The aim of this paper is to show how the supply of cocoa beans (Theobroma cacao) was presented in the municipality of Altamira, located in the south-western region of the state of Para, in the period from 1994 to 2015. Using a theoretical basis in supply and statistical theories, the study was based on the national public database provided by the IBGE Automatic Recovery System (SIDRA), where all the data was processed using Excel software. At the end of the case studies, the sensitivity to which the production of cocoa beans in the municipality is subject due to variations in the average price of the product was realised.