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Introduction

Electricity and natural gas are essential services for millions of homes and businesses across the United States. From powering household appliances and heating homes to supporting hospitals, schools, offices, factories, and public infrastructure, utility companies play an important role in everyday life. The U.S. energy industry includes many large utility providers. Some companies primarily deliver electricity, while others focus on natural gas or provide both services. These companies operate across different states and service territories, and the utility available to a customer usually depends on where the property is located.

Top Gas and Electric Utility Companies in the USA

This guide provides an informational overview of some of the biggest and most recognized gas and electric utility companies in the United States:

  • Duke Energy
  • Black Hills Energy
  • Spire Inc.
  • Dominion Energy
  • Southern Company
  • CenterPoint Energy
  • Atmos Energy
  • PG&E (Pacific Gas and Electric)
  • Consumers Energy
  • Xcel Energy

The purpose of this article is to help readers understand each company’s service areas, major utility services, customer account tools, and general role in the U.S. energy market.

It is important to understand that utility rates, billing structures, available plans, fees, assistance programs, and customer-service options can vary by state, service territory, customer type, and local regulations. In many regulated utility markets, customers may not be able to choose their local electricity or natural gas delivery company. Instead, the utility is assigned according to the customer’s address.

Therefore, this article is not a ranking, endorsement, or guarantee of pricing, reliability, or customer satisfaction. Customers should review their local utility’s official website and applicable state or local regulations for current information.

Understanding Electricity Companies in the US

Before comparing utility companies, it helps to understand how the U.S. electricity market works.

Many utility companies are responsible for several parts of the energy system, including:

  • Generating electricity
  • Purchasing electricity from power producers
  • Operating transmission systems
  • Maintaining local power lines
  • Delivering electricity to homes and businesses
  • Managing meters and billing
  • Responding to power outages
  • Maintaining natural gas pipelines
  • Supporting energy-efficiency programs

In some states, electricity service is regulated through a traditional utility model. A local utility may generate or purchase electricity, maintain the grid, deliver power, and bill customers.

Other states have competitive or deregulated electricity markets. In these areas, customers may be able to select a retail electricity supplier. However, the local utility generally continues to own and maintain the poles, wires, meters, or other delivery infrastructure.

For example, CenterPoint Energy explains that in its Houston electric service area, it operates as a regulated “poles and wires” utility, while retail electricity providers compete to sell electricity plans.

This distinction is important because the company shown on an electricity bill may not always perform every part of the energy service.

Duke Energy

Duke Energy is one of the largest energy holding companies in the United States. The company provides electric and natural gas utility services across multiple states.

According to the company’s published information, Duke Energy’s electric utilities serve customers in North Carolina, South Carolina, Florida, Indiana, Ohio, and Kentucky. Its natural gas operations serve customers in parts of North Carolina, South Carolina, Ohio, and Kentucky.

Main services

Duke Energy’s services may include:

  • Residential electricity service
  • Business electricity service
  • Natural gas service in selected areas
  • Online account management
  • Digital billing tools
  • Energy-use information
  • Outage reporting
  • Energy-efficiency resources
  • Customer support and payment assistance information

Online account tools

Customers may be able to create an online account to:

  • View current and previous bills
  • Review electricity usage
  • Make payments
  • Set up recurring payments
  • Receive billing notifications
  • Report or monitor outages
  • Update account information

Available features may differ by location and account type.

Energy programs

Duke Energy provides information about energy-saving programs and home-efficiency resources. Depending on the service area, customers may find information about smart thermostats, energy assessments, rebates, or programs designed to reduce energy consumption.

Duke Energy’s large service footprint makes it one of the most recognized utility providers in the Southeast and Midwest.

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Black Hills Energy

Black Hills Energy provides electricity and natural gas services across parts of the central and western United States.

The company states that its utility operations serve approximately 1.35 million customers across eight states.

