Direct Answer
NiSource reported revenue of $6.5 billion for the fiscal year ended December 31, 2025, with an operating margin of 28.1% and net income of $930 million, according to its SEC filings. Revenue grew 23.5% from the prior year.
What Are NiSource's Key Financial Figures?
| Fiscal year | FY2025 ended December 31, 2025 | FY2024 ended December 31, 2024 | FY2023 ended December 31, 2023 | FY2022 ended December 31, 2022 |
|---|---|---|---|---|
| Revenue | $6.5 billion | $5.3 billion | $5.3 billion | $5.7 billion |
| Operating income | $1.8 billion | $1.5 billion | $1.3 billion | $1.3 billion |
| Operating margin | 28.1% | 27.6% | 24.2% | 22.1% |
| Net income | $930 million | $760 million | $714 million | $804 million |
| Net margin | 14.3% | 14.4% | 13.4% | 14.0% |
| Operating cash flow | $2.4 billion | $1.8 billion | $1.9 billion | $1.4 billion |
| Capital expenditures | $2.8 billion | $2.6 billion | $2.6 billion | $2.2 billion |
| Free cash flow | -$420 million | -$833 million | -$711 million | -$794 million |
Operating margin widened by 0.6 percentage points between fiscal 2024 and 2025, which separates pricing and cost discipline from revenue growth alone. Free cash flow (operating cash flow minus capital expenditures) was -$420 million against net income of $930 million; cash generation fell short of reported earnings, which is worth reconciling in the cash flow statement.
What Does NiSource's Balance Sheet Show?
| Cash and cash equivalents | $110 million |
|---|---|
| Long-term debt | $15.5 billion |
| Total assets | $35.9 billion |
| Total liabilities | Not reported |
| Shareholders' equity | $9.5 billion |
| Current ratio | 0.7x |
Balance sheet values are as of the end of fiscal 2025. Income statement figures describe a whole year; balance sheet figures describe a single day, so the two answer different questions.
Where These Numbers Come From
Every figure on this page is a value NiSource reported in its own SEC filings, read from the SEC's XBRL data (accession 0001111711-26-000027 for fiscal year 2025). Ratios are computed from those reported values. Figures were retrieved on October 12, 2026; a later amendment or a new annual report can change them, and the filing itself always takes precedence over this summary.
Each fiscal year is labeled by the calendar year in which it ended, so a company that names the same period differently in its own filings (many retailers whose year ends in January) may use another label. A year is left out of the table when the SEC data set holds no value for it. A figure shown as "Not reported" means the company did not file a value under the standard tag Swoopr reads, not that the amount was zero. This page is educational and describes reported history only; it is not a forecast or a recommendation.
Frequently Asked Questions
What was NiSource's revenue in fiscal 2025?
NiSource reported revenue of $6.5 billion for the fiscal year ended December 31, 2025, according to its SEC filings.
What is NiSource's operating margin?
NiSource's operating margin was 28.1% in fiscal 2025: operating income of $1.8 billion on revenue of $6.5 billion.
How much free cash flow did NiSource generate?
Operating cash flow of $2.4 billion less capital expenditures of $2.8 billion gives free cash flow of -$420 million for fiscal 2025.