xbrli:pure iso4217:USD utr:bbl C003649 2025-01-01 2025-12-31 C003649 ScheduleCompaniesControlledByRespondentAbstract 2025-01-01 2025-12-31 C003649 ScheduleDirectorsAbstract 2025-01-01 2025-12-31 C003649 ScheduleStatementOfAccumulatedOtherComprehensiveIncomeAndHedgingActivitiesAbstract 2025-01-01 2025-12-31 C003649 ScheduleAppropriatedRetainedIncomeAbstract 2025-01-01 2025-12-31 C003649 ScheduleInvestmentsInAffiliatedCompaniesAbstract 2025-01-01 2025-12-31 C003649 ScheduleInvestmentsInCommonStocksOfAffiliatedCompaniesAbstract 2025-01-01 2025-12-31 C003649 ScheduleInvestInComStocksOfAffiliatedCoCoControlledDirectlyByRespOtherThanThroughTitleToSecuritiesAbstract 2025-01-01 2025-12-31 C003649 ScheduleUndividedJointInterestPropertyAbstract 2025-01-01 2025-12-31 C003649 ScheduleAccruedDepreciationUndividedJointInterestPropertyAbstract 2025-01-01 2025-12-31 C003649 ScheduleAmortizationBaseAndReserveAbstract 2025-01-01 2025-12-31 C003649 ScheduleNoncarrierPropertyAbstract 2025-01-01 2025-12-31 C003649 ScheduleOtherDeferredChargesAbstract 2025-01-01 2025-12-31 C003649 ScheduleLongTermDebtAbstract 2025-01-01 2025-12-31 C003649 ScheduleAnalysisOfFederalIncomeAndOtherTaxesDeferredAbstract 2025-01-01 2025-12-31 C003649 ScheduleCapitalStockChangesDuringTheYearAbstract 2025-01-01 2025-12-31 C003649 ScheduleAdditionalPaidInCapitalAbstract 2025-01-01 2025-12-31 C003649 ScheduleIncomeFromNoncarrierPropertyAbstract 2025-01-01 2025-12-31 C003649 SchedulePaymentsForServicesRenderedByOtherThanEmployeesAbstract 2025-01-01 2025-12-31 C003649 ScheduleMilesOfPipelineOperatedAtEndOfYearAbstract 2025-01-01 2025-12-31 C003649 South Bow Infrastructure Inc., 1 2025-01-01 2025-12-31 C003649 South Bow Infrastructure Inc., 1 2025-12-31 C003649 N/A, 2025-01-01 2025-12-31 C003649 President, Richard J. Prior 2025-01-01 2025-12-31 C003649 Vice-President, Blaine Trout 2025-01-01 2025-12-31 C003649 Vice-President, Gary Salsman 2025-01-01 2025-12-31 C003649 Corporate Secretary, Kate Fischer 2025-01-01 2025-12-31 C003649 Assistant Corporate Secretary, Patty Wilson 2025-01-01 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 2025-12-31 C003649 2024-12-31 C003649 2024-01-01 2024-12-31 C003649 2023-12-31 C003649 Other Non Cash Adjustments 2025-01-01 2025-12-31 C003649 Other: Prepayment 2025-01-01 2025-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 Gross Additions to Nonutility Plant 2025-01-01 2025-12-31 C003649 (Less) Allowance for Other Funds Used During Construction 2025-01-01 2025-12-31 C003649 Other (provide details in footnote): 2025-01-01 2025-12-31 C003649 Operating Oil Supply 2025-01-01 2025-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 Distributions 2025-01-01 2025-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 Net Increase (Decrease) in Short Term Debt from Affiliates 2025-01-01 2025-12-31 C003649 Net Increase (Decrease) in Short Term Debt from Affiliates 2024-01-01 2024-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 Other 2025-01-01 2025-12-31 C003649 South Bow (USA) LP , Leased Pipeline Capacity and Other Charges 2025-01-01 2025-12-31 C003649 South Bow Marketing USA Ltd., Operating Revenues 2025-01-01 2025-12-31 C003649 Other Affiliates, Minor Accounts, less than $500,000 2025-01-01 2025-12-31 C003649 South Bow (USA) LP , Leased Pipeline Capacity and Other Charges 2025-12-31 C003649 South Bow Marketing USA Ltd., Operating Revenues 2025-12-31 C003649 Other Affiliates, Minor Accounts, less than $500,000 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 0 2025-01-01 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 South Bow USA Infrastructure Holdings LLC 2025-01-01 2025-12-31 C003649 South Bow (USA) LP 2025-01-01 2025-12-31 C003649 South Bow Marketing USA Ltd. 2025-01-01 2025-12-31 C003649 South Bow Infra Ops Inc. 2025-01-01 2025-12-31 C003649 Other Affiliates 2025-01-01 2025-12-31 C003649 South Bow USA Infrastructure Holdings LLC 2025-12-31 C003649 South Bow (USA) LP 2025-12-31 C003649 South Bow Marketing USA Ltd. 2025-12-31 C003649 South Bow Infra Ops Inc. 2025-12-31 C003649 Other Affiliates 2025-12-31 C003649 South Bow Infrastructure Inc. 2025-01-01 2025-12-31 C003649 South Bow Infrastructure Inc. 2025-12-31 C003649 