The move will add the software layer to a complete revamp of Shell's IT infrastructure undertaken over the past 18 months.
Last year, the company consolidated worldwide application delivery into three regional "megacentre hubs" in a $100m (£67m) deal with IBM - a move from which Shell expected savings of $30-$40m over five years. To deliver the applications it signed a three-year, $250m deal with Cable & Wireless, from which it expected savings of $50m.
Ovum analyst Eric Woods said, "When an enterprise has consolidated at the level of servers and the network it is to be expected that it will do it at the level of information as well. It is clearly trying to lay a base level across the business to gain efficiency in handling information. We will see more reorganisations of this kind."
The portal will give access to SAP and other enterprise software, databases, e-mail and company-wide notification systems via role-based access where personal rights to types of data are based on the job.
Shell expects that the simpler access and the ability to cross-reference information will boost productivity, win savings and reduce missed opportunities.