During this unprecedented time, the teams across the Colonial Group family of companies are working around the clock as part of our nation’s Essential Critical Infrastructure Workforce to support our customers in the world’s most vital industries, including energy, agriculture, food and feed, transportation, chemicals, pharmaceuticals, and public works.  We are dedicated to the support of the communities in which we operate.  We thank our employees and contractors for their unwavering commitment to safely operating our business through this global crisis.

Colonial Energy, Inc.

a Full-Service
Natural Gas Supplier

Backed by more than
90 years of
Energy Supply &
Management Experience


Colonial Energy, Inc.

Independent, Full-Service Natural Gas Marketing Company

Serving Institutional, Industrial & Commercial Clients

Colonial Energy, Inc. Licensed Natural Gas Supplier


Colonial Energy, Inc. (CEI) delivers reliable natural gas supplies at competitive prices to utilities, power generators, large industrial, institutional, and commercial customers in the Eastern United States. 

Colonial Energy, Inc. Natural Gas Marketers

About Us

CEI founded in 1996, is the marketing subsidiary of Colonial Group, Inc. Colonial Energy’s core business is the acquisition and delivery of natural gas to commercial, industrial, and LDC customers.

Colonial Energy, Inc. Natural Gas Marketers


CEI provides, free of charge to prospective and current clients, a daily market report. In addition, you can find links to industry, pipeline and utility websites.

CEI Advantage

Exceptional Customer Service

Gas Schedulers Available 24/7

Daily & Monthly Balance Monitoring

Experienced Supply Consultants

Strategically positioned to supply Eastern U.S. &
Gulf Coast Regions

Diverse Natural Gas Supply & Gas Storage Portfolio

Industries We Serve







College & Universities

Secondary Schools

Office Campuses


Hospitals & Healthcare Facilities

Small Commercial Businesses

Small Manufacturing Companies



Office Buildings