EX-99.1 2 ni-ex991_20260331.htm EX-99.1 Document Exhibit 99.1 FOR IMMEDIATE RELEASE May 6, 2026 FOR ADDITIONAL INFORMATION Media Investors media@nisource.com investors@nisource.com NiSource announces first quarter results • GenCo cost savings expand to approximately $1.4 billion for existing customers through Alphabet and Amazon collaboration • Raising 2026-2033 non-GAAP consolidated adjusted EPS compound annual growth rate to 9%-10% • Reaffirming 2026 non-GAAP consolidated adjusted EPS guidance reflecting approximately 8% year-over-year growth at the midpoint MERRILLVILLE, Ind. - NiSource Inc. (NYSE: NI) today announced, on a GAAP basis, net income available to common shareholders for the quarter ended March 31, 2026 of $510.7 million, or $1.06 of earnings per diluted share, compared to net income available to common shareholders of $474.8 million, or $1.00 of earnings per diluted share, for the same period of 2025. NiSource also reported first quarter 2026 non-GAAP adjusted net income available to common shareholders of $509.6 million, or $1.06 of consolidated adjusted EPS, compared to consolidated non-GAAP adjusted net income available to common shareholders of $…
Open exhibit ↗Current Report · Items 2.02, 9.01 · 8-K
NiSource Inc.
NINYSEEQUITYCurrent
Results of Operations and Financial Condition
ITEM 2.02. RESULTS OF OPERATIONS AND FINANCIAL CONDITION On May 6, 2026, NiSource Inc. (the “Company”) reported its financial results for the period ended March 31, 2026. The Company’s press release, dated May 6, 2026, is attached as Exhibit 99.1.
Company context
NiSource Inc. (NYSE: NI) is one of the largest fully-regulated utility companies in the United States, serving approximately 3.3 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The mission of our approximately 7,700 employees is to deliver safe, reliable energy that drives value to our customers. NiSource is a member of the Dow Jones Sustainability - North America Index and is on Forbes lists of America’s Best Employers for Women and Diversity. Learn more about NiSource’s record of leadership in sustainability, investments in the communities it serves and how we live our vision to be an innovative and trusted energy partner at www. NiSource.com.