As the challenges presented by COVID-19 evolve, the teams across the Colonial Group family of companies continue to work tirelessly to protect our employees and support our customers. We have returned to normal operations but continue to monitor the situation and are following current mask guidelines issued by the CDC. Our dedication to supporting the communities in which we operate remains utmost priority, and we thank our employees and partners for their efforts that continue to allow us to safely operate during these unprecedented times.

CEI Supply Natural Gas
CEI Natural Gas
Colonial Energy, Inc.

a Full-Service
Natural Gas Supplier

CEI 90 Years Experience

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