Well A began production in 2015. Cumulative production to March 31, 2019 was 290,550 BO.

Oil production on April 1, 2019 was 5,500 BOPM. Oil production on March 31, 2020 was 4,700 BOPM.

3. Calculate the expected production rate on March 31, 2021
4. Calculate the remaining reserves from March 31, 2020 to the economic limit of 400 BOPM
5. In how many months from March 31, 2020 will the well reach its economic limit
6. Calculate the ultimate recovery of the well