Sydney St. Pierre represents energy industry clients in complex, high-stakes energy and environmental litigation in state and federal courts. Working with Kean Miller litigation teams, she brings rigorous legal research, careful case management, and sound judgment to every phase of a matter, positioning each case for the best possible outcome.
Sydney serves a wide range of clients, from Fortune 10 global corporations to privately held businesses based in Louisiana and Texas. Clients and colleagues value that she is personable, accessible, detail-oriented, dedicated, and consistently going above and beyond to research and prepare cases for a favorable outcome, whether in or out of court. A collaborative advocate, she works closely with clients to identify and manage the legal risks inherent in energy and environmental lawsuits.
Born and raised in the South, Sydney combines a firsthand understanding of the Louisiana energy industry with substantive legal knowledge. Efficient, practical, and versatile, she focuses on protecting her clients’ bottom line at every stage of case development.
Sydney worked as Associate General Counsel for a Louisiana-based, privately held regional construction company. That in-house experience gives her a firsthand understanding of the business pressures, budgets, and risk tolerances her clients manage every day, and it informs the practical, business-minded counsel she provides.
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LSU Law Center, J.D./D.C.L., cum laude, 2021
- Co-Chair, Academic Committee
- Mentor, Student Bar Association
- Ambassador, LSU Law
- Academic Tutor, Legal Research and Writing
- Research Assistant, Family Law, Property Law, Matrimonial Regimes
- Recipient, CALI Award (Immigration Law)
- Member, Phi Alpha Delta Law Fraternity
- Member, Women Law Student Association
- Member, Student Animal Legal Defense Fund
- Member, Christian Legal Society
- Member, Cornerstones
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LSU, B.A., Psychology, 2019
- Member, LSU Collegiate National Honor Society
- Member, Phi Alpha Delta
- Social Media Chair, International Law Fraternity
- Class Tutor, Psychology
- LSU Student Notetaker
- Member, Christ the King
- Member, Academic Committee & Tutor, Songfest & Step Show Team, Phi Mu Fraternity
- Recipient, Adam Tabary Dows Memorial Scholarship
Bar Admissions
- Louisiana
Courts
- U.S. District Court for the Eastern District of Louisiana
- U.S. District Court for the Middle District of Louisiana
- U.S. District Court for the Western District of Louisiana
- U.S. Court of Appeals, Fifth Circuit
- Louisiana Supreme Court
- All Louisiana State Courts
- “Ones to Watch,” The Best Lawyers in America, 2026