Unless you believe what has happened in the past will influence the future, there is little point in looking back, it's the company's future prospects which will now determine the share price.
President Donald Trump said the U.S. “immediately destroyed” an Iranian drone that approached the USS Boxer near the Strait of Hormuz, the latest sign of escalating military tensions around the critical oil chokepoint...
Americans burned through a lot less gasoline and diesel fuel than expected last week, feeding into investor angst over oil demand. Futures slid 1.5% in New York on Wednesday to the lowest in two weeks after the U.S. Energy Information Administration reported inventories of gasoline and distillate fuels grew by a combined 9.25 million barrels last week, well above analysts’ estimates. Crude inventories did decline by more than 3 million barrels, but that was driven in part by temporary production outages related to Hurricane Barry... https://www.bloomberg.com/news/articles/2019-07-16/oil-holds-near-lows-on-trump-trade-barbs-easing-iran-tensions?srnd=premium
Think the change of management has taken place in 2 phases: first, Paul Vonk; then JPT (no longer involved in day-to-day matters); and that this delayed shift caught out very many, including yours truly.