Louisiana Energy, Oil & Gas Lawyers

John M. Madison, Jr. was a founding member of Wiener, Weiss & Madison and has practiced law continually with the firm since 1975. His practice includes commercial litigation, construction law, oil and gas law, with emphasis on representation of mineral owners, business law and employment law. His experience ranges from the representation of the owners of small businesses to national corporations.

Pam Mascari is a partner in the Baton Rouge office of Kean Miller. She joined the firm in 1997 and practices in the litigation, toxic tort and pipeline defense group. She represents clients in general litigation, oil and gas litigation, intrastate pipeline regulatory matters, environmental litigation, products liability cases, complex pharmaceutical drug litigation, and state and local tax litigation. Pam has extensive experience in the Louisiana energy, petrochemical and manufacturing industry and advises clients with regard to litigation strategy and management in Louisiana courts and regulatory matters before the Louisiana Office of Conservation. Pam also has extensive experience handling complex...

I've been a trial lawyer for 23 years and my focus is on criminal defense with a heavy practice areas in OWI/DWI/OUI, Drug Related Arrest, Battery, Internet Crimes, and Domestic cases. On the civil side, my practice involves personal injury cases, workers compensation cases, and complex oil field litigation. I was recently awarded membership in the American Association of Premier DUI/OWI Attorneys and USAttorneys.com/Louisiana/Lafayette Parish. I love fighting for my clients even if it gets dirty!

Russell Dickson is an associate with Wiener, Weiss & Madison. He practices in the areas of Business law, Oil & Gas Law, Real Estate Law, Probate and Succession Administration, and Commercial Litigation. At the firm, he has experience in litigation and transactional work representing landowners and business owners in Northwest Louisiana.

Alan Berteau is a partner in the Baton Rouge office of Kean Miller. He joined the firm in 1995 and practices in the legacy and commercial litigation defense groups. He represents clients in complex and class action litigation matters involving damage claims relating to oil and gas exploration and production operations, commercial disputes, chemical exposure claims, and industrial accidents.

Alan has particular experience representing clients in class action and mass tort cases involving, long-term exposure and groundwater or soil contamination, air releases, and in the use of computer technology, including mapping and litigation support software, in the management and prosecution of...

Julie Silbert is special counsel in the New Orleans office of Kean Miller. She joined the firm in 1994 and practices in the environmental law and commercial litigation groups. Julie has extensive experience in the Louisiana energy, petrochemical and manufacturing industry and works with clients regarding litigation strategy and litigation management. She has experience in litigation involving complex commercial matters, casualty, toxic mold, NORM litigation, and environmental contamination.

Julie earned her B.A., summa cum laude, from Tulane University. She earned her J.D., cum laude, from Tulane University Law School in 1984. Julie was a recipient of a Thomas J. Watson Fellowship...

Troy Charpentier is a dedicated and experienced Louisiana Attorney. He joined Kean Miller in 1996, where he works with the Litigation Group in the Baton Rouge office. Troy has successfully represented local, regional and national clients in an array of legal disputes. His practice areas include General Commercial Litigation such as Contract Claims, Lease Disputes and Landlord/Tenant matters. Additionally, Troy advocates for clients with Pipeline Permitting and Incident Response before the Department of Natural Resources. He has extensive experience in Pipeline Expropriation projects. Troy is committed to providing outstanding service and the best possible outcomes.

Troy received a B.A. from Louisiana...

Claire Juneau is a partner in the New Orleans office of Kean Miller. She joined the firm in 2011 and practices in the litigation group, including energy and petrochemical, oil field legacy sites, and appeals.

Prior to joining the firm, Claire served as a Law Clerk to Supreme Court Associate Justice Jeffery Victory. She also served as a judicial intern to First Circuit Court of Appeal Judge Randolph Parro.

Claire received her B.A., summa cum laude, in 2007 from Louisiana State University. Claire received her J.D., magna cum laude, in 2010 from the LSU Law Center where she was a member of...

