Nisource (NI) Operating Expenses (2009 - 2026)

Nisource has reported Operating Expenses for 18 years, with the latest figure at $1.5 billion in Q1 2026.

• For the quarter ending Q1 2026, Operating Expenses rose 8.44% year-over-year to $1.5 billion; the trailing twelve-month figure through Mar 2026 stood at $4.9 billion (up 14.57% YoY), and the FY2025 full-year result was $4.8 billion, up 20.18% from the prior year.
• Operating Expenses for Q1 2026 stood at $1.5 billion, up from $1.4 billion in the prior quarter.
• The five-year high for Operating Expenses was $1.5 billion in Q1 2026, with the low at $794.4 million in Q3 2023.
• Historically, Operating Expenses has averaged $1.1 billion across 5 years, with a median of $1.1 billion in 2023.
• Annual changes were most pronounced in 2024 — Operating Expenses declined 21.75% — and 2025, when it grew 26.8%.
• Nisource's Operating Expenses stood at $1.3 billion in 2022, then fell by 20.89% to $1.1 billion in 2023, then grew by 10.53% to $1.2 billion in 2024, then grew by 18.48% to $1.4 billion in 2025, then advanced by 11.28% to $1.5 billion in 2026.
• The last three Operating Expenses figures came in at $1.5 billion (Q1 2026), $1.4 billion (Q4 2025), and $975.6 million (Q3 2025), per Business Quant data.