The successful application of Oilfield Data Services Inc.’s (ODSI) Virtual Metering solution, with failed subsea flow meters in two North Sea wet gas wells, saved the operator at least $4 million per well by avoiding the installation of subsea multiphase flow meters (MPFMs). This case study delves into the use of the Well Analyzer Automated Real-Time System (ARTS) for real-time well performance monitoring, including automated rate calculations, PVT adjustments, and pressure transient analysis. This approach helped in accurately calculating gas rates, detecting errors in allocations, and meter calibration. The solution was particularly effective in optimizing field development and net present value (NPV), as well as in the ongoing surveillance and analysis of well performance.