WeeklyShell looking for four rigs to work in NigeriaSupermajor seeking two jack-ups and two land rigs under four separate contracts, while Nigerian indie Seplat Petroleum is also on the hunt for onshore unitPre-qualifying: Chevron is shortlisting companies for repair work on its Agbami FPSO off NigeriaPhoto: CHEVRONIain EsauLondon