Concerns over availability will soon replace fears about price, according to Mike Wirth Physical oil shortages could begin to emerge worldwide within weeks due to the Middle East war and continued closure of the Strait of Hormuz, Chevron CEO Mike Wirth has warned. Attacks on energy infrastructure  and a dual shipping blockade in the critical waterway – which carries about a fifth of global seaborne oil and LNG – have sharply cut deliveries and pushed prices to multi-year highs . Multiple