The OG Portal is a restricted site and to become a member of the OGEO Community and have access you need to register. To qualify you need to be employed by a company which is either in the oil and gas business and eligible to be a member of the OGP (Oil and Gas Producers Industry Association) or a a supplier of EO geo-information services. If you believe you qualify and wish to have access then you need to send a mail to the secretariat (Monica Miguel-Lago). Please note that there is an approval process which can sometimes take a few days to clear.