The article delves into the evolving role of Enhanced Oil Recovery (EOR) techniques in the context of reducing carbon emissions through Carbon Capture and Storage (CCS) initiatives. Historically used in oil production, EOR methods are now being harnessed to enhance oil mobility and store carbon dioxide underground effectively. In the United States, major oil companies are actively engaging in CCS for EOR, aligning with government policies that support oil and gas production. Similarly, South Korea is emphasizing CCS as a crucial component of its 2030 Nationally Determined Contributions (NDC) goal for greenhouse gas reduction. While the country currently relies on overseas CCS projects, the Boryeong Blue Hydrogen Project signifies a domestic effort to produce blue hydrogen and sequester carbon dioxide. Challenges such as legal hurdles and storage costs have emerged, prompting the exploration of CCS solutions within Korean territory and waters. The KNOC's Gwanggaeto Project exemplifies this approach, aiming to establish CCS sites and explore natural gas deposits. One of the project's focal points, the Great Whale Project, has stirred political discussions regarding the balance between energy exploration and future CCS infrastructure. Despite debates, the article emphasizes the importance of viewing such projects within a broader CCS strategy, highlighting the potential for repurposing extraction sites as CCS facilities in the pursuit of carbon neutrality.