SUBSCRIBER NOTE: Platts proposes to expand use of spreads in natural gas indices

S&P Global Platts is reviewing the use of spread trades in its North American natural gas daily and monthly indices, and invites feedback on proposals to expand the use of these trades beyond the limited cases, reflected currently. 1. Platts includes NGX transport trades at Platts locations TCPL Alberta, AECO and Dawn, Ontario and excludes spread trades at all other locations. These spread trades, often called "NGX transport trades," are screened for outliers on an outright price basis and may be excluded from the final daily and monthly indices. For consistency, Platts proposes to extend this practice and include location and time spread trades at all locations in its preliminary and final daily and monthly indices. In final daily and monthly indices these spread trades, like all other reported trades, would be screened for outliers and potentially excluded from index calculations. 2. Additionally, Platts seeks feedback on a further proposal to include physical basis trades, where the price is expressed as a premium or discount to another location, in all preliminary and final daily and monthly indices. Currently physical basis trades are only used in preliminary and final monthly indices at locations east of the Rocky Mountains. Basis trades, like all other reported trades, would be screened for outliers and potentially excluded from index calculations. Platts will accept comments on the above proposals through June 29, 2018. Platts invites comments on the merits of these approaches, and potential timelines for making this change to methodology. Please send any comments regarding to gas_survey_comments@platts.com and pricegroup@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.