Hydrates are known to occur in a variety of natural-gas handling facilities and processing equipment in oil fields, refineries, and chemical plants when natural gas and water coexist at elevated pressure and reduced temperature. Prevention of hydrate formation costs large amounts of capital and results in large operating expenses. In order to avoid costly losses due to the formation of these hydrates, several methods, which include thermodynamic modeling and empirical correlations, can be employed to predict the conditions for hydrate formation. The authors employed SAS (SAS Institute, Cary, North Carolina) to develop a new correlation for predicting the hydrate-formation temperatures for both pure and mixture of hydrocarbon systems using the gravity method. The method correlates the hydrate-formation pressure against specific gravity, pressure, and water-vapor pressure.