Roll Call notes that in “a complexity of ironies, the shale industry is looking for more of a greenhouse gas to improve production from fractured wells.”  

“The boom that has extended U.S. reliance on gas may also provide a means of continuing coal use. Demand for carbon dioxide is a key aspect of the marketability of sequestration technologies, which will be needed to meet proposed EPA standards for new coal power plants.”  

“Oil industry has been using liquefied carbon dioxide for years to enhance recovery from conventional wells and now producers are looking to use it to get more out of shale wells… For various reasons, other tricks producers use on traditional wells don’t work in shale, leaving about 95 percent of oil in the formation.”