Platts to launch new USGC pipeline unleaded 87 segregated batch assessments, eWindow instrument from Aug. 3

• Launch date will be Aug. 3
• "Platts Gasoline 2M Seg" instrument to be available in eWindow
• "Platts Gasoline M2" eWindow instrument to strictly reflect fungible batches
• Fungible M2 remains basis for USGC Waterborne M2, swap assessments

Platts, a part of S&P Global Energy, will launch new assessments for segregated batches loading onto Colonial Pipeline for US Gulf Coast unleaded 87 regular gasoline, effective Aug. 3, 2026.

Platts previously had proposed to launch the new assessments and eWindow instrument July 13, but due to market feedback will now launch Aug. 3.

Platts will continue to assess prompt-cycle fungible batches for regular unleaded 87 (M2 grade) gasoline in the Platts Market on Close assessment process (MOC).

Platts will assess segregated batches, currently designated as 2M grade, as a differential to NYMEX RBOB futures, an outright price, and a spread to the fungible M2 assessment expressed in cents/gal.

Platts will also launch a related eWindow instrument to reflect segregated batches. The new instrument would be under the product name "Platts Gasoline 2M Seg" in the Platts eWindow.

The new symbols are as follows:

In line with Colonial Pipeline rules and market feedback, the minimum volume for segregated batch assessments will be 50,000 barrels.

Bids and offers in the MOC will be for a minimum volume of 50,000 barrels and can be increased in 50,000-barrel increments. Similar to other US gasoline eWindow instruments, participants will be able to improve their bids or offers by 0.25 cent every 30 seconds and will have the option to repeat their bid or offer in the event of a trade.

The minimum volume considered for Platts unleaded 87 regular gasoline fungible assessments (PGACT00) will not be impacted by this change and will remain 25,000 barrels.

From Aug. 3, the Platts Gasoline M2 eWindow instrument will strictly reflect fungible batches for Colonial Pipeline's prompt cycle.

FOB USGC Waterborne unleaded 87 and swap assessments will reflect the fungible unleaded 87 assessment as the basis for the calculations.

The M2 unleaded 87 assessment will continue to reflect both fungible and segregated batches until Aug. 3. Trades published using the M2 instrument in the eWindow prior to the Aug. 3 launch will not be impacted by this change.

The new segregated batch price assessments will be published on Platts Global Alert and Platts Refined Products Alert pages 28, 156, 330 and 331 as well as in US Marketscan and the Oilgram Price Report.

Please send any comments or questions to americas_products@spglobal.com, pricegroup@spglobal.com, and market_integrity_review@spglobal.com.

For written comments, please provide a clear indication if comments are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make comments not marked as confidential available upon request.