Grant Energy, Oil & Gas Lawyers

Mack Gregorie is a partner in the Baton Rouge office of Kean Miller. He joined the firm in 1984 and has extensive experience in all types of business and corporate transactions, including complex commercial and industrial real estate matters and finance. Mack represents major international petrochemical clients, worldwide energy producers, banks and financial institutions, buyers and sellers, landlords and tenants, and lenders. A Certified Public Accountant, Mack lectures frequently on real estate topics such as sales, leases, property law, purchase and sale agreements, and recent developments in real estate law. He is also a title agent for First American Title...

Lou Grossman is a partner in the New Orleans office of Kean Miller and practices in the environmental litigation, energy, and appellate groups. Since being admitted to practice in 2003, he has handled complex disputes involving the energy and petrochemical industries, including toxic tort claims, environmental damage claims, and commercial litigation. In addition, Lou has handled the appeals of numerous high-profile legal issues at the trial and appellate court level. He is listed in Louisiana Super Lawyers as a Rising Star for 2013 and 2014. Lou was admitted to the Colorado Bar in 2015, and was listed as a Rising...

Carrie Tournillon is a partner in the New Orleans office of Kean Miller. She joined the firm in 2012 and practices in the utilities regulation, oil and gas, and pipeline groups. She is licensed to practice law in Louisiana and Texas, and has over twelve years of experience in administrative and public utility law.

Carrie has represented industrial manufacturing, refining and related companies before the Louisiana Public Service Commission (LPSC) and City Council of New Orleans. She has been involved in advising companies with respect to generation projects to ensure their compliance with Federal and state energy regulatory law. Carrie has...

Matt Smith is an associate in the Baton Rouge office of Kean Miller. He joined the firm in 2013 and practices in the commercial litigation, toxic tort defense, and environmental litigation groups. His work focuses on the representation of oil and gas exploration and production companies, mid-stream companies, and other industry companies in various litigation matters including property damage and contamination, property rights, and commercial and contractual disputes.

Matt has extensive experience guiding clients through claims related to soil contamination, groundwater contamination, air pollution, and the associated regulatory standards. His practice covers a wide range of commercial and litigation issues ranging...

Mr. Kingsdorf graduated from Tulane University in 1971 and from Tulane University School of Law in 1974. He clerked at the Louisiana Fourth Circuit Court of Appeal for Judges Peter Beer and Ernest N. Morial and then clerked at the Louisiana Supreme Court for Justice Albert Tate, Jr. In 1980, he became a partner in the firm of Cleveland, Barrios, Kingsdorf & Casteix where he remained until 1995 when he co-founded the firm of Barrios, Kingsdorf & Casteix, LLP. In addition to serving as faculty member at numerous seminars, he has lectured at the Tulane University School of Law...

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.

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...

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,...

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.

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...

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...

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.

Scott Zimmer is a partner in the Shreveport office of Kean Miller and practices in the commercial litigation group. He assists clients in all manner of litigation, including commercial, environmental, transportation, gaming industry litigation, and complex personal injury matters.

Scott is AV-rated by Martindale-Hubbell. He is listed in Louisiana Super Lawyers 2018 - 2019.

Scott earned his B.S. from the University of Southwestern Louisiana in 1994. He earned his J.D. from the University of Houston Law Center in 1998.