BARTON COUNTY — Two Barton County residents died Monday night in an oilfield accident at a rural saltwater disposal lease. Kebby R. Myers, 30, of Claflin and Curtis L. Hoffman, 50, of Great Bend, were pronounced deceased at the scene by Deputy County Corner Doctor Dan Witt. They were victims of asphyxiation from the presence of hydrogen sulfide gas, a by-product from the production of oil and natural gas. hydrogen sulfide, causes respiratory paralysis and is highly toxic.The accident scene was discovered by Myers wife, April.