At the end of April, crude oil prices settled at the lowest in four years. The immediate reason was a report that Saudi Arabia was fed up with production cuts and was willing to give cheaper oil for a longer period.
The other reason: Trump’s tariffs. Ironically, the tariff fear pressuring prices is related to economic growth prospects. Yet cheap oil is a great fuel for economic growth — which is why oil importers are happy. Exporters, not so much. – Oilprice.com