About

John E. Rooney is a seasoned energy attorney with more than 36 years of experience advising clients on complex legal and business matters in the energy sector. Based in Chicago, he represents clients through Sonnenschein Nath & Rosenthal LLP and the Law Offices of John E. Rooney, offering sophisticated counsel tailored to the evolving needs of energy companies and industry stakeholders. His practice is grounded in a deep understanding of the legal, regulatory, and commercial issues that shape the energy industry, making him a trusted resource for clients navigating high-stakes and highly technical matters. Throughout his career, Mr. Rooney has built a reputation for delivering practical, results-oriented guidance with a focus on helping clients manage risk, address challenges efficiently, and achieve their strategic objectives. He approaches each matter with careful attention to detail and a commitment to clear communication, working closely with clients to provide advice that is both strategic and responsive. His experience in energy law allows him to support clients facing a range of issues while maintaining a strong focus on their long-term goals. Clients turn to John E. Rooney for dependable representation, thoughtful counsel, and an attorney-client relationship built on professionalism and trust. His decades of experience and concentrated focus on energy law position him to provide knowledgeable guidance to businesses seeking an experienced attorney in Chicago and beyond.

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