| Details on Long Term Debt |
Details on long-term debt at June 30, 2026, June 30, 2025 and December 31, 2025 are shown below.
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June 30, |
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December 31, |
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Long-Term Debt (millions) |
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2026 |
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2025 |
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2025 |
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Unitil Corporation: |
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3.70% Senior Notes, Due August 1, 2026 |
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$ |
30.0 |
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$ |
30.0 |
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$ |
30.0 |
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3.43% Senior Notes, Due December 18, 2029 |
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30.0 |
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30.0 |
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30.0 |
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5.99% Senior Notes, Due August 21, 2034 |
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20.0 |
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20.0 |
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20.0 |
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Unitil Energy First Mortgage Bonds: |
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6.96% Senior Secured Notes, Due September 1, 2028 |
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6.0 |
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8.0 |
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6.0 |
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8.00% Senior Secured Notes, Due May 1, 2031 |
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7.5 |
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9.0 |
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9.0 |
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6.32% Senior Secured Notes, Due September 15, 2036 |
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15.0 |
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15.0 |
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15.0 |
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3.58% Senior Secured Notes, Due September 15, 2040 |
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27.5 |
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27.5 |
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27.5 |
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4.18% Senior Secured Notes, Due November 30, 2048 |
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30.0 |
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30.0 |
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30.0 |
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5.69% Senior Secured Notes, Due August 21, 2054 |
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40.0 |
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40.0 |
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40.0 |
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Fitchburg: |
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3.52% Senior Notes, Due November 1, 2027 |
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10.0 |
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10.0 |
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10.0 |
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7.37% Senior Notes, Due January 15, 2029 |
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3.6 |
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4.8 |
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4.8 |
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5.90% Senior Notes, Due December 15, 2030 |
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15.0 |
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15.0 |
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15.0 |
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7.98% Senior Notes, Due June 1, 2031 |
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14.0 |
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14.0 |
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14.0 |
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5.70% Senior Notes, Due July 2, 2033 |
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12.0 |
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12.0 |
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12.0 |
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5.54% Senior Notes, Due August 21, 2034 |
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12.5 |
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12.5 |
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12.5 |
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5.62% Senior Notes, Due April 30, 2036 |
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23.0 |
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— |
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— |
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3.78% Senior Notes, Due September 15, 2040 |
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27.5 |
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27.5 |
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27.5 |
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5.87% Senior Notes, Due April 30, 2041 |
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17.0 |
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— |
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— |
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5.99% Senior Notes, Due August 21, 2044 |
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12.5 |
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12.5 |
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12.5 |
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4.32% Senior Notes, Due November 1, 2047 |
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15.0 |
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15.0 |
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15.0 |
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5.96% Senior Notes, Due July 2, 2053 |
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13.0 |
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13.0 |
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13.0 |
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Northern Utilities: |
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3.52% Senior Notes, Due November 1, 2027 |
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20.0 |
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20.0 |
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20.0 |
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5.54% Senior Notes, Due August 21, 2034 |
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25.0 |
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25.0 |
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25.0 |
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7.72% Senior Notes, Due December 3, 2038 |
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50.0 |
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50.0 |
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50.0 |
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5.74% Senior Notes, Due August 21, 2039 |
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15.0 |
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15.0 |
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15.0 |
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3.78% Senior Notes, Due September 15, 2040 |
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40.0 |
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40.0 |
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40.0 |
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4.42% Senior Notes, Due October 15, 2044 |
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50.0 |
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50.0 |
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50.0 |
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4.32% Senior Notes, Due November 1, 2047 |
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30.0 |
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30.0 |
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30.0 |
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4.04% Senior Notes, Due September 12, 2049 |
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40.0 |
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40.0 |
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40.0 |
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Bangor: |
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5.70% Senior Notes, Due July 8, 2030 |
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14.0 |
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— |
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14.0 |
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6.31% Senior Notes, Due July 8, 2035 |
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18.0 |
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— |
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18.0 |
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Granite State: |
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3.72% Senior Notes, Due November 1, 2027 |
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15.0 |
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15.0 |
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15.0 |
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5.74% Senior Notes, Due August 21, 2034 |
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10.0 |
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10.0 |
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10.0 |
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AWC-NH: |
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5.72% Senior Secured Notes, Due June 1, 2028 |
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11.0 |
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— |
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— |
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Abenaki: |
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3.17% Senior Notes, Due June 1, 2051 |
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2.5 |
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— |
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— |
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1.296% - 2.864% Senior Notes, Due October 1, 2031 - May 1, 2045 |
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0.2 |
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— |
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— |
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Unitil Realty Corp.: |
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2.64% Senior Secured Notes, Due December 18, 2030 |
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3.4 |
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3.7 |
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3.5 |
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Total Long-Term Debt |
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725.2 |
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644.5 |
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674.3 |
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Less: Fair Market Value Adjustment for Debt Acquired in Acquisition |
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0.2 |
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— |
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— |
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Less: Unamortized Debt Issuance Costs |
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3.8 |
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3.8 |
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3.8 |
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Total Long-Term Debt, net |
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721.2 |
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640.7 |
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670.5 |
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Less: Current Portion |
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40.8 |
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4.9 |
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37.9 |
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Total Long-term Debt, Less Current Portion |
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$ |
680.4 |
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$ |
635.8 |
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$ |
632.6 |
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