CoServ Gas Ltd. Rate Selection Guide
CoServ Gas Ltd. is the natural gas distribution affiliate of Denton County Electric Cooperative, serving more than 171,000 gas meters across North Texas and ranking as the fifth-largest gas utility in the state. Commercial and industrial customers access billing and usage data through the SmartHub portal, with Green Button export, a SmartHub REST API, and a Letter of Authorization process for third-party energy managers.
CoServ Gas Ltd. Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Commercial Gas | commercial | $1.3501/Ccf all-in (May 2026); $40 customer charge + $8.04 IRA | Most commercial gas accounts |
| Public Authority Gas | commercial | $1.3725/Ccf all-in (May 2026) | Government / public authority facilities |
| Industrial Gas | industrial | Per Tariff Section 202.5 (customer charge + volumetric, PGF/WNA) | Large industrial gas loads |
Market Overview
CoServ Gas operates as a regulated natural gas local distribution company (LDC) under the jurisdiction of the Railroad Commission of Texas (RRC), with city-by-city tariffs applying within incorporated areas. There is no competitive retail gas shopping for CoServ Gas customers — service and rates are set by published tariff. Rate changes flow through statement-of-intent rate cases and interim rate adjustment (IRA) filings, plus monthly Purchased Gas Factor (PGF) and Weather Normalization Adjustment (WNA) mechanisms.
Need to pull your actual usage data to compare rates? See the CoServ Gas Ltd. Data Access Guide →
Current Rate Schedules
CoServ Gas C&I rates consist of a fixed monthly customer charge plus a volumetric usage (energy) charge per Ccf, adjusted monthly by the Purchased Gas Factor (PGF) and Weather Normalization Adjustment (WNA), plus applicable taxes and an interim rate adjustment (IRA) rider. As of May 2026, the Commercial all-in rate was $1.3501 per Ccf and the Public Authority rate was $1.3725 per Ccf, both on a $40.00 monthly customer charge with an $8.04 IRA rider. (CoServ also serves electric via its cooperative affiliate; those electric C&I schedules are included for reference but gas is the regulated service for CoServ Gas Ltd.)
Effective: May 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Commercial Gas Rate | commercial | Commercial natural gas customers in CoServ Gas service territory. | $40.00 monthly customer charge per meter + $8.04 IRA rider; volumetric usage charge $0.08510/Ccf PLUS Purchased Gas Factor (PGF) PLUS/MINUS Weather Normalization Adjustment (WNA). All-in rate $1.3501/Ccf as of May 2026. | — |
| Public Authority Gas Rate | commercial | Public authority / governmental gas customers. | $40.00 monthly customer charge per meter + $8.04 IRA rider; volumetric $0.08510/Ccf PLUS PGF PLUS/MINUS WNA. All-in rate $1.3725/Ccf as of May 2026. | — |
| Industrial Gas Rate | industrial | Industrial gas customers; refer to Section 202.5 of the Tariff for Gas Service. | Fixed customer charge plus volumetric usage charge per Ccf with PGF and WNA adjustments. Specific industrial $ figures are set in the published Tariff for Gas Service rather than the public rate page — see tariff book. | — |
| CoServ Electric Industrial Rate (affiliate, reference) | industrial | Electric customers (CoServ Electric affiliate) requiring 35 kW or more of maximum demand — included for reference. | $55.00 monthly customer charge; energy base rate $0.079836/kWh (with PCRF/SCRF adjustments); demand charge $13.04/kW May-Oct and $10.04/kW Nov-Apr. | — |
| CoServ Electric Commercial Rate (affiliate, reference) | commercial | Electric commercial customers under 35 kW max demand — included for reference. | $30.00 monthly customer charge; energy base rate $0.133524/kWh (with PCRF/SCRF adjustments); ~$0.132024/kWh all-in as of May 2026. | — |
Rate Recommendations by Use Case
Commercial facility (office, retail, multifamily)
Standard commercial gas service with a modest fixed charge and PGF-driven volumetric rate.
The Commercial Gas Rate is the default for commercial accounts; spend tracks Ccf usage and the monthly PGF.
- Export Green Button usage monthly for benchmarking
- Validate PGF and WNA line items against the tariff
- Authorize your energy consultant via LOA
Industrial / process gas load
Industrial gas service for larger process loads; rate set in Tariff Section 202.5.
