Exploration in Oman's Rub al Khali Basin over the last ten years has delivered excellent full-cycle returns. Key oil and gas-bearing plays are the Precambrian to Cretaceous oil play, and a Paleozoic tight gas play. Returns were driven by the relatively high levels of oil in the total discovered volumes of just over 925 mmboe, and by the relatively low levels of sub-commercial discoveries in the mix. In particular the early years contributed to the returns achieved, as PDO drilled fewer, more carefully-targeted wells and Occidental achieved success with an intensive campaign of near-field drilling. The future outlook for exploration also looks positive, with yet-to-find resources into the billions of barrels of oil equivalent for both oil and gas. Oil finds can be quickly and cheaply tied into existing infrastructure, and if gas prices equivalent to those achieved in BP's Khazzan-Makarem project are available to explorers then tight gas finds can also add value.