We carried out a screening study for a small potential offshore development in Libya. The field had a hydrogen sulphide content of 2.0 mol% and reserves of 40 million barrels. A key element of the study was to assess how this development would interface with an existing onshore treatment plant. In addition, the study sought to establish the optimum balance between onshore and offshore facilities. The development and operating cost estimates were generated using our NETCO$TER cost Evaluation Software.