CME Group Petroleum Index

An end-of-day index that represents a single, transparent price for three underlying futures contracts: WTI, RBOB and NY Harbor ULSD.

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Calculated and published as soon as practically possible after the end of each US business day, by 5:30 EST. It will not be published on US holidays.


Reflects a weighted basket of three widely traded Energy futures contracts and is based on the official Exchange Futures daily settlement prices of the WTI, RBOB and NY Harbor ULSD future contracts.

Follows industry best practices

Complies with industry best practices and IOSCO Principles for Financial Benchmarks.

Petroleum Index

Follow the benchmark index for the oil market, an end-of-day index that represents a single value for a basket of underlying Energy futures listed on NYMEX.

As required by the CME Group Petroleum Index Methodology, the Administrator has assessed the weightings of the daily average open interest for the three futures contracts used in the calculation. On April 1st, 2022 the weights have been updated to 75% for WTI, 11% for RBOB, and 14% for NY Harbor ULSD.

The index rebalancing did not affect historical values calculated until March 31st, 2022. The WAP0 used in the calculation of the index also remained unchanged.

Further details are available in the CME Petroleum Index Methodology document. Additional queries can be directed at the benchmark administrator. emailing

End of Day Index Value

Intraday Index Value 15 Minute Intervals

In accessing this proprietary data from this website, you acknowledge you have read and agree to all CME Data Terms of Use. To discuss licensing options, please contact CME Data Sales.


How to access

Direct from CME Group

The Petroleum Index End of Day and Intraday values are updated daily on this website in the data tables above.
They are also both available on CME Group's Market Data Platform (MDP), End of Day index symbol: CPX, Intraday Index symbol: CVX.

Historical data for both Indexes is available via CME DataMine.

Bloomberg codes

Coming soon.

Refinitiv codes

Coming soon.

Oversight Committee

The oversight committee will provide independent governance, and challenge to the Administrator on all aspects of the benchmark determination process in accordance with the Oversight Committee Terms of Reference.

Owain Johnson (Chair)

CME Group Research & Product Development

Vincenzo Albano

CME Group Benchmark Administration

Paul Wightman

CME Group Research & Product Development

Verena Peternell

CME Group Energy Products

Graham Stride

CME Group Benchmark Administration

Nicolas Dupuis

CME Group Energy Products

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