Parent, Capital Contribution 2025-01-01 2025-12-31 C003649 ferc:CrudeOilMember 2024-01-01 2024-12-31 C003649 ferc:CrudeOilMember 2025-01-01 2025-12-31 C003649 ferc:InterstateTransportationMember 2024-01-01 2024-12-31 C003649 ferc:InterstateTransportationMember 2025-01-01 2025-12-31 C003649 Alabama 2025-01-01 2025-12-31 C003649 Alaska 2025-01-01 2025-12-31 C003649 Arizona 2025-01-01 2025-12-31 C003649 Arkansas 2025-01-01 2025-12-31 C003649 California 2025-01-01 2025-12-31 C003649 Colorado 2025-01-01 2025-12-31 C003649 Connecticut 2025-01-01 2025-12-31 C003649 Delaware 2025-01-01 2025-12-31 C003649 Florida 2025-01-01 2025-12-31 C003649 Georgia 2025-01-01 2025-12-31 C003649 Hawaii 2025-01-01 2025-12-31 C003649 Idaho 2025-01-01 2025-12-31 C003649 Illinois 2025-01-01 2025-12-31 C003649 Indiana 2025-01-01 2025-12-31 C003649 Iowa 2025-01-01 2025-12-31 C003649 Kansas 2025-01-01 2025-12-31 C003649 Kentucky 2025-01-01 2025-12-31 C003649 Louisiana 2025-01-01 2025-12-31 C003649 Maine 2025-01-01 2025-12-31 C003649 Maryland 2025-01-01 2025-12-31 C003649 Massachusetts 2025-01-01 2025-12-31 C003649 Michigan 2025-01-01 2025-12-31 C003649 Minnesota 2025-01-01 2025-12-31 C003649 Mississippi 2025-01-01 2025-12-31 C003649 Missouri 2025-01-01 2025-12-31 C003649 Montana 2025-01-01 2025-12-31 C003649 Nebraska 2025-01-01 2025-12-31 C003649 Nevada 2025-01-01 2025-12-31 C003649 New Hampshire 2025-01-01 2025-12-31 C003649 New Jersey 2025-01-01 2025-12-31 C003649 New Mexico 2025-01-01 2025-12-31 C003649 New York 2025-01-01 2025-12-31 C003649 North Carolina 2025-01-01 2025-12-31 C003649 North Dakota 2025-01-01 2025-12-31 C003649 Ohio 2025-01-01 2025-12-31 C003649 Oklahoma 2025-01-01 2025-12-31 C003649 Oregon 2025-01-01 2025-12-31 C003649 Pennsylvania 2025-01-01 2025-12-31 C003649 Rhode Island 2025-01-01 2025-12-31 C003649 South Carolina 2025-01-01 2025-12-31 C003649 South Dakota 2025-01-01 2025-12-31 C003649 Tennessee 2025-01-01 2025-12-31 C003649 Texas 2025-01-01 2025-12-31 C003649 Utah 2025-01-01 2025-12-31 C003649 Vermont 2025-01-01 2025-12-31 C003649 Virginia 2025-01-01 2025-12-31 C003649 Washington 2025-01-01 2025-12-31 C003649 West Virginia 2025-01-01 2025-12-31 C003649 Wisconsin 2025-01-01 2025-12-31 C003649 Wyoming 2025-01-01 2025-12-31 C003649 District of Columbia 2025-01-01 2025-12-31 C003649 Other (Specify) 2025-01-01 2025-12-31 C003649 Business Tax 2025-01-01 2025-12-31 C003649 N/A 2025-01-01 2025-12-31 C003649 Minor Items, each less than $250,000 2025-01-01 2025-12-31 C003649 Minor Items, each less than $250,000 2025-01-01 2025-12-31 C003649 N/A, 2025-01-01 2025-12-31 C003649 ferc:CrudeOilTrunkMember 2025-01-01 2025-12-31 C003649 Cushing OK, ferc:CrudeOilMember 2025-01-01 2025-12-31 2025-12-31 Q4 Marketlink, LLC 2010-09-02 Marketlink, LLC Delaware N/A N/A N/A N/A 2025-12-31 Q4 2025-12-31 Q4 <div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">1) N/A</span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">2) N/A</span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">3) N/A</span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">4) Refer to Notes to Financial Statements, Page 122, Note 6.</span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">5) N/A</span></div> 2025-12-31 Q4 2025-12-31 Q4 <div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:112%">1.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:112%;padding-left:8.84pt">Organization and Operations</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">Marketlink, LLC (Marketlink or the Company), is a Delaware limited liability company and a wholly owned subsidiary of South Bow Infrastructure Inc. Marketlink offers crude oil transportation services from Cushing, Oklahoma to the United States (U.S.) Gulf Coast. To provide these transportation services, Marketlink leases pipeline capacity from South Bow (USA) LP and has constructed ancillary interconnection facilities at Cushing, including tanks and metering facilities.</span></div><div style="text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">Marketlink’s activities are subject to regulation by various authorities including, but not limited to, the Federal Energy Regulatory Commission (FERC). Regulatory bodies exercise statutory authority over matters such as construction, operations, rates and ratemaking, and agreements with customers.