ANALISIS PENGENDALIAN BAHAN BAKU TERHADAP JUMLAH PERMINTAAN MENGGUNAKAN METODE MATERIAL REQUIREMENT PLANNING PADA PT KILANG PERTAMINA INTERNASIONAL (KPI) RU V BALIKPAPAN

PT Kilang Pertamina International (KPI) Refinery Unit V Balikpapan actively meets the needs of oil and gas in Indonesia, with a capacity of 260 mbsd, upgraded to 360 mbsd, requiring proper production planning and raw material availability. The Refinery Business & Optimization (RBO) department is responsible for planning, managing operations, and controlling feedstock inventory. Crude oil availability is key to successful production. Research shows the importance of inventory control for operational efficiency. The Material Requirement Planning (MRP) method systematically plans material requirements, helping reduce the risk of shortages or excess raw materials. In analyzing with MRP, three perspectives are used: Economic Order Quantity, Lot for Lot, and Period Order Quantity, where the minimum total inventory cost and setup cost will be sought as a basis for decision-making in controlling raw materials. The results of the data analysis show forecasting calculations to predict the minimum crude oil demand in 2024, based on actual monthly data in 2023. The Moving Average-4 method produces an estimated demand of 7,776,131 barrels per period, with a total procurement of 93,313,584 barrels for 2024. Data processing is continued with the MRP method using Economic Order Quantity (EOQ), Lot For Lot (LFL), and Period Order Quantity (POQ). The ordering results show that the initial stock is 3,948,093.67 barrels, and the EOQ calculation results in a total procurement cost of $6,697,177.70. Meanwhile, the LFL method resulted in a cost of $6,634,913.42. With POQ, the optimal cost obtained is $6,363,031.38. Of the three methods, POQ was chosen as the planning method for crude oil procurement in 2024.