National Fuel Gas Company is saying goodbye to one longtime employee and welcoming another to its management ranks. The energy company announced that Ann Wegrzyn will retire as chief information officer effective Feb. 1, 2019. She has been with National Fuel for more than 33 years. Wegrzyn, a University at Buffalo graduate, joined National Fuel in 1985 as an analyst and worked in various departments across the company. National Fuel said that Martin Krebs will take over the role of CIO.