Oil prices rose today in a choppy trading session as investors balanced concerns about global demand growth and potential supply disruptions from political instability in Russia. Price Futures Group analyst Phil Flynn warned that Russian political instability could worsen supply shortages in the months ahead due to Saudi Arabia’s pledge to cut output from July, a risk of lower U.S. production and an imminent end to U.S. strategic reserve releases. “The reality is (the Russian turmoil) is another risk against complacency in a market that has been counting on a future drop in demand to meet what will be a big drop in supply,” Flynn said. WTI traded up $.21 or .3% to close at $69.37.Brent traded up $.33 or .5% to close at $74.18.