After rejecting a request that oil industry experts be required to testify under oath, the Senate Resources Chair cut off microphones when the Minority Leader attempted to explain why he thought the request was appropriate.Sen. Cathy Giessel, an Anchorage Republican, said it was “inappropriate” and “unprofessional” of Sen. Hollis French to “spring an under-oath requirement on invited citizens” during a Wednesday hearing of the Resources Committee. Representatives from Exxon, BP, ConocoPhillips, and Repsol were there to give updates on how their work was proceeding under a new oil tax regime.When French – an Anchorage Democrat — asked for a chance to respond, he was again denied.GIESSEL: As the chair it is my decision, and I’ve gotten a legal consultation on that.FRENCH: I guess I’ll just — As a point of person privilege I will say that …GIESSEL: Sen. French, you are out of order.FRENCH: The only …GIESSEL: Brief at ease.FRENCH: I’m going to keep talking …What followed was a half-minute of silence on the Legislature’s official recordings of the proceedings, even though French continued to address the committee and its audience in the room. French and Giessel later sparred on the Senate floor, through a pair of seething speeches.In his address, French said his request complied with statute, even if that statute was rarely used. He also argued that the state has historically been too trusting of the oil industry.“What does it say about us when we think it is unprofessional to use these statutes in the furtherance of our duties, of our obligations as Alaska state legislators?” French asked the body.Giessel responded by pointing out that the last time the statute to compel testifiers to speak under oath was last used in 1997.“I think that if we distrust the citizens who are coming, than we need to execute a different process. But simply asking for informational reports to a committee does not justify placing them under oath,” said Giessel.Giessel also noted that it was “unfortunate” that the tension between the two senators had come to a verbal “duel” on the floor.