New Standard Service Rates for Eversource and United Illuminating (UI) customers, covering the period from January through June 2025, have been announced. Customers are encouraged to check the rate board for up-to-date supply rate options at Energize CT

Who To Call - Natural Gas Emergencies and Non-Emergencies

Local Distribution Companies Emergency Non-Emergency
 Connecticut Natural Gas Company (CNG)  866-924-5325  860-524-8361
 Norwich Public Utilities (NPU)  860-887-7207  860-887-2555
 Southern Connecticut Gas Company (SCG)  800-513-8898  800-659-8299
 Yankee Gas Services Company
 d/b/a Eversource Energy (YGS)
 877-944-5325  800-989-0900

 

Interstate Transmission Companies:   Emergency Non-Emergency
 Algonquin Gas Transmission (Algonquin)  800-726-8383  713-627-5400
 Iroquois Gas Transmission (Iroquois)   800-888-3982  800-253-5152
 Tennessee Gas Pipeline (Tennessee)  800-231-2800  800-781-4152

 

Coverage by Town
(View map of the towns served by the Local Distribution Companies)

Local Distribution Companies Interstate Transmission
Companies
TOWN CNG NPU SCG YGS Algonquin Iroquois Tennessee
Andover Algonquin  
Ansonia   YGS  
Ashford Algonquin  
Avon CNG  
Barkhamsted YGS Tennessee
Beacon Falls YGS  
Berlin CNG YGS Algonquin  
Bethany Tennessee
Bethel YGS Algonquin  
Bloomfield CNG Tennessee
Bolton CNG      
Bozrah YGS   
Branford SCG  
Bridgeport SCG Tennessee
Bristol YGS  
Brookfield YGS Algonquin Iroquois  
Brooklyn YGS  
Burlington YGS  
Canton CNG  
Chaplin Algonquin  
Cheshire YGS Algonquin Tennessee
Clinton SCG  
Colchester       YGS      
Columbia Algonquin  
Coventry  CNG Algonquin  
Cromwell YGS Algonquin  
Danbury YGS Algonquin  
Darien YGS  
Deep River SCG   
Derby YGS Tennessee
Durham       YGS      
East Granby   YGS Tennessee
East Haddam  
East Hampton CNG  
East Hartford CNG  
East Haven SCG Algonquin  
East Lyme YGS  
East Windsor YGS  
Eastford Algonquin  
Easton SCG Tennessee
Ellington YGS  
Enfield YGS  
Essex SCG  
Fairfield SCG Tennessee
Farmington CNG Algonquin Tennessee
Franklin YGS Algonquin  
Glastonbury CNG Algonquin  
Granby CNG  
Greenwich CNG Tennessee
Griswold       YGS      
Groton YGS  
Guilford SCG Algonquin  
Haddam       
Hamden SCG Tennessee
Hartford CNG  
Hartland Tennessee
Harwinton YGS  
Hebron CNG Algonquin  
Killingly YGS  
Lebanon Algonquin  
Ledyard YGS Algonquin  
Lisbon       YGS      
Litchfield YGS  
Madison SCG  
Manchester CNG Algonquin  
Mansfield CNG YGS Algonquin  
Marlborough  
Meriden YGS  
Middlebury YGS Algonquin  
Middlefield YGS  
Middletown YGS Algonquin  
Milford SCG Iroquois  
Monroe YGS Iroquois  
Montville YGS Algonquin  
Naugatuck YGS Algonquin  
New Britain CNG Tennessee
New Canaan YGS Tennessee
New Hartford YGS Tennessee
New Haven SCG  
New London YGS  
New Milford YGS Iroquois  
Newington CNG  
Newtown YGS Algonquin Iroquois  
North Branford SCG Algonquin  
North Haven SCG Algonquin  
North Stonington YGS Algonquin  
Norwalk YGS Tennessee
Norwich NPU Algonquin  
Old Saybrook SCG  
Orange SCG Tennessee
Oxford YGS Algonquin  
Plainfield YGS  
Plainville YGS Algonquin Tennessee
Plymouth YGS  
Pomfret YGS  Algonquin  
Portland CNG Algonquin  
Preston NPU YGS Algonquin  
Prospect YGS Algonquin  
Putnam YGS Algonquin  
Redding YGS  
Ridgefield YGS  
Rocky Hill CNG Algonquin  
Salem       YGS      
Seymour YGS  
Shelton YGS Iroquois Tennessee
Sherman Iroquois  
Simsbury CNG Tennessee
Somers YGS  
South Windsor YGS  
Southbury YGS Algonquin  
Southington YGS Algonquin Tennessee
Sprague YGS  
Stamford YGS Tennessee
Stonington YGS Algonquin  
Stratford SCG Tennessee
Suffield YGS Tennessee
Thomaston YGS  
Thompson Algonquin  
Tolland YGS  
Torrington YGS Tennessee
Trumbull SCG Tennessee
Vernon YGS Algonquin  
Wallingford YGS Algonquin Tennessee
Waterbury YGS Algonquin  
Waterford YGS Algonquin  
Watertown YGS  
West Hartford CNG Tennessee
West Haven SCG  
Westbrook SCG  
Weston SCG  
Westport SCG Tennessee
Wethersfield CNG  
Wilton YGS  
Winchester YGS Tennessee
Windham YGS Algonquin  
Windsor CNG YGS Tennessee
Windsor Locks YGS  
Wolcott YGS  
Woodbridge SCG Tennessee
Woodbury YGS  

Gas Pipeline Safety

Content last updated March 2024