Arnold & Porter

Arnold & Porter represents major players across the oil, gas, LNG, and petrochemical sectors, advising upstream, midstream, and downstream businesses, oilfield service companies, private equity firms, and other stakeholders on a broad spectrum of complex litigation. The team handles cases involving breach of contract, pipeline, and plant delivery interruptions, personal injury claims, green energy disputes, and matters tied to power plants, petrochemical facilities, refineries, and offshore drilling. With offices in key global oil and gas hubs, the firm is well-positioned to manage industry challenges worldwide. The practice is co-led by D.C.-based Kenneth Chernof and New York-based James Herschlein, with Christopher Odell heading the Houston office, focusing on energy and transportation litigation. Houston-based Thomas Kruse brings veteran trial expertise in energy disputes, while Houston-based Katherine Ginzburg Treistman focuses on high-stakes commercial litigation. Denver-based Colin O’Brien handles federal, state, and arbitration matters, and Houston-based Ryan Hartman leverages his BP executive background in complex energy cases.