Quick Answer
NISOURCE INC. reported Long-Term Debt of $6.43 billion for fiscal year 2015.
NISOURCE INC. Long-Term Debt — Annual History
| Fiscal Year | Long-Term Debt | YoY Change |
|---|---|---|
| 2015 | $6.43B | -24.1% |
| 2014 | $8.47B | +3.5% |
| 2013 | $8.19B | +11.1% |
| 2012 | $7.37B | +11.1% |
| 2011 | $6.63B | — |
- NISOURCE INC. showed a decrease of -24.1% in Long-Term Debt compared to the prior fiscal year.
- Over the 2011–2015 period, NISOURCE INC.’s long-term debt has declined by 3.1% (from $6.63 billion to $6.43 billion).
- The most recent figure is from NISOURCE INC.’s fiscal year 2015 report (Form 10-K), filed with the SEC on February 18, 2016.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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