Natural Gas

March 31, 2025

Platts updates Platts-ICE Gas Indices Americas locations, weightings for April-Oct 2025

Platts, part of S&P Global Commodity Insights, has updated the Platts-ICE Gas Indices Americas (GIA) natural gas index locations and weightings for April-October 2025.

The locations, location weightings, and region weightings are as follows:

GIA Northeast
LocationWeight
Columbia Gas, Appalachia26.84%
Texas Eastern, M-2 receipts24.90%
Transco, Leidy Line receipts17.67%
Transco, zone 5 delivered16.21%
Eastern Gas, South14.38%

GIA South
LocationWeight
El Paso, Permian Basin31.58%
Waha27.43%
Transco, zone 418.37%
Texas Gas, zone 111.45%
Transco, zone 311.17%

GIA Midwest
LocationWeight
REX, Zone 3 delivered29.22%
Northern Border, Ventura TP19.13%
Dawn, Ontario18.69%
Chicago city-gates17.34%
Alliance, into interstates15.61%

GIA West
LocationWeight
TCPL Alberta, AECO-C40.00%
SoCal Gas, city-gate16.62%
SoCal Gas16.62%
PG&E, Malin13.52%
PG&E city-gate13.24%

The updated weightings took effect on trade date March 31 for flow date April 1.

Platts amends these weightings twice per year, seasonally, based on trade volumes from the same season a year earlier.

Please send any questions, comments, or feedback to AmericasGasPricing@spglobal.com.