Crude Oil Posts Largest Weekly Loss in Months as Brent Falls 16%, WTI Drops 13% Post-Election

The Quick Take

• Brent crude fell over 16% on the week to close near $98 per barrel, while WTI declined approximately 13% to close at $90.83 — the steepest weekly decline in months.
• The Democratic Congressional sweep raised supply-side expectations and reduced geopolitical risk premiums that had been supporting crude prices.
• Despite the sharp weekly loss, prices edged marginally higher on the final trading day as short-term bargain buying provided technical support.

A weekly decline of 16% in Brent crude represents one of the most significant single-week energy market moves in recent memory, comparable to major disruption events such as OPEC+ surprise decisions and demand shock episodes. The magnitude suggests the correction was not simply profit-taking but a structural repricing of geopolitical risk, as the Democratic Congressional outcome implied reduced probability of near-term conflict escalation with Iran and potentially a return to diplomatic engagement. The final-day uptick reflects technical positioning by shorter-term traders, not a reversal of the fundamental bearish thesis.

The severity of the correction creates asymmetric effects across the energy supply chain. South Korean refiners — SK Innovation and GS Caltex — benefit directly from declining input costs, potentially posting margin expansion in Q4 as crack spreads widen when product prices hold up better than crude. POSCO and Korean steel manufacturers face reduced energy cost pressures. Korean petrochemical firms face a more complex picture: declining feedstock costs help margins but could also signal demand weakness that depresses product pricing ahead of chemical sector earnings.

The key data points to track are OPEC+ production quota adherence — specifically Saudi Arabia and UAE — and IEA and EIA weekly inventory draws, which will determine whether the demand side can absorb the geopolitical premium's removal at current price levels. Watch the OPEC+ November meeting for emergency output cut signals; Saudi Arabia's fiscal breakeven above $80 per barrel means prolonged prices in the low-$90s pressure the kingdom's budget assumptions. The Korean won's performance relative to USD is the domestic macro variable — crude is priced in dollars, so KRW strength amplifies import savings for Korean energy importers.

Synthesized from 2 sources.