2025 Pipeline Customer Meeting Updates and Maintenance Plans

Vector Pipeline Customer Meeting January 2025 1

Brian Schultz Manager, Marketing & Project Development 2

2025 Maintenance Cleaning pig run 1 cleaning tool on Athens to Milford Junction segment Tentatively scheduled mid June (1 day impact to Firm) Washington Unit 200 Early Overhaul Engine change tentatively scheduled early April 5-day unit outage (no expected impact) Ray Interconnect FCV whisper trim cleaning completed in September and October 2024 Capacity currently capped at 120,000 Dth/day No other major outages planned at this time for 2025 3

Power Plant Deliveries Monthly Average January 2019 - December 2024 500,000 450,000 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 - Apr-19 May-19 Apr-20 May-20 Apr-21 May-21 Apr-22 May-22 Apr-23 May-23 Apr-24 May-24 Oct-19 Dec-19 Oct-20 Dec-20 Oct-21 Dec-21 Oct-22 Dec-22 Oct-23 Dec-23 Oct-24 Dec-24 Mar-19 Mar-20 Mar-21 Mar-22 Mar-23 Mar-24 Jan-19 Aug-19 Jan-20 Aug-20 Jan-21 Aug-21 Jan-22 Aug-22 Jan-23 Aug-23 Jan-24 Aug-24 Jun-19 Jun-20 Jun-21 Jun-22 Jun-23 Jun-24 Feb-19 Jul-19 Sep-19 Nov-19 Feb-20 Jul-20 Sep-20 Nov-20 Feb-21 Jul-21 Sep-21 Nov-21 Feb-22 Jul-22 Sep-22 Nov-22 Feb-23 Jul-23 Sep-23 Nov-23 Feb-24 Jul-24 Sep-24 Nov-24 4 BWEC SJEC GEC Jackson Eastern Pow Yearly Avg

Winter Peak Day 2024/25 December 21st, 2024 Michigan Receipts Wash 10 Bluewater DTE Gas/ NEXUS Rec 1,511 Total send out 2,537 MDth APL/NBPL Rec 309 St. Clair 1,556 Guardian 358 NIPSCO 168 CECO- Hartland 0 Peoples 30 CECO-Ray 75 BWEC 132 Rover 632 SJEC 123 Cass. Marengo & Jackson 95 5

Past Peak Day Volume by Year 6

2024/25 Winter Trends High receipts from Michigan storage Averaging ~650,000 Dth/d from Wash10 for month of January Changing weather patterns present operational challenges Michigan storage to Dawn path showing day to day value with IT capacity available 7

Pete Cianci President 8

Rate Case Update What has Happened FERC initiated a Section 5 Rate Case on 9/19/24. Vector has received 3 sets of data requests from FERC Trial Staff to date 168 Questions with subparts Still working on responses to the last set Vector filed the required Cost & Revenue Study on 12/03/24 Vector received a limited time settlement offer from FERC Trial Staff on 12/10/24 Vector filed a petition for review in Sixth Circuit Court of Appeals, challenging FERC s initiation of the proceeding 9

Rate Case Update Upcoming Events Staff / Intervenor Testimony 3/18/25 Vector Answering Testimony 5/7/25 Staff / Intervenor Cross-testimony & rebuttal testimony 6/18/25 Hearing 7/15/25 Initial Briefs 9/2/25 Reply Briefs 9/23/25 Initial Decision 10/28/25 Commission Order implementing rates estimated 4/27 10

Rate Case Update Vector s Perspective Vector s preference is to reach an amicable settlement with its Shippers Vector is unwilling to settle at the rate proposed by the FERC Trial Staff Limited Time Offer of ~$0.072/dth. Although the required Cost & Revenue Study resulted in a rate of ~$0.121/dth, Vector is unwilling to settle at that rate, and Vector's current rate structure is out of date. Vector is considering adding more rate zones to better reflect how its system is used today, which includes bi-directional transportation on a long-haul and short-haul basis 11

Rate Case Update Intro to new rate development Vector is considering breaking the system into more zones (3 or even possibly 4 zones). Rate zones will be additive and the potential separations points could be as follows; Zone 1: Joliet to Indiana/Michigan Border Zone 2: Indiana/Michigan Border to Ingham Co./ Livingston Co. Border Zone 3: Ingham Co./ Livingston Co. Border to International Border Shippers will only be paying for the portion of the system that they are using 12

Rate Case Update Rate Structure Vector s Current Rate Structure - 2 non-additive Zones - Zone 1: Joliet to NIPSCO Crown Point / Rate ~ $0.037/dth - Zone 2: Joliet to the International Border / Rate ~ $0.232/dth Potential Vector Zonal rates Zone 1 & 2: rate will be similar for each of these 2 zones. Higher Net Plant and lower throughput than Zone 3 Zone 3: lower rate due to lower cost of service and higher throughput. Primary Impact to Shippers: Westbound Recourse Shippers will see a 10-20% decrease in rates. Discounted short-haul may also receive a discounted rate. 13