Black Hills Energy operates in selected communities in states that include:

  • Arkansas
  • Colorado
  • Iowa
  • Kansas
  • Nebraska
  • South Dakota
  • Wyoming
  • Other designated service areas

The exact utility service available depends on the customer’s address. Some areas receive natural gas service, while others may receive electricity service or both.

Main services

Black Hills Energy may provide:

  • Residential electricity
  • Commercial electricity
  • Natural gas delivery
  • Online account access
  • Billing and payment options
  • Outage information
  • Energy-saving resources
  • Customer support

Customer account features

Customers can generally use online tools to manage utility accounts, review bills, make payments, and access service information.

The company also provides customer-service channels for non-emergency questions and account-related documentation.

What customers should review

Before starting service, customers should verify:

  • Whether electricity, gas, or both are provided
  • Current rates and approved tariffs
  • Billing schedules
  • Deposit requirements
  • Available payment programs
  • Local outage-reporting procedures

Because service rules vary by state, information from the official website should be reviewed based on the customer’s location.

Spire Inc.

Spire Energy is primarily a natural gas utility company. Unlike some companies in this guide, Spire generally focuses on natural gas distribution rather than operating as a broad electricity provider.

Spire serves customers in Alabama, Mississippi, Missouri, and Tennessee. The company reports serving nearly two million homes and businesses across its service territories.

Main services

Spire’s services may include:

  • Residential natural gas service
  • Commercial natural gas service
  • Natural gas delivery
  • Online billing
  • Account management
  • Usage information
  • Energy-efficiency resources
  • Safety information

Natural gas may be used for:

  • Home heating
  • Water heating
  • Cooking
  • Clothes drying
  • Business operations
  • Industrial processes

Online account management

Spire provides online account tools that may allow customers to:

  • View utility bills
  • Make payments
  • Review energy usage
  • Manage account details
  • Access billing information

The company also provides a guest-payment option for eligible customers who prefer to make a payment without registering for a full online account.

Gas safety

Customers who smell gas or suspect a natural gas emergency should leave the area and follow the emergency instructions provided by the utility or local emergency authorities. Spire advises customers to leave the area and contact the company or emergency services when a gas emergency is suspected.

Dominion Energy

Dominion Energy is a major regulated energy company headquartered in Richmond, Virginia.

The company provides regulated electricity service to millions of homes and businesses in Virginia, North Carolina, and South Carolina. It also operates natural gas services in selected areas.

Main services

Dominion Energy may provide:

  • Residential electricity
  • Commercial electricity
  • Natural gas service in designated territories
  • Online billing
  • Energy-use information
  • Outage reporting
  • Energy-efficiency resources
  • Rebate and savings programs

Energy-saving information

The company provides information about home improvements, energy-saving practices, and selected rebates or efficiency programs. Availability may depend on the state, customer eligibility, and current program rules.

Clean-energy development

Dominion Energy has invested in renewable and lower-carbon energy resources, including offshore wind and solar projects. The company is also involved in regulated energy infrastructure and grid development.

Customer considerations

Customers should check their state-specific Dominion Energy website for:

  • Current electricity rates
  • Billing options
  • Service requests
  • Outage information
  • Energy programs
  • Payment assistance resources

Rates and program availability may change following regulatory reviews or approved utility filings.

Southern Company

Southern Company is one of the largest energy companies in the United States and has a significant presence across the Southeast.

Southern Company operates through several energy businesses and utility subsidiaries. Its family of companies serves more than nine million customers across the Southeast and other areas.

Major operating companies associated with Southern Company include:

  • Alabama Power
  • Georgia Power
  • Mississippi Power
  • Southern Company Gas

Main services

Southern Company’s businesses support:

  • Electricity generation
  • Electricity transmission
  • Electricity distribution
  • Natural gas distribution
  • Renewable-energy development
  • Nuclear energy
  • Energy technology

The company operates a large energy infrastructure network. Southern Company reports responsibility for more than 27,000 miles of transmission lines and thousands of substations through its operations.

Customer service

Customers generally interact with the local utility company serving their area rather than Southern Company’s corporate office.

