Campo Viejo Gas Processing Plant Carbon Capture

The Campo Viejo project is an operational carbon storage and acid gas injection system supporting Stakeholder Gas Services’ natural gas processing facility in Yoakum County, Texas. The project captures CO₂ and hydrogen sulfide removed during gas treating and injects the treated acid gas stream into deep saline carbonate formations within the Permian Basin. Injection occurs through two Class II permitted wells, Pozo Acido Viejo No. 1 and Estacado No. 1, targeting the Siluro-Devonian Fasken Formation at depths around 12,000 to 12,700 feet,. Operations began in March 2019, with more than 143,000 metric tons of CO₂ injected by 2024. The facility is currently injecting an average of 2.7 MMscf per day of treated acid gas, with plans to ramp capacity to nearly 40 MMscf per day combined across both wells. Over the planned 25-year injection period, the project is designed to permanently store CO₂ produced from regional sour gas processing while supporting flaring reduction and emissions compliance across West Texas and eastern New Mexico gas fields. The storage system is supported by a thick, low-permeability Woodford Shale caprock and underlying Montoya Formation, providing vertical containment.