LONDON, May 30 (Reuters) – Sky-high refining margins for diesel and gasoline in Europe and the United States, fueled by a disruption in Russian supplies, have pushed prices for some types of physical crude to all-time records, according to traders.

Fuel shortages in key consumer countries just as the summer driving season in the United States is beginning has lifted bid prices for lighter and medium grade oils from West Africa to the North Sea to near and above historic highs.

The steep climbs…