This dissertation investigates the long-term relationship between crude oil prices and food commodity prices from 1980 to 2011, highlighting that crude oil prices influence food prices through production costs and biofuel demand. The analysis reveals a significant long-run relationship for maize, soybean, and wheat prices, while no co-integration was found for rice prices. Furthermore, the findings indicate unidirectional causality where crude oil prices 'granger cause' the food commodity prices, confirming the impact of oil prices on food markets.