Essundiro ly'amafuta ery'ekika kya Shell n'ekkubo eritambuza emmotoka kuliko emmotoka za buyonjo n'emmotoka y'olukale ekika kya ttakisi. Kuliko abavuzi ba bboodabooda ne ku ssundiro waliwo emmotoka epaakinzeewo. Essundiro lino bye bifo awanyeerwa amafuta agakozesebwa mu mmotoka, waliwo n'ekipande ekiranga ekinene.