Understanding buyer behavior is critical in marketing strategy and execution. Buyer behavior is one of the most significant factors in marketing success. The papers’ goal is to learn about the customer purchasing habits of MS and HSD in selected public and private sector oil businesses in Telangana state. A systematic questionnaire was created for this aim, and a sample of 900 respondents from public and private sector oil firms was collected and evaluated using ANOVA and Independent sample t-tests in SPSS 23.0 Version. The findings of the ANOVA analysis showed that information had a substantial impact on customer purchasing preference of buying MS & HSD in Select Public and Private Sector Oil Companies. Similarly, an independent t-test revealed a substantial mean difference in consumer purchase preferences across select public and private oil companies for purchasing MS and HSD in select public and private oil companies.