Gibson Dunn Secures Multi-Billion Dollar Victory for Luminant Energy in Winter Storm Uri Litigation at Supreme Court of Texas
Firm News | March 27, 2026
On March 27, 2026, Gibson Dunn secured a multi-billion dollar victory on behalf of client Luminant Energy Company, LLC in the Winter Storm Uri litigation at the Supreme Court of Texas — convincing the Court to leave intact an earlier appellate victory dismissing billions of dollars in claims against the Texas generation industry in an MDL consisting of over 200 cases and 20,000 plaintiffs.
The Winter Storm Uri litigation arises out of the February 2021 winter storm that caused widespread power outages across Texas and led to hundreds of suits against participants across the ERCOT electricity market. In December 2023, a Dallas team led by partners Allyson Ho and Mike Raiff convinced the First Court of Appeals in Houston to grant multiple petitions for writs of mandamus and direct the MDL court to dismiss the tort claims against the generators on the pleadings alone.
Today, Gibson Dunn convinced the Supreme Court of Texas not to disturb that decision, affording Gibson Dunn’s generation clients (and many other generators) a total victory in a five-year litigation involving billions of dollars in exposure. In addition to Mike and Allyson, the winning team includes associates Elizabeth Kiernan, Stephen Hammer, Rebecca Roman, and Arjun Ogale.