The oil selloff has hurt energy investments across the board, including one that has attracted billions through its reputation as a haven from big drops in the price of crude. Shares of energy pipeline and storage companies have fallen sharply in the past couple of weeks, accelerating a recent rout for master-limited partnerships, which have seen strong demand for their shares in recent years as investors sought ways to profit from the natural gas and energy infrastructure boom in the U.S. From the start of 2010 to the end of 2014, a net $44 billion flowed into MLP mutual funds and exchange-traded funds, and so far this year through to Oct. 31, investors have put a net $3 billion into these funds, according to Morningstar Inc. Since 2009, MLPs have raised more than $100 billion from initial public offerings and follow-on stock sales, according to Dealogic. Investors were lured […]