More bullish projections for the potential role of carbon capture and storage (CCS) to support global decarbonization are not coming to fruition, but Exxon Mobil is unfazed. The US major's significant existing acumen in CCS and proactive move to sweep up existing US CO2 infrastructure giant Denbury in 2023 have laid the groundwork for it to build out a unique CCS-as-a-service business managing third-party CO2 emissions from multiple customers. Initial efforts have run into the myriad hiccups expected when developing a nascent business dependent on new permitting and regulatory structures, and on projects being advanced in an inflationary cost environment. Yet Exxon recently reaffirmed plans to more than triple its CO2 under contract by 2030 to an industry-leading 30 million tons per year.