Otter Tail Corp Long Term Debt

• Otter Tail Corp showed an increase of +2.1% in Long Term Debt from 2024 to 2025.
• This data is from Otter Tail Corp's annual report (Form 10-K), filed with the SEC on February 18, 2026.
• XBRL data for this metric is available from 2009 to 2025 (27 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Quarterly values from 10-Q filings: Q2 2010: $435.90 million | Q3 2010: $435.57 million | Q1 2011: $436.06 million | Q2 2011: $433.72 million | Q3 2011: $433.45 million | Q1 2012: $471.88 million | Q2 2012: $421.83 million | Q3 2012: $421.73 million | Q1 2013: $437.40 million | Q2 2013: $437.35 million | Q3 2013: $437.31 million | Q1 2014: $498.64 million | Q2 2014: $498.59 million | Q3 2014: $498.54 million | Q1 2015: $498.44 million | Q2 2015: $498.38 million | Q3 2015: $498.33 million | Q1 2016: $493.80 million | Q2 2016: $493.80 million | Q3 2016: $460.76 million | Q1 2017: $490.37 million | Q2 2017: $490.39 million | Q3 2017: $490.41 million | Q1 2018: $589.94 million | Q2 2018: $589.96 million | Q3 2018: $589.98 million | Q1 2019: $590.02 million | Q2 2019: $590.06 million | Q3 2019: $590.02 million | Q1 2020: $724.32 million | Q2 2020: $724.39 million | Q3 2020: $764.27 million | Q1 2021: $624.49 million | Q2 2021: $624.54 million | Q3 2021: $594.62 million | Q1 2022: $734.07 million | Q2 2022: $823.70 million | Q3 2022: $823.76 million | Q1 2023: $823.88 million | Q2 2023: $823.94 million | Q3 2023: $824.00 million | Q4 2023: $824.06 million | Q1 2024: $943.54 million | Q2 2024: $943.59 million | Q3 2024: $943.66 million | Q1 2025: $993.51 million | Q2 2025: $1.04 billion | Q3 2025: $1.04 billion.
• Over the full 27 years of available data (2009 to 2025), Otter Tail Corp's Long Term Debt has grown by 120.9%.
• Historical annual values: Fiscal year 2025: $963.57 million | Fiscal year 2024: $943.73 million | Fiscal year 2023: $824.06 million | Fiscal year 2023: $824.06 million | Fiscal year 2022: $823.82 million | Fiscal year 2021: $734.01 million | Fiscal year 2020: $624.43 million | Fiscal year 2019: $689.58 million | Fiscal year 2019: $692.35 million | Fiscal year 2018: $590.00 million | Fiscal year 2018: $592.52 million | Fiscal year 2017: $490.38 million | Fiscal year 2017: $492.71 million | Fiscal year 2016: $540.94 million | Fiscal year 2016: $505.34 million | Fiscal year 2015: $498.49 million | Fiscal year 2015: $443.85 million | Fiscal year 2014: $498.49 million | Fiscal year 2014: $498.69 million | Fiscal year 2013: $389.59 million | Fiscal year 2013: $389.78 million | Fiscal year 2012: $421.68 million | Fiscal year 2012: $421.86 million | Fiscal year 2011: $472.08 million | Fiscal year 2011: $471.92 million | Fiscal year 2010: $433.68 million | Fiscal year 2009: $436.17 million.
• Data sourced from SEC EDGAR public filings as of August 4, 2026.

Last verified: August 4, 2026