| | FY26 P4 BLACK HILLS ELECTRIC APR 26 | BLACK HILLS SERVICE COMPANY, LLC | $176,536 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Apr 27, 2026 | Apr 1, 2026 | May 26, 2026 |
| | FY26 P4 BLACK HILLS ELECTRIC MAR 26 | BLACK HILLS SERVICE COMPANY, LLC | $180,743 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Mar 11, 2026 | Mar 1, 2026 | Mar 31, 2026 |
| | FY26 P4 BLACK HILLS ELECTRIC FEB 26 | BLACK HILLS SERVICE COMPANY, LLC | $170,465 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Mar 10, 2026 | Feb 1, 2026 | Mar 13, 2026 |
| | FY26 P4 BLACK HILLS ELECTRIC JAN 26 | BLACK HILLS SERVICE COMPANY, LLC | $187,191 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Jan 6, 2026 | Jan 1, 2026 | Jan 31, 2026 |
| | FY26 P4 BLACK HILLS ELECTRIC DEC 25 | BLACK HILLS SERVICE COMPANY, LLC | $187,514 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Jan 5, 2026 | Dec 1, 2025 | Jan 23, 2026 |
| | FY26 P4 BLACK HILLS ELECTRIC NOV 25 | BLACK HILLS SERVICE COMPANY, LLC | $204,753 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Dec 12, 2025 | Nov 1, 2025 | Nov 30, 2025 |
| | LBNF ELECTRICITY BLACK HILLS SERVICE COMPANY LLC | BLACK HILLS SERVICE COMPANY, LLC | $18,700,000 | ENERGY, DEPARTMENT OF | ENERGY, DEPARTMENT OF | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Dec 3, 2025 | Nov 17, 2025 | Dec 31, 2035 |
| | FY26 P4 BLACK HILLS ELECTRIC OCT 25 | BLACK HILLS SERVICE COMPANY, LLC | $212,021 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | Dec 3, 2025 | Oct 1, 2025 | Dec 3, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC SEP 25 SEPTEMBER 1, 2025 THROUGH SEPTEMBER 30, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $207,794 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Aug 14, 2025 | Sep 1, 2025 | Sep 30, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC AUG 25 AUGUST 1, 2025 THROUGH AUGUST 30, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $224,470 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Jul 29, 2025 | Aug 1, 2025 | Sep 15, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC JULY 25 JULY 1, 2025, THROUGH JULY 31, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $220,898 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Jul 22, 2025 | Jul 1, 2025 | Jul 31, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC JUN 25 JUNE 1, 2025 THROUGH JUNE 30, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $191,045 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Jun 17, 2025 | Jun 1, 2025 | Aug 13, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC MAY 25 MAY 1, 2025, THROUGH MAY 31, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $173,598 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Jun 10, 2025 | May 1, 2025 | Jul 14, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC APR 25 APRIL 1, 2025, THROUGH APRIL 30, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $169,230 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | May 22, 2025 | Apr 1, 2025 | Apr 30, 2025 |
| | C MARCH 1, 2025, THROUGH MARCH 31, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $162,333 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Apr 30, 2025 | Mar 1, 2025 | Mar 31, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC JAN 25 JANUARY 1, 2025 THROUGH JANUARY 31, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $168,217 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Feb 18, 2025 | Jan 1, 2025 | Mar 14, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC FEB 25 FEBRUARY 1, 2025 THROUGH FEBRUARY 28, 2025 | BLACK HILLS SERVICE COMPANY, LLC | $153,725 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Feb 4, 2025 | Feb 1, 2025 | Feb 28, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC OCT 1, 2024 - NOV 30, 2024 | BLACK HILLS SERVICE COMPANY, LLC | $339,009 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Nov 27, 2024 | Oct 1, 2024 | Feb 20, 2025 |
| | FY25 P4 BLACK HILLS ELECTRIC DEC 24 | BLACK HILLS SERVICE COMPANY, LLC | $161,785 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Nov 25, 2024 | Dec 1, 2024 | Jan 17, 2025 |
| | VISN 23 BLACK HILLS UESC | BLACK HILLS SERVICE COMPANY, LLC | $90,888,274 | VETERANS AFFAIRS, DEPARTMENT OF | VETERANS AFFAIRS, DEPARTMENT OF | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Sep 30, 2024 | Sep 30, 2024 | Feb 28, 2045 |
| | NATURAL GAS CONTRACT BASE + 9 OY FOR HINU | BLACK HILLS SERVICE COMPANY, LLC | $2,789,579 | BUREAU OF INDIAN AFFAIRS | BUREAU OF INDIAN AFFAIRS | — | 221122Electric Power Distribution | S111UTILITIES- GAS | Sep 20, 2024 | Sep 20, 2024 | Sep 30, 2034 |
| | BLACK HILLS - JUL- SEP FY2024 INCREASE FUNDS FOR AN EXPECTATION OF AN ABOVE AVERAGE TEMPERATURE INCREASE THIS SUMMER. | BLACK HILLS SERVICE COMPANY, LLC | $573,513 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Jul 9, 2024 | Jul 1, 2024 | Nov 7, 2024 |
| | BLACK HILLS ELECTRIC - MAR - JUNE 24 - FY2024 | BLACK HILLS SERVICE COMPANY, LLC | $721,677 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S112UTILITIES- ELECTRIC | May 15, 2024 | Mar 1, 2024 | Sep 30, 2024 |
| | BLACK HILLS - FEB 24- FY2024 | BLACK HILLS SERVICE COMPANY, LLC | $185,132 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | May 6, 2024 | Feb 1, 2024 | Feb 28, 2024 |
| | BLACK HILLS - JAN 24 - FY2024 | BLACK HILLS SERVICE COMPANY, LLC | $194,683 | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | FEDERAL PRISON SYSTEM / BUREAU OF PRISONS | — | 221122Electric Power Distribution | S119UTILITIES- OTHER | Mar 11, 2024 | Jan 1, 2024 | Sep 30, 2024 |