YPF ypf sociedad anonima NYSE Integrated oil Companies WWD woodward, inc. NASDAQ Industrial Machinery/Components WPRT westport fuel systems inc - common shares NASDAQ Industrial Machinery/Components WRD weride inc. - american depositary shares NYSE Oil & Gas Production HCC warrior met coal, inc. NYSE Coal Mining WTI w&t offshore, inc. NYSE Oil & Gas Production VOC voc energy trust units of beneficial interest NYSE Oil & Gas Production VNOM viper energy, inc. - class a NASDAQ Oil & Gas Production VTNR vertex energy, inc NASDAQ Integrated oil Companies VET vermilion energy inc. common (canada) NYSE Oil & Gas Production VLO valero energy corporation NYSE Integrated oil Companies EGY vaalco energy, inc. NYSE Oil & Gas Production USEG u.s. energy corp. NASDAQ Oil & Gas Production RIG transocean ltd (switzerland) NYSE Oil & Gas Production TPIC tpi composites, inc. NASDAQ Industrial Machinery/Components THR thermon group holdings, inc. NYSE Industrial Machinery/Components TPL texas pacific land corporation NYSE Oil & Gas Production TTI tetra technologies, inc. NYSE Oil & Gas Production TELL tellurian inc. NASDAQ Oil & Gas Production FTI technipfmc plc ordinary share NYSE Metal Fabrications SDPI superior drilling products, inc. AMEX Metal Fabrications SUN sunoco lp common units representing limited partner interests NYSE Oil Refining/Marketing SU suncor energy inc. NYSE Integrated oil Companies SWN southwestern energy company NYSE Oil & Gas Production SOI solaris oilfield infrastructure, inc. class a NYSE Metal Fabrications SM sm energy company NYSE Oil & Gas Production SBOW silverbow resorces, inc. NYSE Oil & Gas Production SN sharkninja, inc. ordinary shares NYSE Oil & Gas Production WTTR select energy services, inc. class a NYSE Oilfield Services/Equipment SDRL seadrill limited common shares NYSE Oil & Gas Production SLB schlumberger n.v. NYSE Oilfield Services/Equipment SSL sasol ltd. american depositary shares NYSE Oil & Gas Production SD sandridge energy, inc. NYSE Oil & Gas Production SJT san juan basin royalty trust NYSE Oil & Gas Production SBR sabine royalty trust NYSE Oil & Gas Production RES rpc, inc. NYSE Oilfield Services/Equipment REI ring energy, inc. AMEX Oil & Gas Production RCON recon technology, ltd. - class a ordinary shares NASDAQ Oilfield Services/Equipment RRC range resources corporation NYSE Oil & Gas Production METC ramaco resources, inc. NASDAQ Coal Mining PUMP propetro holding corp. NASDAQ Oilfield Services/Equipment PFIE profire energy, inc. NASDAQ Metal Fabrications PNRG primeenergy resources corporation NASDAQ Oil & Gas Production PDS precision drilling corporation NYSE Oil & Gas Production PLUG plug power, inc. NASDAQ Industrial Machinery/Components PAGP plains gp holdings, l.p. - class a shares representing limited partner interests NYSE Natural Gas Distribution PAA plains all american pipeline, l.p. - common units representing limited partner interests NYSE Natural Gas Distribution PXD pioneer natural resources company NYSE Oil & Gas Production PHX phx minerals inc. NYSE Oil & Gas Production PSX phillips 66 NYSE Integrated oil Companies