Platts to discontinue NWE, US cracker margin assessments Sep 30

Platts, part of S&P Global Energy, will discontinue the European and US cracker margin assessments effective Sept. 30, 2026.

The discontinuation will eliminate duplication in the publication of cracker margins. This was first proposed in a note published July 3.

Alternative cracker margin calculations available at Core: Workspace will continue to be published.

The complete list of symbol codes affected is available below:

European assessments	Symbol
NWE Cracker Margin Spot	AAXOI00
NWE Cracker Margin Spot Eur/mt	AAYDE00
NWE Cracker Margin CP	AAYDF00
NWE Cracker Margin CP Eur/mt	AAYDG00

US assessments	Symbol
Ethane Cracker Margin	ECMDM00
Ethane/Propane Mix Cracker Margin cts/lb	EPMCP00
Ethane/Propane Mix Cracker Margin	EPMDM00
Light Naphtha Cracker Margin cts/lb	LNMCP00
Light Naphtha Cracker Margin	LNMDM00
N-Butane Cracker Margin cts/lb	NBMCP00
N-Butane Cracker Margin	NBMDM00
Propane Cracker Margin cts/lb	PCMCP00
Propane Cracker Margin	PCMDM00

Description	Affected cascade symbol
NWE Cracker Margin Spot MAvg	AAXOI03
NWE Cracker Margin Spot Eur/mt MAvg	AAYDE03
NWE Cracker Margin CP MAvg	AAYDF03
NWE Cracker Margin CP Eur/mt MAvg	AAYDG03

The affected assessments appear on PCA0300, PCA0543, PCA0544, Olefinscan, Polymerscan and Polymerscan Latin America.

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.