Group 3 Suboctane Jumps to 3-Week High
2/19 4:41 PM
Group 3 Suboctane Jumps to 3-Week High Miguel E. Andujar DTN Refined Fuels Market Reporter DAVENPORT, FL (DTN) -- Basis for Oklahoma Group 3 suboctane gasoline strengthened sharply this week as steady buying interest met limited selling activity, pushing differentials to their strongest level in nearly a month. The differential for Group 3 regular suboctane, also known as V-grade, surged 15.5cts on the day to trade at a 17.5cts discount to March NYMEX RBOB futures. That was the strongest level since January 26, when it was assessed at a 16.5cts discount to the front-month RBOB contract, DTN data showed. Market sources indicated that buying interest in the product has remained consistent throughout the week, while offers have been limited, contributing to the stronger basis structure. The uptick in Group 3 gasoline was not reflected in Chicago, where CBOB differentials held at a 29cts discount to March NYMEX RBOB futures. That was about 3cts weaker than the previous session, signaling that the strength remained localized to the Group 3 market rather of being broad-based across the Midwest. (c) Copyright 2026 DTN, LLC. All rights reserved.
 
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