The glossary of terms is arranged alphabetically. Click on the letters below to find terms beginning with that letter.

WACOG: Weighted Average Cost of Gas. Formula used by LDCs (and formerly by pipelines) to determine the cost of gas underlying their sales rate.

Wheeling: In the electric market, "wheeling" refers to the interstate sale of electricity. In the natural gas industry, wheeling refers to the movement of gas in and out of short-term storage at hubs.