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your business

CNG’s commercial customers can purchase their natural gas supply from CNG or one of many other suppliers, also known as marketers, Energy Services Companies or ESCOs.

CNG is your energy delivery company. Whether you purchase your natural gas supply from CNG or a marketer other than CNG, CNG will continue to deliver your energy, safely and reliably. If you have a natural gas emergency or you have questions regarding your energy delivery service, CNG will be there for you.


A series of "deregulation" proceedings by the federal government during the early 1990s resulted in partially deregulated natural gas markets in Connecticut. Since April 1996, firm transportation service has been available to commercial and industrial customers in the state. Transportation service allows customers to buy gas from third-party marketers but still have the regulated local utility company (like CNG) continue to deliver the gas. Prior to April 1996, CNG was the only source responsible for buying and delivering gas to its customers.

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