Natural Gas Glossary

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*Sources:
US Energy Information Administration
Vectren Energy Delivery of Indiana, Inc. (Vectren South) Tariff for Gas Service

Pool – A group of Transportation Customers who have been aggregated by a Pool Operator or School Supplier for gas supply management purposes.

Pool Operator – A marketer, supplier, or Transportation Customer(s) that provides gas supply
management for a Pool.

Pool Operator-Delivered Gas – Gas delivered by a Pool Operator, or on behalf of a Pool Operator, to the Company’s distribution system.

Premises – The main residence or living quarters for a Residential Customer, or the main building of a Commercial or Industrial Customer. The Premises shall include the outlying or adjacent buildings used by the same Customer, provided the use of Gas Service in the outlying or adjacent building(s) is supplemental to the service used in the main residence, main living quarters, or main building of the Customer.

Rate Schedule – A Gas Service applicable to a particular classification of the Customer with specific availability, applicability, character of service, rates and charges, and terms and conditions.

Sales Customer – A Customer receiving Sales Service from the Company.

Sales Service – Gas Service involving the delivery by the Company to the Customer of Company-Supplied Gas.

Service Area – Areas in which the Company has Gas Service available or may offer Gas Service, as certified by the Commission.

Spaceheating Customer – Any Customer receiving Gas Service, any part of which the Customer uses as fuel for the heating of some portion or all of the Customer’s Premises.

Storage Service – Gas Service involving the on-system storage and redelivery by the Company to the Customer of Customer-Delivered gas.

Summer Season – The months of April through October, inclusive.

Therm – 100,000 Btu.

Throughput – The sum of Sales and Transportation Service quantities.

Transportation Customer – A Customer receiving Transportation Service from the Company.

Transportation Service – Gas Service involving the delivery by the Company to the Customer of Customer-Delivered, School Supplier-Delivered or Pool Operator-Delivered gas.

Transmission (of natural gas) – Gas physically transferred and delivered from a source or sources of supply to one or more delivery points. 

Unapproved Use of Gas – Any use by the Customer of Company-delivered gas that is inconsistent with the Company’s Tariff for Gas Service.

Winter Season – The months of November through March, inclusive.

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