Best Law Firms in the United States for Energy Regulatory Law

More than 900 legal professionals in 26 offices across the country collaborate seamlessly at Barnes & Thornburg to field the right team for you. As one of the 100 largest law firms in the United States, we put our collective experience across legal disciplines to work so you can conduct business in today’s changing marketplace. For more information, visit us online at www.btlaw.com.

Harris Beach Murtha formed in 2025 via the combination of Harris Beach PLLC and Murtha Cullina LLP. A forward-thinking and innovative partnership with the benefit of more than 250 years of combined history, Harris Beach Murtha’s New York roots reach back to 1856, and the firm has had ties to New England since 1936. Harris Beach and Murtha Cullina were separately among the country’s top law firms as ranked by The National Law Journal.

Harris Beach Murtha and its subsidiaries have a strong Northeast presence, with a global reach, and represent clients locally, regionally and nationally. Clients include Fortune 100 corporations, privately held companies, emerging businesses, public sector entities, tax-exempt organizations and individuals. The firm’s practice areas and industries served span appellate law, business litigation, commercial real estate, construction, corporate, environmental, energy, financial institutions, financial restructuring, government compliance and investigations, health care, immigration, intellectual property, labor and employment, mass torts, medical and life sciences, political law, product liability, public finance, tax, and trusts and estates. 

Harris Beach Murtha is the exclusive member firm in Connecticut for Lex Mundi, the world’s leading network of independent firms with in-depth experience in more than 125 countries worldwide. As part of the Lex Mundi global network, Harris Beach Murtha can provide clients with preferred access to more than 22,000 lawyers around the world – all from a single point of contact. Lex Mundi allows Harris Beach Murtha to seamlessly handle clients’ most challenging cross-border transactions and disputes. 

The firm’s lawyers and consultants practice from offices throughout Connecticut in Bantam, Hartford, New Haven and Stamford; New York state in Albany, Binghamton, Buffalo, Ithaca, Niagara Falls, New York City, Rochester, Saratoga Springs, Syracuse, Long Island and White Plains, as well as in Boston, Massachusetts and Newark, New Jersey. For more information, visit www.harrisbeachmurtha.com.

Kazmarek Mowrey Cloud Laseter LLP (KMCL) is a top-tier environmental law firm serving public and private entities nationwide from offices in Atlanta, Birmingham, and Pittsburgh.  With seventeen highly credentialed lawyers dedicated to environmental law, we bring depth and decades of experience to address the needs of Fortune 500 companies, mid-sized businesses and industries, utilities, and state and local governments.

KMCL is a recognized source of compliance, litigation, and transactional expertise focused on the complex and evolving impact of environmental law on business.

Furthermore, we are among the East’s largest environmental practices, including those at the largest law firms focusing on corporate environmental law.  With that foundation, we provide unparalleled sophistication, expertise, and depth on challenging environmental issues at an unmatched value because our boutique platform enables our commitment to two core principles:

1. Surpass the expertise and dedication found in the largest and most sophisticated law firms, and
   
2. Understand our clients’ businesses in order to tailor our services in value-added ways and exceed expectations.

We routinely provide litigation, regulatory, transactional, and policy counselling to clients (a diverse range of Fortune 500 companies, utilities, mid-sized businesses and industries, and local governments) in the highest profile environmental matters, including:

• Representing the State of Georgia in the “water wars”, i.e., ongoing, multi-jurisdictional water supply-related litigation with the United States Army Corps of Engineers, the State of Alabama, and the State of Florida.
  
• Environmental counsel on matters nationwide for the leading producer of flat-rolled aluminium products and world’s largest aluminium recycler.
  
• Act as national environmental counsel to several large real estate portfolio purchasers, as well as to manufacturing clients on corporate transactions, litigation, and regulatory compliance.
  
• Prevailing for our clients’ primary interests before the U.S. Supreme Court in a case challenging a major component of EPA’s stationary source greenhouse gas regulatory program.
  
