Louisiana Environmental Lawyers

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...

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...

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.

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...

Robert Killeen was born in New Orleans, Louisiana, in 1962. He attended Tulane University in New Orleans where he received a Bachelor of Arts degree in History in 1984, and a Juris Doctor in 1987. Mr. Killeen was admitted to the Louisiana Bar in 1987, and the Texas Bar in 1990. He is also admitted to practice before the United States Court of Appeals for the Fifth Circuit, United States Court of Federal Claims, United States District Courts for the Southern, Eastern, Northern and Western Districts of Texas, and United States District Courts for the Western, Middle and Eastern Districts...

John Heinrich is Of Counsel to the Baton Rouge office of Kean Miller. He joined the firm in 2000 and practices in the litigation group. John represents clients in commercial litigation, products liability, chemical exposure claims, personal injury defense, medical malpractice defense, toxic tort defense, ERISA, and OSHA matters. John has litigated cases not only in Louisiana but in 14 other states in both state and federal forums.

John earned his B.A. from Louisiana State University in 1973. He earned his J.D. in 1987 from the LSU Law Center where he was a member of the Phi Kappa Phi and Order...

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,...

Jeff’s practice includes representing major international oil and gas companies in a broad range of high-stakes lawsuits, primarily involving allegations that soil, sediment, groundwater, drinking water, and other types of environmental contamination were caused by oil and gas exploration and production activities. He has extensive experience drafting motions and briefs in federal and state courts at both the trial and appellate levels.

Prior to joining the firm in 2016, Jeff served as a law clerk for the Honorable Carl J. Barbier, of the United States District Court for the Eastern District of Louisiana, where he assisted in the disposition of numerous...

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...