The real rationale is a few paragraphs down: > "For now, Denbury’s pipeline network isn’t really low carbon, but instead will function as an extension of Exxon

The real rationale is a few paragraphs down: > "For now, Denbury’s pipeline network isn’t really low carbon, but instead will function as an extension of Exxon’s normal oil business. Today the CO2 carried in the pipelines is used for “enhanced oil recovery,” a process in which it is injected into oil wells to push out the last few drops." All the DOE-funded 'clean coal' and similar CCS schemes were all conveniently set up near end-of-life oilfields, and whatever CO2 they produced was used to help get the last few barrels out. Of course the CO2 is carrying the oil so it's mostly lost to the atmosphere during the processing/refining stage. Carbon capture and storage from fossil fuels has been nothing but a massive fraud; capturing and burying 100% of the carbon from coal would take significantly more energy than you can get from burning that amount of coal. Notably, data about this key ration (energy cost per ton of buried carbon vs. energy cost from burning the source fuel) is hidden on the private side of DOE public-private partnerships and can't be accessed by the public, even by FOIA requests. CCS is literally one of the biggest scientific frauds perpetrated on the public in the history of the DOE.