</span></div><div style="margin-top:2pt;padding-left:18pt;text-align:justify"><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Spinoff from TC Energy</span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">On July 27, 2023, TC Energy Corporation ("TC Energy" or the "Former Parent") announced plans to separate into two independent, investment-grade, publicly listed companies through the proposed spinoff of its Liquids Pipelines business (the "Spinoff"). On October 1, 2024, the Company completed the spinoff from its Former Parent and formed a new publicly traded Company named South Bow Corporation.</span></div><div style="text-align:justify"><span><br/></span></div><div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:120%">2.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:120%;padding-left:8.84pt">Significant Accounting Policies</span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">The financial statements of the Company are prepared in accordance with accounting requirements of the FERC, as set forth in the applicable Uniform System of Accounts and published accounting releases, which is a comprehensive basis of accounting other than accounting principles generally accepted in the U.S. </span></div><div><span><br/></span></div><div style="text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">In preparing these financial statements, Marketlink is required to make estimates and assumptions that affect both the amount and timing of recording assets, liabilities, revenues and expenses since the determination of these items may be dependent on future events. The Company uses the most current information available and exercises careful judgment in making these estimates. In the opinion of management, these financial statements have been properly prepared within reasonable limits of materiality and conform in all material respects to the Uniform System of Accounts.</span></div><div style="padding-left:18pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Carrier Property</span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">Carrier property is carried at cost. Depreciation is calculated on a straight-line basis once the assets are ready for their intended use. Carrier property is depreciated at various rates that have been filed with and accepted by the FERC. </span></div><div style="padding-left:18pt"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Revenue </span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">The Company’s revenues are generated from contractual arrangements for committed capacity and from the transportation of crude oil, under a tariff regulated by the FERC, as well as from providing crude oil storage services. Revenues earned from contracted capacity arrangements are recognized ratably over the term of the contract regardless of the amount of crude oil that is transported. Revenues for volumetric-based services are recognized when the service is performed. The Company does not take ownership of the crude oil that it transports for customers.</span></div><div style="margin-top:2pt;padding-right:18pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:95%">Income Tax</span></div><div style="margin-top:3pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">The Company is not subject to federal or state income tax. The income tax effect of the Company’s activities accrues to its parent and has accordingly not been recorded in the Company’s financial statements.</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:115%">3.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:115%;padding-left:8.84pt">Taxes Payable</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">Taxes payable consists of pipeline property taxes.</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:115%">4.