Patterson-UTI Signs Multi-Year Agreement To Lease Two Rigs To Archer For Argentina's Vaca Muerta Field

PATTERSON-UTI ENERGY, INC. ("Patterson-UTI" or "the Company") today announced a multi-year agreement to lease two high-spec APEX 1500 drilling rigs to DLS Archer Ltd. S.A ("Archer"), a division of Archer Ltd. The rigs will support Archer's operations in Argentina's Vaca Muerta formation as part of its seven-rig contract with YPF S.A. ("YPF") that was announced in December 2025. The rigs will be provided from Patterson-UTI's existing U.S. fleet, and Archer will be responsible for all preparation, upgrade and mobilization costs. The rigs are expected to commence operations by mid-2026.

"We are excited to expand our international presence and support Archer and YPF by providing the APEX 1500 rigs for drilling in Argentina's Vaca Muerta basin," said Mike Holcomb, Patterson-UTI's Chief Operating Officer. "Our existing fleet of high-quality assets is well-suited to meet the region's growing demand for unconventional drilling, and this agreement marks a significant step in our disciplined approach to expanding our international footprint. The expansion complements our established position in drilling products, including Ulterra drill bits, in Argentina."

About Patterson-UTI
Patterson-UTI is a leading provider of drilling and completion services to oil and natural gas exploration and production companies in the United States and other select countries, including contract drilling services, integrated well completion services and directional drilling services in the United States, and specialized drill bit solutions in the United States, Middle East and many other regions around the world. For more information, visit www.patenergy.com.