• Challenging numerous EPA rulemakings of national importance in the U.S. Court of Appeals for the D.C. Circuit, as well as in other venues—often prevailing.
  
• Counseling client on world’s largest planned carbon capture and sequestration project.

Rethink. Refine. Rediscover.

Kean Miller is home to more than 240 attorneys across Louisiana and Texas, providing legal support to the people and industries that drive the energy-belt economy. We work with Fortune 500 companies, national businesses, and local enterprises, delivering practical guidance and efficient legal services with a consistent focus on value and cost awareness. Whether in courtrooms or boardrooms, our attorneys develop thoughtful strategies designed to support our clients’ business goals.

Kean Miller is a trusted resource for clients in the energy and petrochemical sectors throughout the energy belt region. Our work spans upstream, midstream, and downstream operations, as well as the businesses and service providers that support these activities.

Over time, our practice has expanded to address a wide range of legal needs across industries such as maritime, construction, manufacturing, tax, hospitality, financial services, and healthcare. We assist businesses and individuals in navigating legal challenges with an approach focused on long-term stability and informed decision-making.

At Kean Miller, our attorneys are collaborative, accessible, and engaged with both clients and the communities we serve. A shared commitment to integrity, professionalism, and client-focused service has shaped our culture and continues to define the Kean Miller experience.

We are committed to being available when our clients need us. Through preparation and responsiveness, we aim to address issues promptly with clear strategies and practical solutions, even when matters arise unexpectedly.

Clients often point to the value Kean Miller brings as an important factor in their continued success. Our attorneys pair legal insight with business-minded thinking, remaining attentive to each client’s objectives and financial considerations.

We believe diverse teams contribute to sound judgment and effective problem-solving. Our inclusive culture draws professionals with a broad range of backgrounds and perspectives, resulting in one of the higher percentages of women attorneys and partners among large law firms, along with meaningful representation of minority attorneys.

Kean Miller is committed to building lasting relationships within the firm and with our clients. Through thoughtful recruitment, collaboration, and a strong internal culture, we work to ensure continuity of service and support for clients across generations.

Kelly Hart & Hallman has been a trusted provider of comprehensive legal services to some of the most innovative and successful businesses, individuals, and governmental entities in the country for over four decades. Our exceptional lawyers and exceptional clients have been instrumental in our continued success. Kelly Hart & Hallman LLP, also known as Kelly Hart, is a leading business-to-business law firm offering a wide range of legal services. With a team of more than 160 attorneys specializing in over 20 substantive areas of the law, we deliver creative and strategic legal solutions to address our clients’ most intricate business challenges.

Our esteemed client base includes Fortune 500 companies, financial institutions, individuals, foundations, investor groups, and governmental entities, all of whom rely on us for their legal needs. Our extensive areas of practice encompass administrative law, appellate law, aviation law, banking and finance law, business reorganization and bankruptcy law, corporate and securities law, energy law, environmental law, estate planning and probate, government enforcement and investigation, health care law, intellectual property and technology law, labor and employment law, litigation, nonprofit organizations, oil and gas/energy law, public finance law, real estate law, tax law, transportation law, and water law.

At Kelly Hart, we are committed to delivering exceptional legal representation and value to our clients, utilizing our depth of knowledge and experience across various legal disciplines.

As one of the first environmental law firms founded in Texas 35 years ago, Lloyd Gosselink has continually evolved to meet our clients’ ever-changing and expanding demands in new areas of expertise. Our original core practices in environmental and utility law have grown to include practices in litigation, employment law and business transactions, with a long history of serving governmental clients throughout Texas.

Despite our growth, Lloyd Gosselink has never strayed from our founding mission of  delivering top-quality, cost-effective legal representation and working with our clients to develop innovative solutions to legal problems, while maintaining the highest professional standards. We are committed to our clients and their success. We work to gain an in-depth understanding of our clients and their business so we can provide practical counsel while offering creative solutions to their challenges. We have the depth of knowledge and talent necessary to provide clients with the kind of responsiveness and long-term continuity that earns their trust and loyalty.

