Shell began producing from the Stones project in the US Gulf of Mexico (GOM), which in 9,500 ft of water is the world’s deepest offshore oil and gas development. Initial production flows from two subsea wells that are tied back to a floating production, storage, and offloading (FPSO) vessel. Peak production slated for late 2017 is an estimated 50,000 BOE/D, which will flow from eight subsea wells and be assisted by a seafloor multiphase pumping system. The FPSO is only the second to be installed in the US GOM. Shell has a 100% interest in Stones.