National Fuel Gas Distribution Corporation (NY) Data Access Guide
National Fuel Gas Distribution Corporation is the primary natural gas local distribution company (LDC) serving Western New York, including Buffalo, with roughly 604,000 New York gas customers. The utility offers customer billing portals, Mercury-device interval data, a mature ANSI X12 EDI infrastructure for ESCOs, and is rolling out Green Button Connect through New York's Integrated Energy Data Resource (IEDR) program.
How to Get Your National Fuel Gas Distribution Corporation (NY) Data: All Access Methods
| Method | 1st Party | 3rd Party | Customer Types | Data Types | Latency | Format |
|---|---|---|---|---|---|---|
| Online Billing Portal | ✓ | — | Residential & Commercial | Bills, charges, payment history, usage | Real-time / next bill cycle | PDF, web view |
| Mercury Device Interval Data | ✓ | ✓ | Select Commercial | Daily & hourly gas reads | Daily | CSV / portal download |
| EDI Transaction Sets | — | ✓ | C&I via marketer/ESCO | Enrollment, billing, meter, consumption | Daily / monthly | ANSI X12, ASCII files |
| Green Button Connect (IEDR) | ✓ | ✓ | All (planned) | Usage, billing, account, rate plan | Real-time / scheduled (planned) | Green Button XML (NAESB REQ.21) |
| Transportation Scheduling System | ✓ | ✓ | Large C&I | Nominations, DMT meter data, capacity | Daily | Web portal / ASCII files |
Billing Data Access
National Fuel customers access billing data through the National Fuel Gas Account Services online portal. Current and historical bills are available in PDF, along with a Historical Bill Comparison tool that shows 12 months of utility-vs-supplier pricing. Third parties (ESCOs, consultants) access billing data via EDI files and Data Security Agreements.
What Data Is on Your National Fuel Gas Distribution Corporation (NY) Bill
- Delivery service charges and gas supply charges
- Meter reading dates and consumption (therms/Mcf)
- Payment and billing history
- Rate class and service classification
- Historical bill vs. alternative supplier price comparison
How to Download National Fuel Gas Distribution Corporation (NY) Bills (Business & Commercial)
- 01Log into the National Fuel online account as a Commercial/Business customer
- 02Navigate to 'Your Meter' to confirm meter type (Mercury device vs. standard)
- 03For Mercury devices, open 'Meter Data Download' / 'Usage Reports' and select up to 60 days
- 04Download daily/hourly consumption data and import into energy management software
- 05For standard meters or DMT service, request consumption data via TSS Support (716-857-7232)
How to Download National Fuel Gas Distribution Corporation (NY) Bills (Residential)
- 01Visit https://www.nationalfuel.com/utility/ and select 'My Utility Account'
- 02Create an account (account number + ZIP) or log in
- 03Open 'Billing & Payment History' and select a date range
- 04Click an individual bill to open the PDF and download/save
- 05Optionally use the Historical Bill Comparison tool at https://acctsvcs.nationalfuelgas.com/HistRateCompUnauth.aspx to compare 12 months of rates
Third-Party Access to National Fuel Gas Distribution Corporation (NY) Billing Data
EDI Marketer/ESCO Programs
- 01Become a certified NY gas marketer and complete EDI testing
- 02Enroll in aggregation programs (STBA, DMT, DSS)
- 03Receive marketer credentials for marketers.natfuel.com
- 04Download ASCII billing and meter-read files per UMEG layouts
Data Security Agreement (DSA)
- 01Sign the National Fuel NY Data Security Agreement
- 02Complete Exhibit A self-attestation of information security controls
- 03Obtain customer authorization for data access
- 04Receive scoped access to confidential customer utility information
Want to understand the charges on your bill?
See the National Fuel Gas Distribution Corporation (NY) Rate Schedules & Tariff Guide →Interval Data & Smart Meters
National Fuel has not deployed system-wide AMI. The vast majority of customers have monthly-read mechanical (dial/numeric) meters. Select commercial customers have Mercury telemetering devices supporting daily and hourly reads. Interval data access for the broad customer base will expand as Green Button Connect launches under the NY IEDR program (expected 2025-2026).
How to Download National Fuel Gas Distribution Corporation (NY) Interval Data via Green Button
- 01Green Button Connect is in development via the NY IEDR program (NAESB REQ.21 / ESPI standard)
- 02When launched: log into the National Fuel utility account
- 03Locate the 'Green Button' or 'Share My Data' section
- 04Download usage data in Green Button XML, or authorize a third-party application via OAuth 2.0
Interval data is essential for rate comparison and TOU analysis.
