SUBSCRIBER NOTE: Platts restates erroneous database records for US natural gas, power data

As part of its ongoing review of historical data sets, S&P Global Platts has identified certain erroneously recorded historical data in US natural gas and power market data categories GD, GM and ES.

To ensure the Platts database contains fully representative data, Platts has restated these erroneous values in its database.

Please copy and paste the entire link below to your browser to see the complete list of symbols and correct values. Both previous and current low, high and close prices have been listed, and the values highlighted in red show exactly which prices have been corrected. There were also some invalid values removed.

https://www.platts.com/IM.Platts.Content/Downloads/Data/price-changes-us-natg as-power-nov2017.xlsx

Please note that this update is part of a series of reviews made to historical data.

On June 23, 2017, Platts restated data where low and high values recorded in the Platts database had been transposed, or where certain data points had been databased with incorrect decimal place settings. That announcement can be found here: https://www.platts.com/new-code-details/26758908 On August 3, Platts identified and amended data where close values were erroneously stated out of the published high and low range. That announcement can be found here: https://www.platts.com/new-code-details/26783236 On August 25, 2017, Platts restated data regarding erroneously recorded historical database records in physical market database categories for oil, agriculture, coal, European natural gas and petrochemicals markets. That announcement can be found here: https://www.platts.com/new-code-details/26793753 On October 23, 2017, Platts restated data regarding erroneously recorded historical database records in oil market derivatives market data categories. That announcement can be found here: https://www.platts.com/new-code-details/26826304 Please send any comments or questions about this announcement to Platts Client Services or email support@spglobal.com.