For example, a customer in Georgia may work directly with Georgia Power, while a customer in Alabama may use Alabama Power’s account and customer-service systems.

Energy mix

Southern Company uses a diverse energy portfolio that includes:

  • Natural gas
  • Nuclear power
  • Solar energy
  • Renewable resources
  • Other generation technologies

The company describes its energy strategy around reliability, affordability, safety, and long-term infrastructure development.

CenterPoint Energy

CenterPoint Energy is a multi-state energy delivery company that provides electric and natural gas services.

CenterPoint Energy’s primary businesses include electric transmission and distribution, natural gas distribution, and related energy services.

The company serves approximately seven million metered customers across its service areas.

Service areas

CenterPoint Energy operates in selected regions of:

  • Texas
  • Indiana
  • Minnesota
  • Ohio

The services available vary by location.

Important information for Texas customers

In parts of Texas, customers may be able to choose a retail electricity provider. CenterPoint Energy may continue to maintain the local electricity infrastructure, including poles, wires, and related equipment.

This means a customer’s electricity plan may come from a retail provider, while CenterPoint remains responsible for delivering electricity and responding to certain infrastructure-related outages.

Main services

CenterPoint may provide:

  • Electric delivery
  • Natural gas delivery
  • Outage reporting
  • Online account services
  • Billing information
  • Energy-use resources
  • Safety information

Customer considerations

Customers should confirm whether CenterPoint is:

  1. Their electricity delivery utility
  2. Their natural gas utility
  3. Both
  4. Or neither, depending on the service address

This distinction can be especially important in competitive electricity markets.

Atmos Energy

Atmos Energy is one of the largest natural gas-only distributors in the United States.

Atmos Energy primarily focuses on the safe distribution of natural gas to residential, commercial, and industrial customers.

The company serves customers across several states, including parts of:

  • Texas
  • Colorado
  • Kansas
  • Kentucky
  • Louisiana
  • Mississippi
  • Tennessee
  • Virginia
  • Other selected service areas

Main services

Atmos Energy may provide:

  • Residential natural gas service
  • Commercial gas service
  • Natural gas pipeline operations
  • Online account management
  • Billing and payment tools
  • Gas-safety information
  • Energy-efficiency guidance

Natural gas use

Customers may use natural gas for:

  • Space heating
  • Water heating
  • Cooking
  • Laundry appliances
  • Commercial equipment
  • Manufacturing and industrial operations

Account management

Online services may allow customers to:

  • View and pay bills
  • Review account activity
  • Manage payment preferences
  • Access usage information
  • Request or update service

Available features may differ by state.

Safety information

Customers should follow the utility’s official emergency instructions if they smell gas, hear unusual sounds near a gas line, or suspect a leak. Gas emergencies should be treated differently from routine billing or service questions.

PG&E (Pacific Gas and Electric)

PG&E, formally known as Pacific Gas and Electric Company, is a major combined electricity and natural gas utility based in California.

The company provides electricity and natural gas service to customers across Northern and Central California.

PG&E serves more than 16 million people across a large service territory. The company reports approximately 5.6 million electric distribution customers and 4.6 million natural gas distribution customers.

Main services

PG&E provides:

  • Residential electricity
  • Business electricity
  • Natural gas service
  • Online billing
  • Energy-use information
  • Outage reporting
  • Safety information
  • Energy-efficiency programs
  • Customer support

Energy management

Customers may have access to tools for:

  • Reviewing energy use
  • Comparing current and past consumption
  • Managing bills
  • Receiving alerts
  • Exploring energy-saving resources

California energy programs

California has a complex energy market with state-specific regulations, clean-energy requirements, and customer programs.

Depending on location and eligibility, customers may find information related to:

  • Energy efficiency
  • Home upgrades
  • Electric vehicles
  • Solar energy
  • Battery storage
  • Demand-response programs

Program availability, costs, eligibility, and benefits can change over time.

