Pineywoods CCS Hub

The Pineywoods CCS Hub, developed by Pineywoods CCS, LLC (an affiliate of Tenaska, Inc.), is a large-scale CO₂ storage project located in Liberty and Hardin Counties, Texas, between the towns of Daisetta and Sour Lake. The hub’s Area of Review spans ~70,400 acres (110 square miles), and the project plans to drill four injection wells (PW-1 through PW-4) along with multiple monitoring wells (in-zone, above-zone, and groundwater). Injection will target the Lower Frio Formation, a thick Oligocene sandstone with porosity of 20–35% and permeability up to >3,000 mD, overlain by the Anahuac Formation shale as the primary seal and additional Miocene shales as secondary confining zones. The hub is designed to initially inject up to 5 million metric tons (MMT) of CO₂ per year for 30 years, equivalent to a total storage capacity of ~150 MMT, with expansion potential to handle up to 18 MMT per year from regional industrial emitters such as power plants, hydrogen facilities, gas processing, refineries, and petrochemical complexes.