CTV Elk Hills A1-A2

The Carbon TerraVault I (CTV I) project, led by California Resources Corporation through its subsidiary Carbon TerraVault 1 LLC, is located in the Elk Hills Oil Field, Kern County, California. It will repurpose two existing wells to inject 0.25–0.75 million tonnes of CO₂ annually for up to 15 years, with a total storage capacity of 8–10 million tonnes. The CO₂ will be sourced from nearby emitters, including the Elk Hills natural gas power plant and renewable fuels facilities, and injected into the Monterey Formation A1-A2 sands at depths of around 8,500 feet. The A1-A2 sands are overlain by the Reef Ridge Shale, a thick and regionally extensive confining unit that has sealed hydrocarbons for millions of years. The Elk Hills site benefits from decades of geologic data, reservoir development, and injection history, confirming injectivity and long-term containment. This makes CTV I one of the first Class VI projects in California positioned to provide secure, commercial-scale storage.