Improving Crude Oil Tank Inventory Stock Availability Through Compact Solution Method to Ensure National Fuel Supply Security at PT Kilang Pertamina International Unit VI Balongan

PT Pertamina International Refinery Unit VI Balongan plays a crucial role in maintaining national fuel oil (BBM) and special fuel (BBK) supply resilience. However, challenges such as declining crude oil storage capacity due to tank damage and limited space threaten the continuity of refinery operations and the stability of national energy supply. This study aims to address this issue by implementing the compact solution method to enhance crude oil stock availability and secure the national fuel supply. Using a quantitative approach with descriptive methods, the research collected data through observation, document review, and literature study. The data were analyzed qualitatively to assess the impact of the compact solution method. The results indicate a significant improvement in crude oil stock availability, which increased from 60.14% (using the off-stream repair method) to 72.9%. Additionally, the tank level was successfully increased to a maximum of 13,990 mm, adhering to API 650 or API 579 FFS Level 3 standards. This improvement extends the operational lifespan of the tank to 62 years, reducing maintenance costs and ensuring uninterrupted refinery operations. The findings highlight the effectiveness of the compact solution method in addressing crude oil tank capacity issues and securing national energy resilience. These results provide valuable insights for energy sector stakeholders in optimizing crude oil storage and refinery operations while minimizing repair costs and downtime.