Production forecasting is performed by using both state of the art tools and in-house built tools to customize your specific needs and field conditions. A study of field historical performance is done to understand field specific issues and operating conditions. Decline under different operating conditions is evaluated to perform future forecasting. The offset well / fields data is also utilized if required to understand drive mechanism and wells ultimate recovery ranges. A probabilistic forecasting is also performed using different decline rates and methods to incorporate expected field operating conditions or recovery methods such as secondary or tertiary recovery.