reserves & corporate governance, page-38

Rowser - MAD certified the reserves first, then shot 3D 'seismics' next. This is a highly unusual methodology, as typically the seismic data is analysed by the independent cerifiers in conjunction with well control to assess reserves at particular locations, rather than following reserves certification. In other words, companies work out where to drill prior to deciding how much oil can be commercially recovered From each proved undeveloped location with a 90 % confidence interval from the relevant location which is apparently unknow at the time of verification.. I suggest you read the reports. I can point them out for you if you like as I know how precious your time is.
For the record and in the interests of full disclosure I remain short MAD.