Arkansas Attorney General Dustin McDaniel said at a Mayflower press conference Wednesday he has issued a subpoena for documents, data and other evidence from ExxonMobil pertaining to the crude oil spill that dumped thousands of barrels of oil in Mayflower last week.McDaniel complained of a headache Wednesday at the press conference at Mayflower City Hall after “limited exposure” to the rupture site in Northwoods. He said his staffers were also experiencing side effects from oil fumes, and that he was told several children at a nearby elementary school had been sent home earlier in the day after they became nauseous. “I explained to them I’m not here for a tour and I’m not getting in a van. We’re here on behalf of the State of Arkansas as the state’s lawyer, a constitutional officer empowered by the General Assembly to enforce our laws, and we’re here to conduct an investigation, not take a tour,” McDaniel told members of the press. “I didn’t appreciate how we were treated, so I can only imagine how some of the homeowners must have felt.”