$2$c$)$ The following data were obtained for a reservoir, using the trapezodial rule, estimate the initial oil in place, free gas in place and the solution gas.

$\backslash$table$[[$CONTOUR $($ff$.$ss$),$AREA $($Acres$)],[7050,0],[7100,50\mathrm{.}91],[{7150}^{**},197\mathrm{.}99],[7200,322\mathrm{.}30],[{7250}^{****},468\mathrm{.}88],[7300,630\mathrm{.}76]]$

Note: ${?}^{**}$GOC,${?}^{****}$OWC

Porosity $=22\%,$ water saturation $=13\%,Ne\frac{l}{G}$ross$=0\mathrm{.}65,$Boi$=1\mathrm{.}32r\frac{b}{s}tb,Ei=221sc\frac{f}{c}$uft and solution GOR $=320sc\frac{f}{s}tb.$