Shares of energy companies were broadly higher Monday, as crude oil prices jumped toward a 5 1/2-month high on supply concerns after reports that the U.S. will announce the end of waivers for countries to import Iranian oil. Also giving the sector a boost was better-than-expected first-quarter results from oil services company Halliburton Co. before the open. The SPDR Energy Select Sector ETF rose 0.8%, with 27 of its 30 equity components gaining ground, led by the 1.8% rally in Marathon Oil Corp.'s stock . Halliburton shares gained 0.1%. Among other more active energy ETF (XLE) components, shares of Kinder Morgan Inc. advanced 1.3%, Exxon Mobil Corp. rose 1.4% and Chevron Corp. tacked on 0.7%. Among the few losers, Schlumberger Ltd.'s stock gave up 0.3% and Anadarko Petroleum Corp. shares slipped 0.3%. The XLE has rallied 18.2% year to date while the S&P 500 has gained 15.8%.