President Idriss Déby Itno has attempted to get tough with China National Petroleum Corporation (CNPC) over environmental violations at the Ronier field. This minor development is significant because of increased international interest in the Chadian upstream, with new companies taking acreage in the hope of finding successful rift basin plays, and for what it says about N’Djaména’s relationship with its biggest investor. The government halted CNPC’s operations in August after finding waste crude stored in open pits. However, it lifted the suspension in October after CNPC promised to literally clean up its act.