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:115%;padding-left:9pt">Affiliated Party Transactions</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-top:2pt"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Operating and Administrative Services</span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">At December 31, 2025, South Bow Infrastructure Holdings Ltd. (a wholly-owned subsidiary of South Bow PipeLines Limited (SB PipeLines)), through wholly-owned subsidiaries, was responsible for developing and operating the Company’s facilities. Marketlink was charged by SB PipeLines and its wholly-owned subsidiaries for services provided.</span></div><div style="margin-top:3pt;text-align:justify"><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Pipeline Capacity</span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">Marketlink has leased pipeline capacity on South Bow (USA) LP’s system from Cushing, Oklahoma to the U.S. Gulf Coast (Gulf Coast Leg) to provide crude oil transportation services. Marketlink’s lease payments to South Bow (USA) LP are calculated based on its proportional share of the Gulf Coast Leg’s total capacity and cost of service.</span></div><div><span><br/></span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">At December 31, 2025, South Bow Marketing USA Ltd. (SBMU), a wholly owned subsidiary of South Bow USA Infrastructure Holdings LLC. (South Bow USA), had agreements for pipeline and storage capacity with Marketlink. SBMU also transports uncommitted volumes on Marketlink.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-style:italic;font-weight:700;line-height:112%">Cash Management</span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">At December 31, 2025, a cash management agreement was in place between Marketlink and South Bow USA, a wholly-owned subsidiary of South Bow Infrastructure Holdings Ltd. Monies advanced under the agreement were considered to be a loan, accruing interest and repayable on demand. Marketlink received interest on monies advanced to South bow USA at the rate of interest earned by South Bow USA on its short-term cash investments. Marketlink paid interest on monies advanced from South Bow USA based on South Bow USA’s short-term borrowing costs.</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:115%">5.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:115%;padding-left:8.84pt">Commitments and Contingencies</span></div><div style="margin-top:2pt;padding-right:18pt"><span><br/></span></div><div style="margin-top:3pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">At December 31, 2025, the Company had no commitments.</span></div><div style="margin-bottom:9pt;padding-left:18pt;padding-right:18pt;text-indent:-18pt"><span style="color:#000000;font-family:'Arial',sans-serif;font-size:11pt;font-weight:700;line-height:115%">6.</span><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:700;line-height:115%;padding-left:8.84pt">Legal Matters</span></div><div style="margin-top:2pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',serif;font-size:12pt;font-weight:400;line-height:112%">The Company is from time to time subject to litigation incidental to its business. The Company is not aware of any contingent liabilities that would have a material adverse effect on the Company’s financial condition, results from operations, or cash flows. The Company is not aware of any material contingent liabilities with respect to compliance with applicable environmental laws and regulations.</span></div> 2025-12-31 Q4 2025-12-31 Q4 C003649 6 Marketlink, LLC 2025 Q4 Not Applicable 920 Memorial City Way, Suite 800, Houston, Texas 77024 Alison Cowie Manager Suite 900, 707 5 Street SW, Calgary, Alberta T2P 1V8 403-975-5871 O 2025-12-31 Blaine Trout Vice President Blaine Trout 2026-03-31 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Not Prepared South Bow Infrastructure Inc. DE 1.00 N/A President Vice-President 1 2 Vice-President 3 Corporate Secretary 4 Assistant Corporate Secretary 5 Richard J. Prior Blaine Trout Gary Salsman Kate Fischer Patty Wilson 920 Memorial City Way, Suite 800, Houston, Texas USA 920 Memorial City Way, Suite 800, Houston, Texas USA 920 Memorial City Way, Suite 800, Houston, Texas USA 707 5 St. S.W., Suite 900, Calgary, Alberta CA 920 Memorial City Way, Suite 800, Houston, Texas USA N/A 35317819 6457282 9563568 13279962 637 44882024 19737244 270602394 270447857 66880459 60214220 