NiSource Inc. provides access to its financial reports and SEC filings through its official website. Typically, this information can be found in the Investor Relations section, where the company shares relevant documents such as annual reports, quarterly earnings, and other financial disclosures. SEC filings, which include essential details like 10-Ks, 10-Qs, and other regulatory documents, are usually listed alongside the financial reports for easy access. Additionally, this section may include presentations, conference call transcripts, and other resources that may help gain insights into the company's performance and strategic initiatives. It is advisable to check the website regularly, as the latest financial documents and SEC filings are typically updated promptly following official announcements and the conclusion of reporting periods. For the most accurate and up-to-date information, visiting the Investor Relations section of NiSource's website is the best approach, as it serves as a comprehensive repository for stakeholders and investors alike.