See which National Fuel Gas Distribution Corporation (NY) rate schedule is best for your usage pattern →Third-Party API Access
National Fuel's programmatic third-party access today runs through EDI marketer files and Data Security Agreements. A standards-based API (Green Button Connect / NAESB REQ.21 ESPI with OAuth 2.0) is being implemented under the NY IEDR program, with synchronous (real-time) and asynchronous (scheduled) data delivery planned upon launch.
Available National Fuel Gas Distribution Corporation (NY) API Endpoints
| Function | Endpoint | Method | Format |
|---|---|---|---|
| Authorize (customer consent) | OAuth 2.0 authorization endpoint (NAESB REQ.21, planned) | GET | OAuth 2.0 token |
| Retrieve usage (synchronous) | ESPI UsagePoint / IntervalBlock (planned) | GET | Green Button XML / JSON |
How to Register as a National Fuel Gas Distribution Corporation (NY) API Vendor
- 01Review Green Button Connect standards (NAESB REQ.21, greenbuttonalliance.org)
- 02Contact the National Fuel IEDR program (TSSsupport@natfuel.com, 716-857-7232)
- 03Submit ESE Registration with company, security, and technical contacts
- 04Implement OAuth 2.0 + ESPI and provide redirect URLs and certificate details
- 05Test in the National Fuel sandbox, then request production credentials
EDI (Electronic Data Interchange)
National Fuel operates a mature ANSI X12 EDI infrastructure under NY PSC Opinion 01-03 (Case 98-M-0667) and the NY Uniform Business Practices. ESCOs/marketers exchange enrollment, billing, and metering data via EDI and download ASCII files from marketers.natfuel.com. Onboarding requires NY PSC marketer certification, Phase I and Phase III EDI testing, a Data Security Agreement, and a Trading Partner Agreement.
Supported National Fuel Gas Distribution Corporation (NY) EDI Transaction Sets
| Code | Name | Purpose |
|---|---|---|
| 814 | Change Order / Enrollment | Customer enrollment, switches, and rate code changes (814C) |
| 867 | Product Inventory Advice | Meter usage and customer data inventory/status |
| 810 | Invoice | Billing and invoice data |
| 820 | Payment Order / Remittance Advice | Payment processing and remittance |
How to Enroll in National Fuel Gas Distribution Corporation (NY) EDI
- 01Become a certified NY gas marketer (contact Marketer Liaison Dan Czechowicz, 716-857-6917)
- 02Complete Phase I EDI testing/certification with NY PSC
- 03Submit the NY Aggregation and Credit Application (contact Penny Donaldson, 716-857-7538) and sign the Data Security Agreement
- 04Complete Phase III EDI testing with National Fuel (TSS Support, 716-857-7232) and the Trading Partner Worksheet
- 05Sign the Trading Partner Agreement, configure connectivity (VAN/SFTP), run test transactions, and receive production credentials
Rate Schedules & Tariff Analysis
For commercial gas users, SC-3 is the default general non-residential class with a fixed customer/billing charge plus a declining-block delivery rate that rewards higher volume. Larger facilities (5,000+ Mcf/year) qualify for transportation service under SC-13 (daily metered) or SC-18 (monthly metered), where the commodity is bought from a competitive marketer and the utility charges a subclass minimum plus per-Mcf transportation rate. Delivery rates are rising under the three-year (2025-2027) NY PSC rate plan.
National Fuel Gas Distribution Corporation (NY) Rate Schedule List
| Schedule | Applicability |
|---|---|
| SC-3 General Sales & Transportation | Commercial / general non-residential customers |
| SC-13 Daily Metered Transportation (DMT) | Large C&I (5,000+ Mcf/yr), daily metered |
| SC-18 Monthly Metered Transportation (MMT) | Non-residential, monthly metered transportation |
| SC-12 Standby Sales Service | Transportation customers needing standby utility supply |
National Fuel Gas Distribution Corporation (NY) Rate Features & TOU Details
- Declining-block delivery pricing under SC-3 rewards higher consumption
- Transportation classes SC-13/SC-18 let large C&I customers source gas competitively
- Subclass minimum charges (TC 1.1-TC 4.1) scale with annual usage band
- Merchant Function Charge applies to utility-supply customers
- NGS commodity is pass-through and changes monthly
For a deeper analysis including cost optimization strategies and historical rate trends:
Read the full National Fuel Gas Distribution Corporation (NY) Rate Optimization Guide →Other Data Access Programs
Integrated Energy Data Resource (IEDR)
New York's statewide energy data platform under NY PSC Case 20-M-0082. National Fuel provides gas utility data and is implementing Green Button Connect through IEDR; Phase 1 completed March 2024, Phase 2 ongoing.
