The prices of Basra Heavy and Medium crude oil rose slightly today, Wednesday, with oil prices rising in global markets.Basra Heavy crude prices rose 42 cents to reach $83.43, and Basra Medium crude prices rose 42 cents to reach $86.81.Global oil prices rose as a larger-than-expected decline in US crude inventories and escalating geopolitical tensions raised investor concerns about tight supplies.Source: National Iraqi News Agency