ExxonMobil has made an 8th oil strike offshore Guyana. The Longtail discovery could push discovered resources on the block to over 4 billion boe, and paves the way for a joint development with the nearby Turbot discovery. We look at what this means for ExxonMobil, Hess and CNOOC Ltd. We also provide commentary on the following stories: Markets rally as OPEC announces production uplift. CNOOC Ltd greenlights US$400M Long Lake oil sands expansion. Equinor enters Argentina solar. Chevron backs new energy venture fund. Shell sells non-core assets in Norway. BP’s Australian Woolworths deal falls through. Equinor and Aker BP dominate Norway’s 24th round. Equinor partners with Microsoft for cloud services.