Safety and reliability

PG&E maintains extensive electric and gas infrastructure. Customers should use official outage tools and safety resources for current service information.

Consumers Energy

Consumers Energy is a major energy provider in Michigan.

The company provides electricity and natural gas services to residential and business customers throughout much of the state.

Consumers Energy is one of Michigan’s largest utility companies and operates a broad network of electric and natural gas infrastructure.

Main services

Consumers Energy may provide:

  • Residential electricity
  • Commercial electricity
  • Natural gas service
  • Online account access
  • Billing tools
  • Outage reporting
  • Energy-saving programs
  • Home-efficiency resources

Online account tools

Customers may be able to:

  • View bills
  • Make payments
  • Monitor energy use
  • Receive account notifications
  • Report outages
  • Update account information

Energy-efficiency programs

The company provides information about energy-saving opportunities that may include:

  • Efficient appliances
  • Home-energy improvements
  • Smart thermostats
  • Heating and cooling upgrades
  • Business-efficiency programs

Program rules and availability may vary.

Michigan service

Consumers Energy is an important utility provider for Michigan households and businesses. Customers should use the company’s official website to verify service availability and current account information.

Xcel Energy

Xcel Energy is a major electric and natural gas utility company serving customers across several states.

Its service territories include parts of:

  • Colorado
  • Michigan
  • Minnesota
  • New Mexico
  • North Dakota
  • South Dakota
  • Texas
  • Wisconsin

The company provides electricity and natural gas services, depending on the customer’s location.

Main services

Xcel Energy may provide:

  • Residential electricity
  • Commercial electricity
  • Natural gas service
  • Renewable-energy programs
  • Online account management
  • Billing and payment services
  • Outage information
  • Energy-efficiency resources

Clean-energy programs

Xcel Energy has invested in renewable-energy resources and grid modernization. Depending on the state, customers may find programs related to:

  • Solar energy
  • Renewable electricity
  • Electric vehicles
  • Energy efficiency
  • Smart-energy technology

Customer account features

Online tools may allow customers to:

  • Pay bills
  • Review energy use
  • Set up automatic payments
  • Receive outage notifications
  • Manage service requests

Customers should select their state on the official website because rates, programs, and service options can differ across jurisdictions.

Creating an Online Account

Creating an online account allows customers to manage many aspects of their utility service from one convenient location.

Benefits of an Online Account

An online account may allow users to:

  • View account information
  • Access billing history
  • Pay bills online
  • Monitor energy usage
  • Receive outage alerts
  • Update contact information
  • Enroll in paperless billing
  • Manage AutoPay settings

Steps to Create an Account

The general account registration process typically includes:

Step 1

Visit the official Duke Energy website.

Step 2

Select the option to create or register an account.

Step 3

Provide your:

  • Account number
  • ZIP code
  • Email address
  • Personal information for verification

Step 4

Create a secure username and password.

Step 5

Verify your email address if requested.

Step 6

Sign in to access your online account dashboard.

For security reasons, always use a strong password and avoid sharing your login credentials.

How to Compare Electricity Rates and Plans

Electricity rates are not always directly comparable between utility companies because every state has different regulations, energy sources, infrastructure costs, taxes, and billing systems.

When reviewing electricity costs, consider the following factors:

1. Electricity Supply Rate

The supply rate may cover the cost of generating or purchasing electricity.

In competitive markets, customers may be able to select a retail supplier. The available plan could include:

  • Fixed pricing
  • Variable pricing
  • Renewable-energy options
  • Contract-based plans
  • Month-to-month plans

Customers should read all plan terms before enrolling.

2. Delivery Charges

Delivery charges may support:

  • Power lines
  • Poles
  • Transformers
  • Substations
  • Meter systems
  • Grid maintenance
  • Outage restoration

These charges may remain associated with the local utility even when customers choose another electricity supplier.

3. Taxes and Fees

A utility bill may include:

  • State taxes
  • Local taxes
  • Regulatory charges
  • Public-benefit fees
  • Infrastructure charges

The exact charges depend on the location.

