C004706 2026-01-01 2026-03-31 C004706 2025-12-31 C004706 2024-12-31 C004706 2025-03-31 C004706 2025-01-01 2025-03-31 C004706 ScheduleStatementOfAccumulatedOtherComprehensiveIncomeAndHedgingActivitiesAbstract 2026-01-01 2026-03-31 C004706 ScheduleStatisticsOfOperationsAbstract 2026-01-01 2026-03-31 C004706 ScheduleStatisticsOfOperationsOwnedByRespondentButOperatedByOthersAbstract 2026-01-01 2026-03-31 C004706 2026-03-31 C004706 HH97141BB09C208779766E365F177B686D 2026-01-01 2026-03-31 C004706 ferc:CrudeOilMember 2026-01-01 2026-03-31 C004706 ferc:CrudeOilTrunkMember 2026-01-01 2026-03-31 C004706 Operator-1 2026-01-01 2026-03-31 C004706 Operator-1 ferc:CrudeOilMember 2026-01-01 2026-03-31 C004706 Operator-1 ferc:CrudeOilMember 2026-01-01 2026-03-31 C004706 Operator-1 ferc:CrudeOilMember StateOfOrigin-3 2026-01-01 2026-03-31 C004706 2026-01-01 2026-03-31 C004706 StateOfOrigin-3 2026-01-01 2026-03-31 utr:bbl iso4217:USD xbrli:pure 6-Q C004706 2026 <div><p class="MsoNormal">The accompanying unaudited interim financial statements have been prepared in accordance with the accounting requirements of the Federal Energy Regulatory Commission ("FERC USA"), as set forth in its applicable Uniform System of Accounts and published accounting releases for quarterly reporting, which is a comprehensive basis of accounting other than accounting principles accepted in the United States of America ("GAAP"). Accordingly, they do not include all the information and footnotes required by FERC USA in the annual report. In accordance with FERC USA guidelines, prior year quarterly information is included in the FERC 6Q. In the opinion of management, they contain all adjustments, consisting only of normal recurring adjustments, which management considers necessary to present fairly the financial position as of March 31, 2026 and December 31, 2025; the results of operations for the three months ended March 31, 2026 and March 31, 2025; and cash flows for the three months ended March 31, 2026 and March 31, 2025, in accordance with the accounting requirements of FERC USA. The results of operations for the three months ended March 31, 2026 and March 31, 2025&#160;should not be taken as indicative of the results to be expected for the full year, due to seasonality, maintenance activities and other factors. The interim consolidated financial statements should be read in conjunction with the financial statements and notes thereto of Enbridge Transportation (IL-OK) L.L.C., presented in the Form No. 6 Annual Report filed for 2025.</p></div> 2026/Q1 Q1 2026-03-31 <div><p>1. None</p> <p>2. None</p> <p>3. None</p> <p>4. None</p> <p>5. None</p></div> 1000 427866 13338554 10966454 8533864 10965454 10966454 10965454 10966454 2860456 10966454 12033554 1305000 -1305000 12033554 -1305000 -1305000 -1305000 -1305000 -1305000 -1305000 -1305000 -1305000 Nafeesa Kassam Nafeesa Kassam Vice President, Finance 2026-06-05 Energy Center Five, 915 N. Eldridge Parkway, Suite 1100, Houston, TX 77079 Enbridge Transportation (IL-OK) L.L.C. Manager, Accounting 403-231-5937 Alan McCoy O 425 1st Street SW, Suite 200, Calgary, AB, T2P 3L8 N/A N/A 1000 11072218 11072218 5483471 11072218 11071218 5588747 11072218 4195167 4517269 427866 427866 105764 105764 105764 -322102 105764 105764 105764 11071218 105764 105764 Deferred Income Taxes 127397 4067770 4067770 127397 4195167 4517269 4517269 4517269 4517269 4517269 0 0 4517269 4517269 4517269 105764 0 882437 882437 883819 883819 882437 882437 883819 883819 Illinois 882437 882437 Oklahoma 883819 883819 1 1 3