Sale and assignment of Firm transportation on an interstate pipeline. Owners of Firm transportation capacity (usually LDC’s) release this capacity to other parties where such capacity is not being fully utilized (i.e. summer months)

The reconciliation process by which the sum of the volumes of gas available for redelivery by the LDC is compared to the sum of all volumes actually delivered to the customer during the customers billing cycle. This may create either a positive or negative imbalance volume, with associated penalty charges.

The maximum lawful price which may be charged for regulated gas.

The physical location where gas is delivered by an interstate pipeline or from gas wells to a local distribution company. Typically, the delivery point under a Natural Gas Sales agreement.

Defines the type of customer. 1.Residential Service: Covers service to customers for domestic purposes (single, multifamily, or mobile homes, etc.). In residential service, the number of housing units within a structure determines the customer classification. 2.Commercial Service: Covers service to customers engaged in wholesale or retail trade, agriculture, communications, finance, fisheries, forestry, government, insurance, real estate, transportation, etc., and to customers not directly involved in other classes of service. 3.Industrial Service: Covers service to customers engaged primarily in a process that either involves the extraction of raw materials from the earth or a change of raw unfinished materials into another form or product.

Utility which supplies both gas and some other utility service (electricity, water, etc.). For purposes of A.G.A. statistics, a combination utility derives at least 5 percent but less than 95 percent of its total operating revenues from gas operation.

A homogeneous mix of gas obtained from various physical and contractual supply sources.

Natural gas in high-pressure surface containers that is highly compressed (though not to the point of liquefaction). CNG is used extensively as a transportation fuel for automobiles, trucks and buses in some parts of Italy, New Zealand, and in Western Canada, and has recently begun to penetrate some regions of the United States. Small amounts of natural gas are also transported overland in high-pressure containers.

Locations along the interstate pipeline at which large (thousands of horsepower) natural gas-powered engines increase the pressure of the market natural gas stream flowing through the station by compression.

The ultimate user of gas, as opposed to a "customer" who may purchase gas for resale.

How much natural gas or electricity a customer uses.

A term used in public utility regulation to mean the total number of dollars required to supply any total utility service (i.e., revenue requirements); it must include all of the supplier's costs, an amount to cover operation and maintenance expenses, and other necessary costs such as taxes, including income taxes, depreciation, depletion, and amortization of the property not covered by ordinary maintenance. Included also is a fair return in order that the utility can maintain its financial integrity, attract new capital, and compensate the owners of the property for the risks involved.

The most common unit of measurement of gas volume. The amount of gas required to fill a volume of one cubic foot under standard conditions of temperature, pressure and water vapor.

For delivery points equipped with electronic gas measurement equipment, the calendar month is used for billing purposes; for delivery points not equipped with EGM equipment , the customer is billed for the period that takes place between meter readings.