Wells Fargo shares have declined about 10% so far this year. Wells Fargo WFC -0.49 % & Co.’s first-quarter profit fell 5.9% as the nation’s third-largest bank by assets said the slump in oil prices continued to punish energy companies and started to hurt some consumers. Shares were relatively flat as earnings and revenue beat Wall Street estimates. The San Francisco firm has long been a bellwether of the housing market, where it is a top mortgage lender, but in recent quarters it has also been a barometer for how falling oil prices are affecting big banks. While Wells Fargo executives have stressed that the energy portfolio accounts for only about 2% of overall loans, potential losses are piling up. Discussion of energy dominated the analyst call. Chief Financial Officer John Shrewsberry said he still expects pain in the oil patch, and the bank will “continue talking about [energy […]