A reliable estimation of reserves is achieved through successfully combining geoscience and engineering interpretation in an integrated manner and having a full appreciation of the quality of the data on which the analysis is based. Petroxin has extensive experience in providing accurate, fully documented analyses, combining the skills and knowledge required of reservoir geology, geophysics and engineering to achieve the optimum risked value of reserves. Reports can be prepared, as independent advisors, for investment banks and industry clients to SEC or WPC/SPE standards.