Oil & Gas Plexus lands Shell dealAberdeen oil and gas engineering services business Plexus Holdings has landed a contract with Brunei Shell Petroleum (BSP). October 1st 2012, 11:32 pm 1 min read Facebook An icon of a facebook f logo. LinkedIn An icon of the LinkedIn logo. Twitter An icon of the Twitter logo. Aberdeen oil and gas engineering services business Plexus Holdings has landed a contract with Brunei Shell Petroleum (BSP).