Outsourcing
Shell have wanted to ditch everything that isn't part of the extracting, refinement and distrubution of Oil products for some time. They want to ditch the retail part, they want to ditch the IT.
It wouldnt surprise me if in a few years that some other oil company has bought them out, as they are struggling to make up the problem they have with the reserves they have on stock.
Having worked for Shell in the front line, this has no real impact as most of the IT support was outsourced anyway.