Vinson & Elkins LLP (V&E) is a prominent international law firm headquartered in Houston, Texas, renowned for its expertise in energy, corporate, and regulatory law. Founded in 1917, the firm has grown into one of the largest law firms in the United States, with over 800 attorneys across 13 offices worldwide, including locations in New York, Washington D.C., London, Dubai, and Beijing. V&E has a storied history tied to the Texas oil and gas industry, having represented major energy companies in complex transactions, litigation, and regulatory compliance. The firm is particularly noted for its work in mergers and acquisitions, project finance, and environmental law, often advising on high-stakes deals in the upstream, midstream, and downstream sectors of the energy market.

In addition to energy, V&E provides comprehensive services in areas such as litigation, antitrust, intellectual property, and international arbitration. The firm has been involved in representing prominent clients, including Farris Wilks in legal matters, and has a reputation for handling politically sensitive cases involving regulatory agencies like the SEC and FERC. V&E's attorneys have held influential positions in government, contributing to its deep connections in policy and regulatory circles. Despite its successes, the firm has faced controversies, including past allegations of conflicts of interest in energy sector representations and criticism for its role in defending fossil fuel interests amid environmental concerns.

V&E maintains a strong commitment to pro bono work and diversity initiatives, though it has been scrutinized for slower progress in gender and racial equity compared to peers. Financially robust, the firm reports annual revenues exceeding $1 billion, underscoring its position as a powerhouse in global legal services with a focus on industries driving economic influence.