Richard McConnell is a partner in the Baton Rouge office of Kean Miller. He is trial counsel for energy and financial companies in high stakes lawsuits involving a wide variety of claims. Prior cases involved soil and groundwater contamination, wetlands loss, toxic tort exposure, lost mineral leasing opportunities, mineral lease cancellation, pipeline right-of-way claims, expropriation/condemnation, and commercial litigation. Richard also serves as appellate counsel arguing before state and federal appellate courts.

Richard’s recent experience includes obtaining a successful verdict as trial counsel for national pipeline companies in a wetlands loss lawsuit involving canals that widened over time, he was lead...

Randy Cangelosi is a partner in the Baton Rouge office of Kean Miller. He practices in the litigation group. Randy represents clients in complex products liability, general litigation, commercial and business litigation, environmental litigation, healthcare issues and related business disputes, medical malpractice defense, telecommunications law and litigation, trademark and intellectual property claims, and personal injury defense. He has trial experience in products liability defense and large commercial litigation matters. He also has experience in NORM, TERM and asbestos cases in the energy industry. Randy also has served client's needs on a national level, obtaining various admissions to the bar in...

Patrick Roquemore is an associate attorney in the Baton Rouge office of Kean Miller. He joined the firm in 2005 and practices in the litigation, energy, legacy oil field site, and oil & gas groups. Prior to joining Kean Miller, Patrick was a judicial law clerk for the Twenty-third Judicial District Court for the Parishes of Ascension, Assumption, and St. James. He also served as an attorney for the Louisiana Court of Appeal, First Circuit (Criminal Division). Patrick has extensive experience in all aspects of legal research, including the drafting of opinions, jury instructions, and participating in and assisting in...

Seth Moyers is a shareholder with Wiener, Weiss & Madison. He joined the firm in 2009 and practices primarily in the areas of collections, bankruptcies, and other commercial litigation. Seth has represented both commercial and individual creditors throughout the collections process, including settlements and judicial collection proceedings in both Louisiana State Courts and United States Bankruptcy Courts.

Christopher L. Williams focuses his practice on complex employment litigation, including cases involving violations of wage-and-hour laws, employment discrimination, sexual harassment, retaliation, unpaid wages, breach of contract, whistleblower claims, and non-compete issues. After working for some of the nation’s largest labor-and-employment law firms, he opened his own practice in 2014 to concentrate on protecting the rights of workers and employees. Mr. Williams draws on his previous experience representing employers to provide legal advice to individuals regarding potential claims and legal remedies under state and federal employment laws. Mr. Williams has litigated a wide variety of employment issues in...

Melissa Hemmans is an experienced Litigation Attorney in Kean Millers's Baton Rouge office. Her practice includes Petrochemical, Manufacturing, Municipal, Civil Rights Defense, Oil and Gas, and Local Business matters. She has extensive experience with cases involving Toxic Tort and Environmental claims. Melissa is dedicated to providing clients with creative solutions, unique strategies, and unparalleled value.

In 1996, Melissa received her B.A. from Louisiana State University. She obtained her J.D. from the LSU Law Center in 1999. Melissa is admitted to practice law in the State of Louisiana, United States Court of Appeals, Fifth Circuit, United States District Courts for the Eastern,...

Don Wiener is of counsel for the firm of Wiener, Weiss & Madison. He has more than 25 years of experience in commercial transactions, including corporate, oil and gas law, real estate, commercial lending, title insurance and probate.

Kimberly Hymel is an attorney in the Baton Rouge office of Kean Miller. She joined the firm in 2004 and practices in the energy, oil and gas, pipeline and commercial litigation groups. Kimberly represents national and international energy and petrochemical clients in a wide variety of litigation, with particular experience in environmental property damage cases, commercial contractual disputes, and toxic tort litigation. She has also worked extensively on electronic discovery issues, including management of large-scale discovery efforts for multi-national companies and advising clients regarding development and implementation of workable strategies, procedures, and discovery software tools for the collection, review, and...

Anna O'Neal is a shareholder with Wiener, Weiss & Madison. She joined the firm in 2017 and practices in the areas of commercial litigation and oil, gas and natural resources. Prior to joining the firm, Anna's practice focused on mineral and property law matters. She also has experience advising on natural gas midstream pipeline issues, political subdivision governance, and zoning and land use matters.