Refined Products, Naphtha
July 22, 2026
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.