High-yield energy bonds are on track for their worst year since the global financial crisis yet some funds are holding on, convinced that markets underestimate the ability of many oil companies to ride out the crude price slump. Some money managers such as Western Asset Management Co., Eaton Vance Corp. and Aberdeen Asset Management have broadly held on to their investments in bonds of oil and gas producers (removed “U.S.”) throughout the year even as now they lag more than 95 percent of their peers, according to Morningstar data. The average yield on U.S.