Shares of oil and gas companies charged broadly higher in morning trade Wednesday, fueled by a jump in crude oil futures to a 3 1/2-year high in the wake increased pressure on Iran's oil industry by the Trump administration. The SPDR Energy Select Sector ETF rallied 1.9%, with 29 of 31 components trading higher. The biggest gainer was Concho Resources Inc.'s stock which ran up 4.4% to also pace the S&P 500's gainers. Among the energy ETF's most heavily weighted components, shares of Exxon Mobil Corp. climbed 1.8%, Chevron Corp. rose 2% and Schlumberger Ltd. tacked on 2%. Among the most active oil and gas stocks, Chesapeake Energy Corp.'s stock shot up 7.1% toward a 13-month high on volume of over 30 million shares. Separately, continuous crude oil futures rallied 2.9% to $72.55 a barrel, the highest level seen since November 2014.