Kusnetz reported in 2020 that Exxon sells the CO2 to other companies that use it to revive depleted oil fields and has relentlessly fought EPA oversight of the practice. Southwestern Wyoming is the site one of the world’s largest carbon capture plants, a jumble of pipes, compressors and exhaust flues operated by ExxonMobil. The oil giant has long promoted its investments in carbon capture technology—a method for reducing greenhouse gas emissions—as evidence that it is addressing climate change, but it rarely discusses what happens to the carbon captured at the Shute Creek Treating Facility.
The plant’s main function is to process natural gas from a nearby deposit. But in order to purify and sell the gas, Exxon must first strip out carbon dioxide, which comprises about two-thirds of the mix of gases extracted from nearby wells. The company found a revenue stream for this otherwise useless, climate-warming byproduct: It began capturing the CO2 and selling it to other companies, which injected it into depleted oil fields to help produce more oil.
In 2008, when concerns about climate change led Congress to pass a tax credit meant to encourage companies to capture and store carbon dioxide, Exxon was presented with another way to make money from the technology. The massive amounts of carbon dioxide captured at its Wyoming facility put the oil and gas giant in a position to claim more credits under the tax break than any other company. In the ensuing years, Exxon may have claimed hundreds of millions of dollars in tax credits, according to estimates based on publicly available data from the Internal Revenue Service, the Securities and Exchange Commission, and a global think tank that tracks the technology.
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