203721935 210233637 9858953 9858953 213580888 220092590 258462912 239829834 244788900 114566806 532175 429338 1892697 1903611 247213772 116899755 247213772 116899755 588000100 588000100 -576750960 -465070021 11249140 122930079 258462912 239829834 205757470 233738664 315614506 336288157 -109857036 -102549493 81808 319590 1808725 1316746 96986 42223 -1823903 -1039379 -111680939 -103588872 -111680939 -103588872 -111680939 -103588872 -111680939 -103588872 -465070021 -361481149 111680939 103588872 111680939 103588872 -111680939 -103588872 -576750960 6666239 6669232 Other Non Cash Adjustments 25144143 -1730831 -1023628 1863884 Other: Prepayment -637 -131183108 -93324925 154537 6936 Other Gross Additions to Nonutility Plant 28 29 (Less) Allowance for Other Funds Used During Construction 30 Other (provide details in footnote): 31 Operating Oil Supply 32 154537 6936 Other -154537 -6936 40000000 Other Distributions 63 64 Other Net Increase (Decrease) in Short Term Debt from Affiliates 67 68 131337645 53331861 131337645 93331861 Other Other 131337645 93331861 South Bow (USA) LP South Bow Marketing USA Ltd. 1 2 Other Affiliates 3 Leased Pipeline Capacity and Other Charges Operating Revenues Minor Accounts, less than $500,000 27884733 7141961 291125 N/A 0 0 0 0 0 0 0 0 71035 71035 3580891 3580891 2948750 2948750 995723 995723 186989607 186989607 75669658 75669658 91270 91270 43102 43102 57821 57821 270447857 270447857 154537 154537 154537 154537 154537 0 154537 154537 154537 270447857 154537 0 154537 154537 270602394 0 849437 71977 921414 0.0201 424970 64323 489293 0.0218 2.1600 195845 24288 220133 0.0244 43532793 3905624 -1 47438416 0.0248 15129672 2583034 2 17712708 0.0245 30088 4563 34651 0.0500 31740 8621 40361 0.2000 19675 3611 197 23483 0.0667 60214220 6666041 198 66880459 60214220 6666041 198 66880459 N/A N/A N/A South Bow USA Infrastructure Holdings LLC South Bow (USA) LP 1 2 South Bow Marketing USA Ltd. 3 South Bow Infra Ops Inc. 4 Other Affiliates 5 Cash Management and Other Charges Leased Pipeline Capacity and Other Charges Intercompany Operating Revenue Accrual Reversal – SB Marketing Allocated Operating/Capital Costs and Labour Charges Minor Accounts, less than $500,000 196025306 41329952 6688280 303096 442266 South Bow Infrastructure Inc. 588000100 588000100 Parent Capital Contribution 231971186 203782853 231971186 203782853 1767478 1974617 1767478 1974617 233738664 205757470 231971186 203782853 231971186 203782853 231971186 203782853 Alabama Alaska 1 2 Arizona 3 Arkansas 4 California 5 Colorado 6 Connecticut 7 Delaware 8 Florida 9 Georgia 10 Hawaii 11 Idaho 12 Illinois 13 Indiana 14 Iowa 15 Kansas 16 Kentucky 17 Louisiana 18 Maine 19 Maryland 20 Massachusetts 21 Michigan 22 Minnesota 23 Mississippi 24 Missouri 25 Montana 26 Nebraska 27 Nevada 28 New Hampshire 29 New Jersey 30 New Mexico 31 New York 32 North Carolina 33 North Dakota 34 Ohio 35 Oklahoma 36 Oregon 37 Pennsylvania 38 Rhode Island 39 South Carolina 40 South Dakota 41 Tennessee 42 Texas 43 Utah 44 Vermont 45 Virginia 46 Washington 47 West Virginia 48 Wisconsin 49 Wyoming 50 District of Columbia 51 Other (Specify) 52 Business Tax 53 3787380 3787380 3787380 N/A Minor Items, each less than $250,000 81808 Minor Items, each less than $250,000 96986 N/A 308948267 329618925 6666041 6669232 486058 485854 835497 755002 182462767 193039490 1 30990651 28522171 213453419 221561661 0.4619 0.4605 0.5381 0.5395 0.0493 0.0492 0.1043 0.1142 0.0789 0.0843 4860691 5019834 11979823 13650613 16840514 18670447 3649566 3752150 0.2280 0.2161 337425943 359951610 205757470 233738664 205665728 224717519 99829849194 108659695421 23363 23363 23363 440014 440014 440014 371625 371625 371625 301999286 301999286 301999286 302834288 302834288 302834288 67918 67918 67918 1837642 1837642 1837642 6666239 6666239 6666239 211145 211145 211145 3787380 3787380 209894 209894 209894 12780218 12780218 12780218 315614506 315614506 Cushing OK 205822620 205822620 205665728 205665728 205822620 205822620 205665728 205665728 205822620 205822620 205665728 205665728 99829849194 205665728 The Workiva Platform The Respondent does not have any Directors. Includes total interstate operating revenues per FERC Order No. 783-A.