4. Fixed Monthly Charges

Some utility bills include a fixed customer charge that applies regardless of total electricity use.

5. Energy Usage

Electricity consumption is generally measured in kilowatt-hours, or kWh.

Higher electricity use may increase the total bill, although rate structures can vary.

6. Time-of-Use Pricing

Some utilities offer time-based rates. Electricity may cost different amounts depending on the time of day.

Customers should understand:

  • Peak periods
  • Off-peak periods
  • Seasonal pricing
  • Eligibility requirements

Customer Service: What Should Customers Look For?

Customer-service experiences can vary by location, service issue, and individual account.

Instead of relying only on general ratings, customers may want to review:

  • Online account access
  • Mobile-app availability
  • Payment options
  • Billing notifications
  • Outage communication
  • Customer-support hours
  • Language accessibility
  • Accessibility services
  • Payment-assistance resources

A company’s customer-service experience may also differ between electricity and natural gas operations.

For urgent electrical or gas emergencies, customers should follow the utility’s official safety guidance and contact emergency services when necessary.

How to Find Your Local Electricity Company

If you recently moved or are unsure which company serves your property, try the following:

  1. Check a previous utility bill.
  2. Ask the property owner or property manager.
  3. Review the local government or state utility commission website.
  4. Search for the utility serving your ZIP code.
  5. Contact the utility directly to confirm service availability.

Do not assume that a utility serves an entire state. Many companies operate only in specific cities, counties, or regions.

Tips for Managing Electricity Costs

Customers may be able to reduce energy use through practical steps such as:

  • Turning off unused lights
  • Using energy-efficient appliances
  • Adjusting thermostat settings
  • Sealing air leaks
  • Replacing inefficient lighting
  • Maintaining heating and cooling systems
  • Reviewing monthly energy-use information
  • Checking eligibility for local efficiency programs

Savings are not guaranteed. Actual results depend on the home, weather, equipment, energy rates, household behavior, and local program requirements.

Frequently Asked Questions

Which is the best electricity company in the USA?

There is no single best electricity company for every customer. The available utility usually depends on the service address. Customers should compare local rates, billing options, service programs, and official customer resources.

Can I choose my electricity company?

It depends on the state and local market structure. Some areas allow customers to choose a retail electricity supplier, while other areas are served by a regulated utility.

Are electricity rates the same across the United States?

No. Rates can vary based on state regulations, energy sources, infrastructure costs, weather, taxes, and local utility policies.

Is a utility company the same as an electricity supplier?

Not always. In competitive markets, one company may sell the electricity while the local utility maintains the poles, wires, meters, and delivery network.

How do I report a power outage?

Use the outage-reporting tool, mobile app, or emergency contact information provided by your local utility. During severe weather events, restoration times may change.

What should I do if I smell natural gas?

Leave the area, avoid creating sparks or flames, and follow the emergency instructions provided by the local utility and emergency authorities.

Can I pay my utility bill online?

Most major utility companies provide online payment options. Some also offer automatic payments, mobile apps, payment arrangements, and guest-payment features.

Final Thoughts

Duke Energy, Black Hills Energy, Spire, Dominion Energy, Southern Company, CenterPoint Energy, Atmos Energy, PG&E, Consumers Energy, and Xcel Energy are important participants in the U.S. electricity and natural gas industry.

Each company operates in different regions and has its own service structure. Some provide both electricity and natural gas, while others focus primarily on one energy source.

When comparing utility services, customers should consider more than the advertised electricity rate. It is also useful to review:

  • Service availability
  • Delivery charges
  • Billing options
  • Customer account tools
  • Energy-efficiency programs
  • Outage resources
  • Local regulations
  • Current plan terms

Because utility rates and programs can change, customers should verify current information through the official website of their local utility or the relevant state utility regulator.

This article is intended for general educational and informational purposes. It is not an official utility website, financial recommendation, energy contract offer, or guarantee of rates, savings, service quality, or customer satisfaction.

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