Overview

Stacey Neumann Vu is a trial attorney who represents and advises clients in complex commercial litigation and appeals, including consumer class action and multi-district litigation defense and disputes over corporate governance and fiduciary obligations. In her twenty years at V&E, Stacey has secured numerous significant pretrial dismissals on the pleadings. She frequently argues as lead courtroom counsel, winning favorable decisions on dispositive motions and motions to compel arbitration after oral argument at both the trial and appellate court levels. Stacey’s clients include corporate directors and officers, Fortune 500 corporations, and other major companies in the petrochemical, petroleum, utilities, insurance, grocery, agriculture, and health care industries.

Experience

  • MDL tort claims against private equity investors: Obtained ruling on mandamus that plaintiffs failed to plead a viable negligent-undertaking claim against private equity investors in suit arising out of explosions on a portfolio company’s premises, resulting in dismissal of all claims against investors

  • Winter Storm Uri MDL: Representing transmission and distribution utility in multiple cases involving claims of wrongful death and property damage arising out of the February 2021 Texas winter storm; obtained dismissal on the pleadings of tortious interference, negligence, nuisance, and conspiracy claims in bellwether cases

  • User fee litigation: Defended local government entity against oil companies’ challenge to user fees assessed under the Water Resources Development Act to fund harbor improvement project; successfully argued motion to dismiss involving statutory issues of first impression; dismissal was upheld in a seminal Fifth Circuit decision construing the Act, allowing harbor improvement to proceed with full funding

  • Pharmacy “U&C” Class Action: Defended a regional pharmacy in a putative class action alleging the pharmacy had deceptively overcharged patients under “usual and customary” pricing rules, allegedly affecting more than $1 billion in patient copayments; teamed with other V&E attorneys to defeat the claims on summary judgment and moot the plaintiff’s class certification effort

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Credentials

Education

  • Columbia University, J.D., 2004 (Articles Editor, Columbia Law Review; Harlan Fiske Stone Scholar; Olin Law and Economics Junior Fellow)
  • Rice University, B.A. cum laude, 1999

Admissions

  • Texas
  • U.S. Court of Appeals for the Fifth Circuit
  • U.S. District Courts for the Southern, Northern, Western, and Eastern Districts of Texas

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Recognitions

  • The Best Lawyers in America© (BL Rankings, LLC), Commercial Litigation (Houston), 2023–2027
  • Selected to the Texas Super Lawyers list, Super Lawyers (Thomson Reuters), 2022–2025
  • Selected to the Texas Rising Stars list, Super Lawyers (Thomson Reuters), 2009–2010 and 2014–2016
  • Legal 500 U.S., Antitrust: Civil Litigation/Class Actions: Defense, 2020 and 2021; Dispute Resolution: General Commercial Disputes, 2023 and 2025; Energy: Energy Litigation: Electric Power, 2026
Insights

Client Alerts

2025 Energy & Chemicals Antitrust Report

Vinson & Elkins’ 2025 Energy & Chemicals Antitrust Report details how antitrust enforcement under the second Trump administration has shifted …

January 13, 2026 • 

January 13, 2026 • 1-minute read

Client Alerts

2024 Chemicals & Energy Antitrust Report

Vinson & Elkins’ 2024 Chemicals & Energy Antitrust Report details the antitrust approach expected under the upcoming Trump administration, with a focus on boosting oil and gas production.

January 16, 2025 • V&E Antitrust Update

January 16, 2025 • 1-minute read

2024 Chemicals & Energy Antitrust Report

Event Recaps

Vinson & Elkins Antitrust Conference Recap: Essential Insights for In-House Lawyers

Vinson & Elkins’ recent Antitrust Conferences, held in Houston and Dallas, provided a comprehensive platform for in-house legal teams to understand and navigate the complexities of antitrust law.

September 27, 2024

September 27, 2024 • 1-minute read

Client Alerts

2023 Chemicals & Energy Antitrust Report

For companies in the energy and chemical sectors, the potential for antitrust scrutiny is an ever-present concern. The next round of enforcement inquiries is never further away than the next jump in commodity prices or the next consolidation wave. Especially under an enforcement-minded administration, companies should stay focused on timely transaction planning and routine compliance efforts to manage their antitrust-related risks.

January 11, 2024

January 11, 2024 • 1-minute read

Client Alerts

Implications of a Texas Supreme Court Ruling Confirming Customary Investment Practices for Private Equity Sponsors

On June 23, 2023, the Texas Supreme Court issued a decision embracing the rule that an investor can engage in customary investment practices without becoming liable for torts committed by a portfolio company.

June 29, 2023 • V&E Corporate Update

June 29, 2023 • 2-minute read

AOL - Texas Property Tax Disputes(1)
News & Achievements