Platts modifies two Northwest Pipeline natural gas index methodologies

Northwest, Rocky Mountains (monthly market)

Deliveries into Northwest Pipelines mainline in Wyoming, Utah and Colorado between the Kemmerer and Moab stations. Deliveries at Ignacio, Colorado, and elsewhere in zone MO are excluded. Transactions done at Opal, Wyoming, Pioneer Plant and the Muddy Creek compressor station, where Northwest interconnects with Kern River Gas Transmission, MountainWest Pipeline and Colorado Interstate Gas, are used in both the Kern River, Wyoming, and Northwest Pipeline, Rocky Mountain, monthly postings because gas traded at those points often is not for nomination into a specific pipeline.

Northwest, Rocky Mountains (monthly market only)

Deliveries into Northwest Pipelines mainline in Wyoming, Utah and Colorado between the Kemmerer and Moab stations, and transactions at the Kern River Gas Transmission receipt pool (KRGT-Rec Pool). Deliveries at Ignacio, Colorado, and elsewhere in zone MO are excluded.

Northwest, Wyoming pool (daily and monthly market)

Deliveries into Northwest Pipeline from the Green River, Wyoming compressor station to the Kemmerer, Wyoming station. Included are deliveries at the Opal Plant as well as at the Painter, Anschutz, Muddy Creek, Granger, Shute Creek, Pioneer Plant and Whitney stations.

Northwest, Wyoming pool (daily and monthly market)

Deliveries into Northwest Pipeline from the Green River, Wyoming compressor station to the Kemmerer, Wyoming station. Included are deliveries at the Opal Plant as well as at the Painter, Anschutz, Granger, Shute Creek, Pioneer Plant and Whitney stations. Trades done at the Kern River Gas Transmission receipt pool are not included.