Vector Pipeline System Map Existing Zones Vector Pipeline TM Zone 2 Vector Canada Zone 1 Lake Huron N St. Clair International Border (M.P. 333.4) MICHIGAN Highland Compressor (M.P. 269.1) Washington Compressor (M.P. 305.6) Lake Michigan Hartland (M.P. 256.6) Delivery ONTARIO E F D B C A 42 Pipeline ** WISCONSIN Dawn (M.P. 348.4) Delivery/Receipt Lansing Jackson 36 Leased Line * Sheridan (M.P. 194.2) Receipt (M.P. 217.4) Delivery G H I J Detroit Milford Junction (M.P. 270.5) Delivery/Receipt MGU-Marshall (M.P. 186.5) Delivery Rover (M.P. 240.3) Receipt Cassopolis (M.P. 124.8) Delivery Marengo (M.P. 193.9) Delivery Chicago Lake Erie Springville Compressor (M.P. 86.1) Joliet Compressor (M.P. 0.0) 42 Pipeline* Crete (M.P. 29.6) Delivery Athens Compressor (M.P. 168.9) St. Joseph Energy Center (M.P. 97.5) Delivery LaPorte (M.P. 80.7) Delivery ILLINOIS Greenfield Energy (M.P. 335.6) Delivery Belle River (M.P. 330.1) Delivery/Receipt G A D Washington 10 (M.P. 305.6) Delivery/Receipt Peoples (M.P. 7.9) Delivery Courtright (M.P. 335.6) Delivery H Ray (M.P. 307.5) Delivery E B Vector - Bluewater Energy Center (BWEC) (M.P. 332.3) Delivery Crown Point (M.P. 43.0) Delivery Alliance, Northern Border & Guardian (M.P. 0.0) Receipt/Delivery Greenfield South (M.P. 336.2) Delivery I C Lenox Bluewater (M.P. 312.8) Delivery/Receipt DTE Gas - Bluewater Energy Center (BWEC) (M.P. 332.3) Delivery (sourced off- system from DTE Gas) F INDIANA Sombra (M.P. 344.4) Delivery/Receipt J * Vector facilities located in the United States are owned/leased by Vector Pipeline L.P. ** Vector facilities located in Ontario are owned by Vector Pipeline Limited Partnership. OHIO Revised December 11th, 2023

Vector Pipeline System Map Potential 3 Zones Vector Pipeline TM Zone 2 Zone 3 Zone 1 Vector Canada Lake Huron N St. Clair International Border (M.P. 333.4) MICHIGAN Highland Compressor (M.P. 269.1) Washington Compressor (M.P. 305.6) Lake Michigan Hartland (M.P. 256.6) Delivery ONTARIO E F D B C A 42 Pipeline ** WISCONSIN Dawn (M.P. 348.4) Delivery/Receipt Lansing Jackson 36 Leased Line * Sheridan (M.P. 194.2) Receipt (M.P. 217.4) Delivery G H I J Detroit Milford Junction (M.P. 270.5) Delivery/Receipt MGU-Marshall (M.P. 186.5) Delivery Rover (M.P. 240.3) Receipt Cassopolis (M.P. 124.8) Delivery Marengo (M.P. 193.9) Delivery Chicago Lake Erie Springville Compressor (M.P. 86.1) Joliet Compressor (M.P. 0.0) 42 Pipeline* Crete (M.P. 29.6) Delivery Athens Compressor (M.P. 168.9) St. Joseph Energy Center (M.P. 97.5) Delivery LaPorte (M.P. 80.7) Delivery ILLINOIS Greenfield Energy (M.P. 335.6) Delivery Belle River (M.P. 330.1) Delivery/Receipt G A D Washington 10 (M.P. 305.6) Delivery/Receipt Peoples (M.P. 7.9) Delivery Courtright (M.P. 335.6) Delivery H Ray (M.P. 307.5) Delivery E B Vector - Bluewater Energy Center (BWEC) (M.P. 332.3) Delivery Crown Point (M.P. 43.0) Delivery Alliance, Northern Border & Guardian (M.P. 0.0) Receipt/Delivery Greenfield South (M.P. 336.2) Delivery I C Lenox Bluewater (M.P. 312.8) Delivery/Receipt DTE Gas - Bluewater Energy Center (BWEC) (M.P. 332.3) Delivery (sourced off- system from DTE Gas) F INDIANA Sombra (M.P. 344.4) Delivery/Receipt J * Vector facilities located in the United States are owned/leased by Vector Pipeline L.P. ** Vector facilities located in Ontario are owned by Vector Pipeline Limited Partnership. OHIO Revised December 11th, 2023

Rate Case Update Path Forward / Next Steps Obtain feedback on zonal rate structure concept. Work with interested Shippers towards settlement. Share more defined zonal rate structure with interested parties. Alternatively, Vector is willing to consider settling under the current rate structure Vector s goal is to reach settlement expeditiously However, Vector is prepared to fully prosecute the Section 5 case and possibly initiate a Section 4 rate case. 16

Rate Case Update Closing Any questions or comments? Thank you for attending!! 17