By Dan Weil The midstream energy companies, such as NuStar, will benefit from rising prices, according to Wells Fargo. Inflation is generally a bad thing, as you already know from your visits to the grocery store. Price increases erode your purchasing power and create imbalances in the economy. That’s why the Federal Reserve is willing to risk a recession by raising interest rates to get inflation back under control. Consumer prices soared 8.3% in the 12 months through April. But there’s a silver lining to the inflation cloud. It’s a “net positive” for midstream oil and gas companies, Wells Fa…