Industrial accounts fall under the Industrial Gas Rate; commodity (PGF) is still the dominant cost.
- Pull the Tariff for Gas Service for exact industrial charges
- Track process gas usage at meter-read granularity
- Consider the SmartHub API for automated multi-meter monitoring
Public authority / government facility
Public authority gas rate for schools, municipal, and government facilities.
Government and public authority facilities use the Public Authority Gas Rate ($1.3725/Ccf all-in, May 2026).
- Confirm public-authority eligibility on the account
- Benchmark seasonal heating usage with WNA in mind
- Use SmartHub for centralized multi-account bill access
Historical Rate Trends
CoServ Gas filed an Interim Rate Adjustment with the Railroad Commission of Texas on July 18, 2025, raising the customer charge component, following its last base-rate filing in July 2023. Monthly the all-in rate also moves with the Purchased Gas Factor (PGF) and Weather Normalization Adjustment (WNA).
July 18, 2025
Gas Interim Rate Adjustment filing with the Railroad Commission of Texas, increasing the customer charge used to calculate monthly bills, citing capital investment and inflation since the July 2023 rate case.
n/aMay 1, 2026
May 2026 PGF rose to +$1.25/Ccf (from +$1.15 in April 2026), raising the all-in commercial gas rate to $1.3501/Ccf.
n/aOverall trend: Rising fixed/customer-charge component driven by capital investment and inflation; commodity (PGF) component fluctuates monthly with wholesale gas prices.
Next expected change: Ongoing monthly PGF/WNA adjustments; next base-rate action subject to future statement-of-intent filing with the RRC.
Cost Optimization Strategies
Because CoServ Gas C&I bills are dominated by the volumetric PGF pass-through, the highest-leverage strategies focus on reducing consumption and managing weather-driven usage rather than rate switching (gas has no competitive shopping and no demand charge).
Reduce gas consumption (efficiency)
For: All C&I gas accounts
Since the volumetric usage charge with PGF dominates the bill, efficiency upgrades to space heating, water heating, and process loads directly reduce spend.
Benchmark with interval/usage data
For: Multi-site and weather-sensitive loads
Export SmartHub usage via Green Button XML and benchmark against weather to find anomalies and load drift, especially in heating season when WNA applies.
Authorize a consultant via LOA
For: C&I customers with consultants/aggregators
Use the no-fee LOA process to let an energy manager monitor bills and usage and validate PGF/WNA charges across a portfolio.
To implement these strategies, you need your 15-minute interval data. Learn how to download CoServ Gas Ltd. interval data →
Frequently Asked Questions
How does my C&I business get gas usage data from CoServ Gas?▾
Register your account in SmartHub at coserv.smarthub.coop to view monthly bills and usage. CoServ Gas meters are read monthly, so gas usage is reported at monthly granularity rather than 15-minute intervals. You can download bill PDFs and export usage via Green Button XML for analysis.
Can an energy consultant or broker access our CoServ account on our behalf?▾
Yes. CoServ uses a Letter of Authorization (LOA) process. Complete the LOA on company letterhead with your FEIN and Secretary of State filing, have an officer sign it, and email it to CoServ. After approval (typically 5-10 business days) the authorized representative can register in SmartHub. There is no fee.
Does CoServ Gas support an API for automated data integration?▾
The underlying SmartHub platform exposes a REST API (JSON, API-key auth) documented at apidoc-en.smh.smarthing.com. Access requires customer authorization via LOA and API credentials issued by CoServ — there is no public self-service developer portal. Confirm gas data availability for your specific account.
Does CoServ Gas offer EDI for commercial billing?▾
CoServ Gas does not maintain a documented, publicly available EDI trading-partner program. ANSI X12 sets such as 810 (invoice) or 867 (usage) are not confirmed. Contact CoServ Customer Care (Commercial option) to inquire about any EDI capability.
How are CoServ Gas commercial rates structured?▾
Commercial and Public Authority gas service carries a fixed monthly customer charge plus a volumetric usage charge per Ccf, adjusted monthly by the Purchased Gas Factor (PGF) and Weather Normalization Adjustment (WNA), plus an interim rate adjustment rider. See the Tariff for Gas Service for the full schedule.
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