The latest slide followed a sharp Tuesday retreat that exceeded the 4% decline reported earlier in the session. Brent settled 5.3% lower at $79.36 a barrel, its first close below $80 since July 13. WTI settled 5.7% lower at $75.77. Both contracts reached their lowest closing levels in three weeks. The Tuesday losses extended Monday’s drop, when Brent fell 7% and WTI declined 5.1%.

Headline inflation across OECD economies eased to 4.2% in June 2026 from 4.6% in May, ending three straight monthly increases. The measure tracks annual changes in consumer prices across the group’s member countries. Inflation declined in 20 economies, increased in six and remained stable or broadly stable in 12. Nine OECD countries recorded inflation at or below 2%, including three where the rate stood below 1%. Energy prices drove much of the monthly easing. OECD energy inflation fell four percentage points to 11.7% year on year, after reaching 15.8% in May.

The eruption began Monday and intensified as gas, lava and ash rose from the crater. Pyroclastic flows moved through several ravines on Fuego’s western and southwestern slopes, reaching distances of five to seven kilometers. These flows contain hot gas, ash and rock and can move at high speed. Monitoring teams also tracked an ash column spreading west and northwest, with volcanic material reported far beyond the immediate danger zone.