Evaluation and optimization of the TBH well in the field aim to increase the rate of Gas Lift well production in accordance with current reservoir conditions. The current reservoir conditions have changed due to overtime, a decline in the rate of production due to a decrease in reservoir pressure. The availability of gas in the field comes from gas wells in the field.At the TBH well in GEMILANG field, a redesigning of the initial surface operating pressure was carried out to analyze the maximum depth of the injection point and optimize the injection gas rate with the initial surface operating pressure. In addition, the TBH Well has been planned to increase surface operating pressure which aims to increase oil recovery.