Partner Companies

APRIL 2018

Atlantic Coast Pipeline Partner Companies Gas — Headquartered in , Georgia, serves approximately At the urgent request of public utilities in and 4.6 million utility customers through its , in early 2014 developed regulated distribution companies in seven states and more a proposal for a new natural gas transmission pipeline to than 1 million retail customers through its companies that serve the growing needs of consumers, ease constraints market natural gas and related home services. Southern on the region’s pipelines and deliver new supplies of is the parent company of Virginia Natural Gas, which lower-cost natural gas from the Appalachian region. After serves 300,000 residential, commercial and industrial reviewing proposals from several pipeline developers, customers in the Hampton Roads region of Virginia. the region’s public utilities selected Dominion Energy’s southerncompanygas.com proposal as the best option to serve the growing needs of their customers. A few months later, in September of 2014, the Atlantic Coast Pipeline, LLC partnership was formed by Dominion Energy, , Piedmont Natural Gas and Southern Company Gas to build and operate this new infrastructure, the Atlantic Coast Pipeline (ACP). The ACP will deliver new, lower-cost supplies of natural gas to public utilities in Virginia and North Carolina to generate cleaner , heat homes for a growing population and power local businesses, particularly manufacturers and other new industries that rely on natural gas. Length: 600 miles Dominion Energy — Headquartered in Richmond, Virginia, Dominion Energy is one of the nation’s largest Capacity: 1.5 billion cubic feet per day producers and transporters of energy, with a portfolio of Partner Companies: approximately 25,700 megawatts of electric generation, 15,000 miles of natural gas pipelines and 6,600 miles of Dominion Energy, Duke Energy, Piedmont electric transmission and distribution lines serving more Natural Gas & Southern Company Gas than 6 million utility and retail energy customers. Public Utility Customers: DominionEnergy.com Dominion Energy Virginia, Duke Energy — Headquartered in Charlotte, North Virginia Natural Gas, Duke Energy, Carolina, Duke Energy is the largest electric power holding Piedmont Natural Gas, Public Service company in the United States with electric distribution, Company of North Carolina electric generation, natural gas distribution, international generation and assets. Its Electric Utilities and Infrastructure business unit serves approximately 7.5 million customers, and the company’s Gas Utilities Construction jobs: 17,000 jobs and Infrastructure business unit distributes natural gas to approximately 1.6 million customers. duke-energy.com Construction economic activity: $2.7 billion Piedmont Natural Gas — Headquartered in Charlotte, Long-term jobs: 2,200 jobs North Carolina, Piedmont Natural Gas is an energy services Annual local property tax revenue: $28 million company whose principal business is the distribution of natural gas to more than a million residential, commercial, Annual energy cost savings: $377 million industrial and power generation customers in North Carolina, and . piedmontng.com CONTINUED ACP — Partner Companies PAGE 2

Construction Contractors In September 2016, Spring Ridge Constructors, LLC (SRC) large-diameter pipelines in every region and terrain was selected as the lead contractor for the ACP. SRC across North America. SRC is comprised of Michels is a joint venture of the nation’s four leading pipeline Corporation, Price Gregory International, Inc., Rockford builders, with a combined 200 years’ experience building Corporation and U.S. Pipeline, Inc. srcconstructors.com

Michels Corporation (Michels) — Headquartered in Rockford Corporation (Rockford) — A Primoris Services Brownsville, Wisconsin, Michels is a company of 6,000 Corporation company headquartered in Dallas, Texas, dedicated, innovative and hard-working employees who Rockford specializes in large-diameter natural gas and take great pride in performing safe, high-quality work. liquid pipeline construction. For more than 50 years, For more than 50 years, Michels has exceeded customer Rockford has been a leader in exceptional construction expectations. michels.us services and has earned a reputation for excellence in the pipeline industry. Rockford is committed to the health Price Gregory International Inc. (PGI) — A Quanta and safety of its employees, subcontractors and the Services, Inc. company headquartered in , Texas, environment. primoriscorp.com/business-units/rockford PGI is a leading provider of infrastructure services with a focus on construction of pipelines and related facilities. U.S. Pipeline, Inc. (USPL) — Headquartered in Houston, In business for more than 100 years, the Company has Texas, USPL is recognized as one of the safest, most successfully completed hundreds of pipeline projects in reliable and innovative energy infrastructure construction a safe and cost-effective manner. PGI’s highest priority is companies in the Americas. USPL has successfully the safety and health of employees, vendors, customers, operated in the United States and select international those affected by construction activities, and the markets for more than 20 years. USPL has earned a surrounding environment. pricegregory.com reputation as one of the safest pipeline contractors in the business and is proud of a lengthy record of Pipeline Contractors Association (PLCA) safety award achievements. uspipeline.com