Lloyd Gosselink was founded on the principle of teamwork that draws on the talents of everyone—professionals and support staff—to exceed our clients’ expectations. The result is a team-oriented culture that sets Lloyd Gosselink apart in the legal community. The Firm’s growing practice continues to attract top quality lawyers with real world experience. Our lawyers are highly recognized in their fields and are widely sought-after speakers. Our Firm has been selected in 2012-2019 as one of the 100 Best Companies to Work for in Texas.

McDermott Will & Schulte is an international law firm serving businesses, institutions and individuals across a wide range of legal matters. With offices throughout the United States and Europe, including Chicago, New York, London, Paris, Frankfurt and Washington, D.C., the firm advises clients on complex transactions, regulatory concerns, litigation and industry-specific challenges. Since first earning attorney recognition in 1983, the firm has continued to build a broad legal practice shaped by changing markets and evolving client needs.

The firm is known for its work in corporate law, mergers and acquisitions, banking and finance, tax law, health care law, intellectual property and high-stakes litigation. Its attorneys also counsel clients in emerging areas such as artificial intelligence law, fintech, privacy and data security, biotechnology and life sciences. McDermott Will & Schulte represents clients ranging from growing companies to multinational organizations, helping them navigate business decisions, disputes and regulatory matters with practical legal guidance.

McDermott Will & Schulte has earned recognition across numerous practice areas in Best Law Firms rankings, including bankruptcy and restructuring, employment law, real estate law, securities regulation, patent law, antitrust law and international trade and finance law. The firm also has 357 lawyers recognized by Best Lawyers, reflecting peer-reviewed acknowledgment across a broad range of legal disciplines.

Clients turn to McDermott Will & Schulte for counsel that is strategic, business-minded and tailored to the industries they serve. Whether handling cross-border transactions, intellectual property disputes, health care compliance or complex commercial litigation, the firm focuses on delivering clear legal solutions that align with each client’s long-term objectives.

McDowell Rackner Gibson is nationally ranked by U.S. News in Energy Law. In Oregon, the firm is highly ranked in Administrative, Regulatory, and Energy law. Our attorneys are acknowledged locally and nationally for their work in Energy, Environmental, Telecommunications, and Administrative Law.

We follow a client-centered approach grounded in a clear understanding of each client’s needs and objectives. We draw on our experience, skills, and familiarity with regulated industries to deliver practical legal guidance. We also focus on working efficiently to help clients pursue their goals while remaining mindful of costs.

At Taft, we work together across offices and practice areas to help clients address legal and business challenges efficiently and strategically. Our attorneys focus on practical solutions designed to support clients’ goals, whether they are managing day-to-day operations, navigating complex transactions, or resolving disputes.

With more than 1,250 attorneys, Taft serves clients from offices in Chicago, Illinois; Cincinnati, Cleveland, Columbus, Dayton, and Delaware, Ohio; Aspen, Denver, and Colorado Springs, Colorado; Detroit and Southfield, Michigan; Minneapolis, Minnesota; Indianapolis, Indiana; Covington, Kentucky; Phoenix, Arizona; Stuart and West Palm Beach, Florida; Atlanta, Georgia; and Washington, D.C.

Taft represents individuals, privately held businesses, public companies, nonprofits, and institutions across established and emerging industries throughout the United States and internationally.

The firm advises clients in a broad range of practice areas, including:

• Business
• Bankruptcy and Restructuring
• Employment and Labor Relations
• Energy
• Environmental
• Health Care
• Intellectual Property
• Lending and Finance
• Litigation
• Private Client
• Real Estate
• Tax

Since 1885, Taft has remained focused on delivering responsive legal counsel and client service tailored to the needs of businesses, organizations, and individuals.

