Macro: Oil markets twitchy as traders absorb enormity of tropical storm Harvey and weigh up its implications for energy markets. Companies: Statoil finds more cost savings at Johan Sverdrup; Russian Majors report strong H1 results. M&A: Total exits Gina Krog as KUFPEC takes 15% stake for US$317 million. Exploration: Play opener disappoints in frontier Barents Sea. Also we focus on some of the key themes in longer term global oil supply.