- 01Third parties access IEDR data via Green Button Connect upon launch
- 02All access is subject to customer authorization
Transportation Scheduling System (TSS)
Web portal for large C&I customers and marketers to submit gas nominations, view consumption and degree-day data, and retrieve DMT daily meter reads with role-based access.
- 01Request credentials via TSS Support (716-857-7232 / TSSsupport@natfuel.com)
- 02Submit nominations and retrieve operational and metering data online
Aggregation Programs (STBA, DMT, DSS)
Supplier Transportation Balancing & Aggregation (STBA), Daily Metered Transportation (DMT), and Delivery System Service (DSS) programs let suppliers access customer billing, metering, and capacity data for transportation customers.
- 01Enroll in the applicable aggregation program with credit qualification
- 02Receive customer billing/metering data via EDI and marketers.natfuel.com files
Limitations & Considerations
- ⚠No system-wide AMI: most customers have monthly-read mechanical meters, so granular interval data is limited to Mercury-device commercial sites.
- ⚠Green Button Connect / Connect My Data is still in development (expected 2025-2026); no production customer-facing API today.
- ⚠Programmatic third-party access currently requires becoming a certified NY marketer/ESCO with EDI testing and a Data Security Agreement.
- ⚠Mercury-device interval data retention is limited to ~60 days online.
- ⚠Gas-only utility - no electric data.
National Fuel Gas Distribution Corporation (NY) Data Access FAQ
What gas rate class applies to my commercial business on National Fuel?▾
Most general non-residential customers fall under Service Classification SC-3 (General Sales & Transportation), which combines a fixed monthly customer/billing charge (about $23.42 total delivery as of May 2026) with a declining-block volumetric delivery rate. Larger facilities using 5,000+ Mcf/year typically qualify for transportation service under SC-13 (daily metered) or SC-18 (monthly metered).
Can my business choose its natural gas supplier?▾
Yes. New York gas supply is deregulated, so commercial customers can buy the gas commodity from a licensed Energy Service Company (ESCO) while National Fuel continues to deliver the gas. Customers who do not choose an ESCO receive default utility supply at the monthly Natural Gas Supply charge ($5.06175/Mcf in May 2026) plus a Merchant Function Charge. National Fuel publishes a list of licensed NY gas suppliers.
How can my business get interval or daily gas usage data?▾
National Fuel has not deployed system-wide advanced metering, so most accounts have monthly-read meters. Select commercial sites with Mercury telemetering devices can access daily and hourly reads (60-day retention) through the online portal, and DMT (SC-13) customers can obtain daily meter data via the Transportation Scheduling System or marketer EDI files. Broader Green Button Connect access is in development under the NY IEDR program (expected 2025-2026).
How does an ESCO or energy consultant get programmatic access to National Fuel customer data?▾
Today, third parties access data through National Fuel's ANSI X12 EDI infrastructure and Data Security Agreements. The firm must become a certified NY gas marketer, complete Phase I and Phase III EDI testing, sign a Data Security Agreement and Trading Partner Agreement, and then download ASCII billing/meter files from marketers.natfuel.com. A standards-based Green Button Connect API (NAESB REQ.21, OAuth 2.0) is being implemented via IEDR.
Are National Fuel's rates going up?▾
Yes. The NY PSC approved a three-year Joint Proposal (Dec 19, 2024) raising base delivery rates in three steps - January 1, 2025, October 1, 2025, and October 1, 2026. The October 1, 2025 step increased the average residential bill about 7.2%. The Natural Gas Supply commodity charge also changes monthly with market conditions.
What is the SC-12 standby charge and when does it apply?▾
SC-12 Standby Sales Service applies when a transportation customer needs backup utility-supplied gas. As of May 2026 it carries a demand charge of $2.03313/Mcf plus a commodity charge of $4.84109/Mcf, making unplanned reliance on standby gas more expensive than contracted marketer supply - so careful nomination and supply planning is important.
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