This research shows that when we apply fix prices to the export market, Japan and Singapore are the only export consumers for Indonesia. In addition, without assigning minimum consumption for each domestic region, Irian and Sumatra are the regions with high gas consumption. The result of the case shows that all export markets demand Indonesian gas. In addition, to analyze variables that affect the results of our model, we run sensitivity analysis by changing price elasticities, income elasticities, discount rate, and costs.