Exhibit 99 6363 Main Street/Williamsville, NY 14221 Release Date: Immediate May 1, 2024 Natalie M. Fischer Timothy J. Silverstein Investor Relations Treasurer 716-857-7315 716-857-6 987 NATIONAL FUEL REPORTS SECOND QUARTER EARNINGS WILLIAMSVILLE, N.Y.: National Fuel Gas Company (“National Fuel” or the “Company”) (NYSE:NFG) today announced consolidated results for the second quarter of its 2024 fiscal year and for the six months ended March 31, 2024. FISCAL 2024 SECOND QUARTER SUMMARY • GAAP net income of $1 ...