Affiliated Businesses

Taft attorneys regularly collaborate with affiliated businesses to provide clients with additional consulting and advisory services in a variety of industries and operational areas. These affiliated businesses include:

• Ginovus
• Taft Advisors LLC
• Taft Business Consulting
• Taft Infrastructure Advisors

Through these organizations, clients have access to consulting services related to planning, forecasting, government relations, infrastructure, and public policy matters.

Awards and Honors

Taft and its attorneys have received recognition from legal industry publications and ranking organizations, including:

Main Areas of Practice:

Business: Taft represents public, private, and nonprofit clients in industries including banking, construction, finance, health care, insurance, manufacturing, private equity, real estate, retail, transportation, and utilities. The firm advises clients ranging from emerging businesses to Fortune 500 companies on local, national, and cross-border matters.

Bankruptcy and Restructuring: The firm represents debtors, lenders, creditors’ committees, trustees, suppliers, developers, landlords, buyers, sellers, and other parties in restructuring matters, insolvency proceedings, transactions, and related litigation across multiple industries.

Employment and Labor Relations: Taft advises employers on labor and employment matters, including workplace policies, litigation, labor relations, employee benefits and ERISA compliance, workplace safety, immigration matters, and workers’ compensation issues.

Energy: The firm represents energy providers, utilities, developers, independent power producers, transmission companies, and other participants in the energy sector on regulatory, transactional, and operational matters.

Environmental: Taft handles environmental litigation, regulatory compliance, enforcement matters, environmental due diligence, toxic tort claims, Superfund matters, Brownfields redevelopment, and administrative proceedings before state and federal agencies.

Health Care: The firm advises hospitals, physicians, health systems, research institutions, and medical device, biotechnology, and pharmaceutical companies on business, regulatory, reimbursement, litigation, employment, and compliance matters.

Intellectual Property: Taft counsels clients on patents, trademarks, copyrights, trade secrets, licensing, and intellectual property litigation, including matters involving pharmaceuticals, life sciences, software, and internet-related technologies.

Lending and Finance: The firm represents lenders and borrowers in a wide range of financing transactions, including asset-based lending, acquisition finance, mezzanine financing, real estate finance, equipment leasing, regulatory compliance, and consumer financial services matters.

Litigation: Taft represents clients in state and federal courts, arbitration proceedings, and regulatory matters involving commercial disputes, antitrust, bankruptcy, construction, environmental claims, intellectual property, securities, product liability, white collar defense, and other complex litigation matters.

Private Client: The firm advises individuals, families, and business owners on estate planning, wealth transfer strategies, succession planning, trusts and estates, charitable planning, and tax-related matters.

Real Estate: Taft represents clients in matters involving acquisitions, dispositions, financing, leasing, development, land use, construction, property management, and real estate litigation.

Tax: The firm advises corporations, financial institutions, nonprofit organizations, joint ventures, and individuals on tax planning, employee benefits, executive compensation, mergers and acquisitions, international tax matters, state and local taxation, and tax controversy matters.

LEGAL EXCELLENCE. DEDICATION TO CLIENTS. COMMITMENT TO PUBLIC SERVICE.

WilmerHale is a leading, full-service international law firm with more than 1,100 lawyers located throughout 12 offices in the United States and Europe. Our lawyers work at the intersection of government, technology and business, and we remain committed to our guiding principles of:

-providing quality, world-class legal and client services;

-fostering an environment that promotes an entrepreneurial spirit, collaboration and collegiality by drawing on the exceptional talents and varied experience of our lawyers;

-providing all of our attorneys and business professionals with the opportunity to succeed;

-encouraging lawyers and business professionals to perform public service and give back to the community through pro bono work, government service, service to the bar, teaching, and supporting public institutions and charitable organizations;

-and hiring and retaining exceptionally talented lawyers who possess the common trait of outstanding academic and personal achievements.

Learn more about us at wilmerhale.com.