The price of oil per barrel rose from around $21 in July 1990 to a peak of $46 in October 1990, an increase of over 100%. The price hike was largely due to concerns about the disruption of oil supplies from Iraq and Kuwait, two major oil-producing countries in the region. The war also caused a sharp increase in the demand for oil from other sources, such as Saudi Arabia and Iran. This drove up the price of oil even further.
The high oil prices during the Gulf War had a significant impact on the global economy. The increased cost of oil led to higher prices for gasoline and other petroleum-based products, which in turn led to higher prices for goods and services. This caused inflation to rise and economic growth to slow down.
The price of oil eventually came down after the Gulf War ended, but the conflict had a lasting impact on the global oil market. It highlighted the vulnerability of oil supplies to geopolitical events, and it led to increased investment in alternative sources of energy.