Summit Utilities Oklahoma Rate Selection Guide
Summit Utilities Oklahoma is a regulated natural gas distribution company serving about 57,700 customers across 36 Oklahoma counties. Acquired from CenterPoint Energy in 2022, it offers a self-service billing portal but no Green Button, EDI, or third-party API access. C&I data access is manual and authorization-based.
Summit Utilities Oklahoma Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| General Firm Sales | commercial | Customer Charge ~$3.47/mo + Distribution per CCF + GSR + riders | Small commercial sites under ~500 Mcf/yr |
| Commercial Firm Sales | commercial | Customer Charge ~$24.98/mo + Distribution per CCF + GSR + riders | Mid-size commercial (500K-36.5MMcf/yr) |
| Large/Industrial Firm Sales | industrial | Contract/declining-block distribution + GSR + riders (per tariff) | High-volume industrial loads |
| Transportation Service | industrial | Distribution-only transport charge per CCF (no GSR) | Large customers self-supplying gas |
Market Overview
Oklahoma natural gas service is fully regulated by the Oklahoma Corporation Commission. Summit Utilities Oklahoma is the exclusive regulated distributor in its 36-county territory; there is no competitive retail gas supplier choice. Tariffs and riders are filed and approved through OCC cases under Title 165 Chapter 45.
Need to pull your actual usage data to compare rates? See the Summit Utilities Oklahoma Data Access Guide →
Current Rate Schedules
Summit Oklahoma commercial gas bills combine a fixed monthly Customer Charge, a volumetric Distribution Charge (per CCF), the pass-through Gas Supply Rate (GSR), and several riders: Energy Efficiency Cost Recovery (EECR), System Safety Enhancement Rider (SSER), Weather Normalization Adjustment (WNA, applied Nov 1-Apr 30), and a Municipal Franchise Adjustment. Verified figures from the settled rate case PUD2025-000028 (effective 2/18/2026) include a $15.85 monthly increase for Commercial Firm Sales and a $2.51 increase for General Firm Sales. Reported customer charges are about $3.47/month for general customers using under 500 Mcf/year and $24.98/month for commercial customers using 500,000 cf to 36.5 MMcf/year. Distribution rates and the GSR vary by class and period; confirm exact per-CCF charges in the current OCC-filed tariff.
Effective: February 18, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| General Firm Sales | commercial | Smaller non-residential customers, generally using under 500 Mcf per year. | Monthly Customer Charge (~$3.47 reported) + volumetric Distribution Charge per CCF + Gas Supply Rate (GSR) pass-through + EECR/SSER/WNA riders. Settled case PUD2025-000028 added ~$2.51/month effective 2/18/2026. | — |
| Commercial Firm Sales | commercial | Commercial customers using roughly 500,000 cf to 36.5 MMcf per year. | Monthly Customer Charge (~$24.98 reported) + Distribution Charge per CCF + GSR + EECR/SSER/WNA riders. Settled case PUD2025-000028 added ~$15.85/month (about +1%) effective 2/18/2026. | — |
| Large Volume / Industrial Firm Sales | industrial | Large commercial and industrial customers exceeding the Commercial Firm Sales usage threshold. | Declining-block or contract-based Distribution Charge per CCF plus GSR and applicable riders; exact figures set in the OCC-filed tariff. | — |
| Transportation Service | industrial | Large C&I customers who procure gas supply independently and pay Summit only to transport it over the distribution system. | Transportation (distribution-only) charge per CCF plus applicable riders; no GSR. Terms specified in the OCC tariff. | — |
Rate Recommendations by Use Case
Multi-site commercial portfolio needing usage data
With no API or Green Button, build a manual data pipeline: download monthly bill PDFs per site and request longer histories from customer service.
Monthly CCF is the only granularity available; PDFs plus authorized manual requests are the only paths.
- Centralize portal logins per account
- Submit one annual third-party authorization per site
- Request data in Excel/CSV even though not guaranteed
Large industrial gas user seeking lower commodity cost
Evaluate Transportation Service to self-procure gas and pay Summit distribution-only, decoupling from the bundled GSR.
