Sectors
A woman with shoulder-length curly brown hair, wearing a dark blazer and light blouse, smiles at the camera in a brightly lit law office offering litigation support for Chicago lawyers.

Katherine M. Harrington

Partner

Katherine M. Harrington

Partner

Katie Harrington is a partner in the firm’s Commercial Litigation Department, where she focuses her practice on energy and business litigation. Katie is a trial lawyer who loves being in the courtroom and trying cases. She has first- and second-chaired trials large and small in state and federal court in Texas as well as arbitrations through various organizations. She represents clients involved in complex litigation disputes and appellate matters, primarily in commercial, oil and gas, product liability, warranty, defective services, personal injury defense, post-acquisition disputes (including earn-out payments), collection, and insurance broker errors and omissions litigation.

Katie’s energy litigation practice includes the representation of oil and gas companies that specialize in oilfield services, exploration and production, and midstream and pipeline operations, energy companies that supply natural gas, electricity, and solar, and energy companies that operate power generation plants. Her commercial litigation practice includes the representation of manufacturing companies, distributors, e-commerce aggregators, and insurance brokers. Katie has represented clients in litigation in Texas state court and in federal courts in Texas and throughout the country, as well as in arbitration before the AAA and ICC.

Katie is valued by clients for her responsiveness, strategic judgment, and practical approach to dispute resolution. She works as a true partner to her clients, offering clear recommendations while taking the time to understand their goals, concerns, and perspective before charting the best path forward. In every matter, Katie thinks proactively and strategically, anticipating challenges, evaluating risk, and keeping both the legal and business implications in mind. She is also mindful of cost and efficiency, and where appropriate, works to resolve disputes early and effectively before they escalate into more expensive litigation.

Representative Experience

  • Participated on trial team in 9-week jury trial in Texas state court defending 12 individuals accused of stealing trade secrets from former employer. Secured favorable outcome for clients that precluded a bid for $42 million in damages sought by plaintiff.
  • Represented global professional services firm accused of failing to place directors & officers insurance coverage requested by its client, which client alleged resulted coverage denial. After second-chairing  2-week bench trial in Texas state court, obtained favorable settlement for client.
  • First-chaired 1-day arbitration defending ecommerce company sued for violations of state consumer protection laws based on false and misleading advertising regarding its products. Successfully obtained favorable settlement for client following the arbitration.
  • Successfully obtained award for all damages and attorneys’ fees for exploration and production company following 1-week arbitration in pursuing breach of contract and warranty claims against supplier of defective downhole retrievable production packer that resulted in blowout of oil and gas well.
  • Represented oilfield service company accused of breaching contract with manufacturer for failing to purchase specially manufactured goods pursuant to contracts, purchase orders, and forecasts. After a 1-week arbitration, obtained favorable award for client far in excess of the amount sought by the plaintiff.
  • Successfully obtained favorable award for oilfield service company following 1-week arbitration in defending against allegations that defective cement job caused $12 million in damage to an offshore oil and gas well.
  • Represented offshore drilling contractor sued by former CEO and COO who accused client of failing to pay more than $10 million in termination benefits. After two days into the arbitration, obtained favorable settlement for client.

Awards and Recognition

  • Houston Business Journal Community Impact Award (2026)
  • National LGBTQ+ Bar Association, 40 Best LGBTQ+ Lawyers Under 40 (2024)
  • Recognized, Best Lawyers: Ones to Watch recognition for Commercial Litigation (2021 – 2024)
  • Recognized, Texas Super Lawyers® – Rising Star list in the field of Energy & Natural Resources (2019 – 2022)

Affiliations

  • Member, South Texas College of Law Houston Alumni Board of Directors (2024 – present)
  • Member, Lambda Legal Leadership Council (2025 – present)
  • Member, Board of Directors, Grace Place (2023 – 2025)
  • Member, Houston Bar Association LGBTQ Committee (2020 – present)
  • Institute for Energy Law (IEL) – 4th Annual Leadership Class (2021 – 2022)
  • Vice President of Communications, Association of Women Attorneys (2019 – 2020)
  • Member, Mayor Sylvester Turner’s LGBTQ Advisory Board (2018 – 2020)
  • Member, Houston Young Lawyers Association (2018 – 2020)
    • Co-chair, HYLA Leadership Academy (2018 – 2020)
  • Trustee, Association of Women Attorneys Foundation (2016 – 2023)
    • Marketing Chair (2020-present)
  • National LGBT Bar Association (2018 – present)
    • Membership & Diversity Committee (2020)

Presentations and Publications

  • “Petroleum Extension (PETEX) – Rig School – Overview of Macondo and Oilfield Anti-Indemnity Statutes,” (October 2019)
  • Presenter, “Speech is Silver but Silence is Golden: Anti-SLAPP Update,” Houston Bar Association 2019 Civil/Appellate Bench Bar Conference (April 2019)
April 13, 2026 In the News

Scott Ellis and Katherine Harrington Featured for Houston Community Leadership Awards

Foley & Lardner LLP partners Scott Ellis and Katherine Harrington are featured in Houston Business Journal for its inaugural Community Leadership Awards for fostering meaningful change in the community.
December 15, 2025 Honors and Awards

Foley Attorneys Honored with Houston Community Leadership Awards

Foley & Lardner LLP is pleased to announce partners Kathleen Harrington and Scott Ellis are named to the Houston Business Journal's inaugural Community Leadership Awards.
August 15, 2025 Honors and Awards

Foley Attorneys Named Finalists at The American Lawyer Industry Awards

Foley & Lardner LLP is proud to announce partners Monica Call and Katherine Harrington have been announced as finalists at The American Lawyer 2025 Industry Awards.
July 24, 2025 In the News

Foley's Trial Team Featured Following Landmark Victory in Texas Trade Secret Case

Foley & Lardner LLP’s recent landmark appellate victory in a Texas trade secrets case is featured in the Texas Lawyer article, "Ruling Sets Precedent for Employment, Trade Secrets, Fiduciary Duty."
July 21, 2025 Deals and Wins

Foley Secures Landmark Appellate Victory in Texas Trade Secret Case

Foley & Lardner LLP secured more than $2 million in attorneys’ fees and costs for its clients in a case involving issues of first impression under the Texas Uniform Trade Secrets Act (TUTSA). The decision, issued on June 26, 2025, by the Fourteenth Court of Appeals in Houston, reverses a significant trial award and shapes the legal landscape in Texas for trade secret and fiduciary duty claims.
March 14, 2024 Honors and Awards

Katherine Harrington Named Among Best Lawyers Under 40 by National LGBTQ+ Bar Association

Foley & Lardner LLP partner Katherine Harrington has been named to the National LGBTQ+ Bar Association’s Best LGBTQ+ Lawyers Under 40 list.