National Fuel Gas Company · NYSE:NFG
National Fuel Gas — ECOM Fall 2025, Burlington, VT
18 slides from National Fuel Gas's conference presentation, Oct 1, 2025
Slide 1: Empire Pipeline National Fuel Gas Supply Corp
Empire Pipeline National Fuel Gas Supply Corp Fall 2025 ECOM Burlington, VT
Slide 2: Gas Control Overview & Personnel
Gas Control Overview & Personnel • Primary control room in Buffalo, NY • GCOC operates 24/7: • National Fuel Supply • Empire • National Fuel Midstream • National Fuel Distribution (NY & PA) • 10 System Supervisors – 2 working at all times • 10 Gas Dispatchers – 2 working at all times 2
Slide 3: National Fuel Gas Supply Company (NFGSC) Overview
National Fuel Gas Supply Company (NFGSC) Overview NFGSC Operates: • Over 1,600 miles of transmission pipeline in TC Energy Western NY & PA Empire • 28 active storage facilities TGP/ EGTS • 26 compressor stations • Major pipeline interconnects with: Millenium • TC Energy Empire • TGP Texas Eastern TG
Slide 4: Empire System Overview
Empire System Overview Empire Operates: • Over 269 miles of transmission National pipeline in Western & Central NY EGTS Grid NYSEG NFGSC NYSEG • 3 compressor stations RG&E TC Energy TGP • Major interconnects with: • TC Energy • TGP • EGTS • Millenium • NFGSC • National Grid • NYSEG/RG&E Millenium •
Slide 5: NFGSC Top Gas Storage Inventory (MMCF)
NFGSC Top Gas Storage Inventory (MMCF) NFGSC Historical Total Storage Inventory 100% 90% 94% 94% 95% 94% 80% 81% 70% 60% 50% 40% 30% 35% 35% 29% 20% 26% 10% 0% 2021/2022 2022/2023 2023/2024 2024/2025 2025/2026 November 1st April 1st 9/17/2025 5
Slide 6: NFGSC Top Gas Storage Inventory (MMCF)
NFGSC Top Gas Storage Inventory (MMCF) Historical Storage Inventory - Injection 5 Year Average 2025 100% 95% 90% 85% 80% 75% 70% 65% 60% 55% 50% 45% 40% 35% 30% 25% 6
Slide 7: NFGSC Line X South to North
NFGSC Line X South to North 7
Slide 8: NFGSC Line X South to North
NFGSC Line X South to North Average Daily Scheduled by Month (MDth) 8
Slide 9: Line N South to North
Line N South to North 9
Slide 10: Line N South to North
Line N South to North Average Daily Scheduled by Month (MDth) 10
Slide 11: Deliveries to TC Energy - Chippawa & Niagara
Deliveries to TC Energy - Chippawa & Niagara East Aurora/Niagara: Niagara Delivery Capacity: Spur Empire 350 MMCFD Mainline 10 e6m3 Chippawa Capacity: Receipt: 800 MMCFD 22.6 e6m3 Delivery: 400 MMCFD 11.3 e6m3 11
Slide 12: Deliveries to TC Energy
Deliveries to TC Energy Chippawa Niagara 600 500 400 300 200 100 0 Average Daily Scheduled by Month (MDth) 12
Slide 13: Empire Connector South to North
Empire Connector South to North 13
Slide 14: Empire Connector South to North
Empire Connector South to North Average Daily Scheduled by Month (MDth) 14
Slide 15: Summer Power Generation (April – October)
Summer Power Generation (April – October) 15 - Data through 8/31/2025
Slide 16: 2025 Construction and Maintenance
2025 Construction and Maintenance
Slide 17: Major Construction & Maintenance Projects - Completed
Major Construction & Maintenance Projects - Completed Major Construction Projects Major Inline Inspections Mercer Compressor Station VGR Install N20 – Buffalo Station to Service Creek Rd N20B2 Ohio River Crossing Pressure Test XN – Shawnee to Porterville Line UNY Replacement Empire Connector – Corni
Slide 18: Construction & Maintenance
Construction & Maintenance *Planned service outage list trimmed to show relevant firm impacts 18
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