Transportation can reduce commodity cost for high-volume, steady loads.
- Request the transportation tariff from the OCC case system
- Model distribution-only charge vs current bundled bill
- Engage a gas marketer for supply
Energy consultant / auditor acting for a client
Obtain signed customer authorization, then submit a manual data request to Summit customer service; plan for 5-15 business day turnaround.
No automated third-party channel exists; manual authorization is mandatory.
- Use a standard data release form
- Specify exact account, date range, and format
- Renew authorization annually for ongoing engagements
Historical Rate Trends
Summit Oklahoma has filed multiple rate adjustments since acquiring the system from CenterPoint in 2022, including annual gas-cost (GSR) updates and base rate cases. The most recent settled base rate case is PUD2025-000028.
February 18, 2026
Settled base rate case PUD2025-000028: +$2.50/mo Residential, +$2.51/mo General Firm Sales, +$15.85/mo (~1%) Commercial Firm Sales.
+1%January 1, 2026
OCC-approved base rate increase of approximately $4.4 million took effect.
+4.4MOverall trend: Rising base distribution rates, with gas supply (GSR) fluctuating seasonally with market gas prices.
Next expected change: Periodic GSR updates and a possible Performance Based Rate Change Plan adjustment (Summit filed a request that would add roughly $2.59/month, ~3.2%, per customer).
Cost Optimization Strategies
Because interval data is unavailable and rates are regulated, C&I cost optimization focuses on consumption reduction, rate-class verification, transportation service for large users, and leveraging efficiency rebates.
Verify correct rate class
For: All commercial customers
Confirm the site is billed on the right firm-sales or large-volume schedule for its annual usage; the Customer Charge jumps from ~$3.47 to ~$24.98 between general and commercial classes.
Evaluate Transportation Service
For: Large C&I / industrial
Large-volume customers can self-procure gas from a marketer and pay Summit distribution-only, potentially lowering the commodity cost vs the bundled GSR.
Pursue efficiency rebates (EECR)
For: All commercial customers
Use Summit's commercial rebate and efficiency programs (funded by the EECR rider) to cut volumetric distribution and gas-supply costs.
Manage seasonal/WNA exposure
For: Heating-intensive commercial sites
Because the Weather Normalization Adjustment applies Nov 1-Apr 30, track winter usage closely and pursue weatherization/heating efficiency to limit cold-season bill volatility.
To implement these strategies, you need your 15-minute interval data. Learn how to download Summit Utilities Oklahoma interval data →
Frequently Asked Questions
Can a commercial customer get interval (hourly or 15-minute) gas data from Summit Oklahoma?▾
No. Summit Utilities Oklahoma uses monthly-read ERT meters with no AMI deployment, so only monthly consumption (in CCF) is available. C&I energy analysis must rely on monthly billing data, viewable as a 13-month history in the portal or requested for longer periods from customer service.
Does Summit Oklahoma support Green Button, EDI, or an API for energy consultants?▾
No. There is no Green Button (Download or Connect My Data), no documented EDI program, and no public API or developer portal. All third-party data access is manual and requires signed written customer authorization submitted to customer service.
How does a third party (consultant or auditor) get a C&I customer's gas data?▾
The customer must provide signed written authorization specifying account number, service address, data type, and time period. Submit it to Summit at 866-275-5265 or via mail. Expect manual delivery (PDF or email) within 5-15 business days; renew annually for ongoing access.
Is there retail gas supplier choice for Summit Oklahoma commercial customers?▾
No. Oklahoma natural gas distribution is fully regulated by the Oklahoma Corporation Commission. Summit is the sole regulated distributor in its territory, so there is no competitive gas supply shopping; rates are set by OCC rate cases and riders.
How far back does Summit Oklahoma billing history go online?▾
The portal shows the current bill plus 13 months of history with usage graphs. For older records (typically up to 36-60 months subject to SAP IS-U retention), contact customer service at 866-275-5265 with the account number and date range.
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