The USA and Israel have attacked Iran, one of many largest fuel and oil producers. Now refueling and heating are more likely to turn out to be costlier – particularly due to issues that Tehran might block an essential strait in response.
https://www.spiegel.de/wirtschaft/iran-israel-konflikt-blockade-der-meerenge-koennte-heizen-und-tanken-verteuern-a-bccce5d1-9190-423c-ae7a-69ef0ed0f301#ref=rss