The stress patterns of Aragonese are examined within the framework of generative phonology, based on data taken from the traditional works of Haensch, Badia Margarit, and Alvar Lopez. Stress placement is shown to be regular. Two sets of rules which account for the data are compared. In the preferred solution, a penultimate stress rule, a rule of stress shift, and other independently motivated rules account for the various stress patterns in Aragonese. Dialectal differences in stress placement are shown to result from rule reordering. (Author/KM)