8-A=120 acres, h=100 ft, PHI=0.18. swi= 32%, primary recovery=160 RB acres-ft, Boi=1.21 RB/STB. Bo=1:1 RBSTB, k=68 md, when flooding process start the following information to be known: Krw=0.25, Kro=0.85.po=1.50. Uw=0.79, E#72%, i=900 bbliday, L=900 ft. Sw bt=0.592. Total Primary recovery (STB) is