Oil producers in the U.S. are about to see their credit lines shrink, just when they need the money most. The latest round of twice-yearly reevaluations is under way, and almost 80 percent of oil and natural gas producers will see a reduction in the maximum amount they can borrow, according to a survey by Haynes and Boone LLP, a law firm with offices in Houston, New York and other cities. Companies’ credit lines will be cut by an average of 39 percent, the survey showed. “There’s going to be a reduction to the majority of these credit lines,” said Neal Dingmann, an analyst at SunTrust Robinson Humphrey Inc. “It’ll make a lot of these companies reduce a bit more on spending.” In many cases, banks have first claim on assets in a bankruptcy, and the size of a loan is tied to how much an oil producer’s acreage […]