尼索思 2026年季度报告

FORM 10-Q ☑QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March31, 2026 or ☐TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period fromto Commission file number 001-16189 NiSource Inc. (Exact name of registrant as specified in its charter) 46410(Zip Code) (614) 460-6000(Registrant’s telephone number, including area code) Securities registered pursuant to Section12(b)of the Act: Common Stock, par value $0.01 per share Indicate by check mark whether the registrant: (1)has filed all reports required to be filed by Section13 or 15(d) of the Securities Exchange Act of 1934 during thepreceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2)has been subject to such filing requirements for the past 90days. YesNo Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T(232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files.) YesNo Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerginggrowth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of theExchange Act. If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revisedfinancial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐ Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).Yes☐No☑ NISOURCE INC.FORM 10-Q QUARTERLY REPORTFOR THE QUARTER ENDED MARCH31, 2026 Table of Contents Defined Terms PARTIFINANCIAL INFORMATION Item1.Financial Statements - unauditedCondensed Statements of Consolidated Income (unaudited)9Condensed Statements of Consolidated Comprehensive Income (unaudited)10Condensed Consolidated Balance Sheets (unaudited)11Condensed Statements of Consolidated Cash Flows (unaudited)13Condensed Statements of Consolidated Equity (unaudited)14Notes to Condensed Consolidated Financial Statements (unaudited)16Item2.Management’s Discussion and Analysis of Financial Condition and Results of Operations36Item3.Quantitative and Qualitative Disclosures About Market Risk58Item4.Controls and Procedures58 PARTIIOTHER INFORMATION Item1.Legal Proceedings59Item1A.Risk Factors59Item2.Unregistered Sales of Equity Securities and Use of Proceeds59Item3.Defaults Upon Senior Securities59Item4.Mine Safety Disclosures59Item5.Other Information59Item6.Exhibits60Signature61 DEFINED TERMS The following is a list of frequently used abbreviations or acronyms that are found in this report: Columbia Gas of Kentucky, Inc.Columbia Gas of Maryland, Inc.Columbia Gas of Ohio, Inc.Columbia Gas of Pennsylvania, Inc.Columbia Gas of Virginia, Inc.NIPSCO Generation LLCGeneration Holdings I LLCGeneration Holdings II LLCNorthern Indiana Public Service Company LLCNIPSCO Holdings I LLCNIPSCO Holdings II LLCNiSource Inc.RosewaterWind Generation LLC and its wholly owned subsidiary,Rosewater Wind Farm LLCIndiana Crossroads Solar Generation LLC and its wholly owned subsidiary,Meadow Lake Solar Park LLCIndiana Crossroads Wind Generation LLC and its wholly owned subsidiary,Indiana Crossroads Wind Farm LLCDunn's Bridge I Solar Generation LLC and its wholly owned subsidiary,Dunn's Bridge Solar Center, LLC Abbreviations and OtherADSADS ContractAFUDCAlphabetAlphabet ContractAOCIASCASUATMBESSBIP Orion Holdco L.P. Amazon Data Services, Inc,NIPSCO agreement to provide electricity to ADS' data centersAllowance for funds used during constructionAlphabet, Inc.NIPSCO agreement to provide electricity to Alphabet's data centersAccumulated other comprehensive income (loss)Accounting standards codificationAccounting standards updateAt-the-marketBattery energy storage systemBIP Orion Holdco L.P., a Delaware limited liability company and also anaffiliate of BlackstoneBIP Orion Holdco II L.P., a Delaware limited liability company and also anaffiliate of BlackstoneBlackstone Infrastructure Partners L.P.BIPOrion Holdco L.P.and BIP Orion Holdco II L.P.affiliates ofBlackstone(GenCo Minority Interest Transaction)and BlackstoneInfrastructure Partners, affiliates of Blackstone (NIPSCO Minority InterestTransaction)Build-transfer agreementCombined cycle gas turbineCoal combustion residualsChief executive officer DEFINED TERMS Ohio capital expenditure programComprehensive Environmental Response Compensation and Liability Act(also known as Superfund)Chief operating decision makerReportable segment comprised of the results of NiSource Gas