0001111711 2026-05-12 2026-05-12 0001111711 1 2026-05-12 2026-05-12 0001111711 2 2026-05-12 2026-05-12 iso4217:USD pure shares S-3 424B2 EX-FILING FEES 333-291167 0001111711 NISOURCE INC. N/A N/A S-3 NISOURCE INC. false Debt 4.750% Notes due 2031 true 500000000 0.99947 499735000.00 0.0001381 69013.40 false Debt 5.300% Notes due 2036 true 750000000 0.99708 747810000.00 0.0001381 103272.56 1247545000.00 172285.96 0.00 0.00 172285.96 This "Calculation of Filing Fee Table" shall be deemed to update the "Calculation of Registration Fee" table in Registration Statement No. 333-291167, which was filed by NiSource Inc. (the "Registrant") on October 30, 2025 (the "Registration Statement"). The prospectus supplement to which this exhibit is attached is a final prospectus for the related offering. The registration fee is calculated in accordance Rule 457(r) under the Securities Act of 1933, as amended (the "Securities Act"). In accordance with Rules 456(b) and 457(r) under the Securities Act, the Registrant initially deferred payment of all the registration fees for the Registration Statement. See Footnote 1. 1250000000.00 true