contango to full backwardation

Butane

EU LPG Curve Structure | General Index
Source: GX Go
  • Compression: M1-M2 collapsed to near-zero from $9.75; M1-M12 narrowed 27% even as the curve rallied, with M12 gaining more than M1 ($84.75/MT vs $58.00/MT)

PRICE VOLATILITY

EU LPG Price Volatility | General Index
Source: GX Go
  • Naphtha's low August CV masks that most of its volatility (the $868.50 peak) occurred in July, not August
  • Propane and butane sit mid-range, well below the March-April distress period, but the monthly figure smooths over the sharp W3 acceleration in the weekly data
  • Risk models calibrated to trailing CV may be under-pricing the intra-month regime shift confirmed by the curve moves and single-day price changes

SOMETHING TO WATCH

  • Propane M1-M2 spread as the curve-pattern signal:
    • Observation: closed August at +$7.50, up from -$6.50 at the start
    • Why it matters: further widening confirms bull steepening is intact; a reversal to contango signals the risk premium unwinding
    • What to monitor: weekly M1-M2 close; developments in the Iran-US conflict
  • NWE-Middle East spread as the regional arb signal:
    • Observation: closed at -$38.25, down from a +$140.00 NWE premium in early July
    • Why it matters: a sustained Middle East premium pulls US-origin cargoes toward the Gulf and Asia, tightening European supply further
    • What to monitor: weekly NWE-ME and NWE-FE spread closes; the Aramco September CP settlement
  • Propane-butane discount as the feedstock-substitution signal:
    • Observation: closed at -$90.50, near the two-month wide of -$106.00
    • Why it matters: a break below -$106.00 confirms propane length is structural; a narrowing toward June's -$36.56 average signals it's been absorbed
    • What to monitor: weekly propane-butane close; Kpler September import data; utilization at the restarted Netherlands and Sines units

Note: All figures, prices and market activity referenced in this report are based on the period covered by this monthly update.