Atmos Energy Corporation Rate Selection Guide
Atmos Energy is the largest natural-gas-only distributor in the United States, serving over 3.3 million customers across eight states, with Texas as its largest market. Commercial and industrial customers access billing and usage data through the Account Center portal and the Customer Activity Website (CAW), with daily wireless meter data in select areas; standardized Green Button and public APIs are not offered.
Atmos Energy Corporation Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Rate C – Commercial | Commercial | $94.01/mo + $0.22261/Ccf (+ riders) | Offices, retail, restaurants, small industrial (<30,000 Ccf/yr) |
| Rate I – Industrial | Industrial | $1,848.75/mo + declining-block MMBtu | Industrial sites under 200 MMBtu/day |
| Rate T – Transportation | Industrial | $1,848.75/mo + declining-block MMBtu (gas self-supplied) | Large users wanting to buy their own gas |
Market Overview
Regulated gas LDC. Mid-Tex (Texas) rates are governed by the annual Rate Review Mechanism (RRM) settlement process between Atmos and the Atmos Cities Steering Committee, filed with the Railroad Commission of Texas. No retail supplier choice for distribution service; Transportation (Rate T) lets eligible large customers supply their own gas through Atmos's system.
Need to pull your actual usage data to compare rates? See the Atmos Energy Corporation Data Access Guide →
Current Rate Schedules
Mid-Tex Division C&I rates below are from the official Mid-Tex tariff book (March 1, 2026 edition), reflecting charges effective for bills rendered on or after 10/01/2025 following the 2025 Rate Review Mechanism settlement. Rates exclude pass-through riders (Gas Cost Recovery, WNA, Franchise Fee, Tax). All consumption is billed in Ccf (commercial) or MMBtu (industrial/transportation).
Effective: October 1, 2025 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Rate C – Commercial Sales | commercial | Commercial customers for all gas at one point of delivery through one meter, and industrial customers with average annual usage under 30,000 Ccf. | Flat customer charge plus a single commodity charge per Ccf, plus pass-through riders. | Customer charge $94.01/month (incl. $0.01 Rider CEE); Commodity charge $0.22261 per Ccf, plus Rider GCR, WNA, FF, TAX+ None |
| Rate I – Industrial Sales | industrial | Industrial customers with maximum daily usage (MDU) under 200 MMBtu/day at one metered point of delivery. MDU >= 200 MMBtu/day requires a special contract. | Flat customer charge per meter plus a three-block declining commodity charge per MMBtu, plus pass-through riders. | Customer charge $1,848.75/month; First 1,500 MMBtu $0.7678/MMBtu, next 3,500 MMBtu $0.5623/MMBtu, over 5,000 MMBtu $0.1206/MMBtu, plus Rider GCR+ None (curtailment overpull fee = 200% of Katy Platts midpoint price) |
| Rate T – Transportation | industrial | Customers directly connected to the Mid-Tex distribution system who supply their own gas under a Transportation Agreement. Not available to customers with maximum daily demand >= 1,000 MMBtu and load factor <= 10%. | Flat customer charge per meter plus a three-block declining charge per MMBtu (same blocks as Rate I), plus upstream transportation cost recovery and Rider RA retention. | Customer charge $1,848.75/month; First 1,500 MMBtu $0.7678/MMBtu, next 3,500 MMBtu $0.5623/MMBtu, over 5,000 MMBtu $0.1206/MMBtu+ None |
| Large Industrial / Contract (MDU >= 200 MMBtu/day) | industrial | Industrial customers whose maximum daily usage equals or exceeds 200 MMBtu/day. | Served at Company's sole option under special contract arrangements; rates are negotiated rather than tariffed. | Contract / negotiated (see tariff book and Atmos representative)+ Per contract |
Rate Recommendations by Use Case
Multi-site commercial portfolio (offices/retail)
Aggregate billing and usage across all Atmos accounts for benchmarking and budgeting.
Most commercial sites fall under Rate C with a flat $94.01 customer charge and a single per-Ccf commodity rate; the variable cost is dominated by pass-through GCR.
- Register each account in Account Center, or use CAW for consolidated reporting
- Authorize Nectar for automated multi-utility data pulls
- Track WNA-adjusted winter bills separately
Manufacturing / industrial facility
Optimize rate class and monitor block pricing for a single high-volume gas load.
Under 200 MMBtu/day, Rate I applies with steep declining-block pricing; above that, special contracts apply. Eligible large users can self-supply gas under Rate T.
- Verify MDU to confirm Rate I eligibility vs special contract
- Model declining-block savings above 1,500 and 5,000 MMBtu
- Evaluate Rate T to capture commodity margin
Large user evaluating gas procurement
Decide between bundled (Rate I) supply and self-supplied transportation (Rate T).
Rate T charges the same delivery blocks as Rate I but lets the customer buy gas at market, potentially below the bundled GCR cost, subject to load-factor eligibility.
- Confirm load factor > 10% at >=1,000 MMBtu/day demand for eligibility
- Secure a gas supply agreement and Transportation Agreement
- Account for Rider RA retention quantities
Energy consultant / aggregator serving Atmos customers
Automate data access across Atmos's eight-state footprint.
Atmos has no Green Button or public API, so Nectar integration or CAW authorization is the practical path to programmatic data.
- Use Nectar for automated billing/usage retrieval — see docs.nectarclimate.com
- Use CAW for large-volume customers needing detailed reports
- Collect signed customer authorizations up front
Historical Rate Trends
Atmos Mid-Tex rates rise through the annual Rate Review Mechanism (RRM), a streamlined process that lets the utility file for interim increases reviewed by the Atmos Cities Steering Committee and approved by the Railroad Commission of Texas, plus periodic GRIP/pipeline-replacement surcharges.
October 1, 2025
2025 Rate Review Mechanism (RRM) settlement: system-wide revenue increase of $205.6 million, raising the average residential bill by about $7.83/month. C&I customer and commodity charges were reset to the levels reflected in the current tariff book.
+$205.6M system-wideJuly 1, 2025
Rider CEE (Conservation and Energy Efficiency) surcharge billing took effect (approved in GUD 10170), adding a small per-bill surcharge across rate classes.
+$0.01/bill (CEE)Overall trend: Mid-Tex rates have risen steadily, driven by annual RRM filings recovering capital investment in pipeline replacement and system safety. Increases have been in the $130M-$210M/year range recently.
Next expected change: Next annual RRM filing expected in 2026, with new rates typically effective around October 1.
Cost Optimization Strategies
Because gas commodity cost (Rider GCR) is a pass-through, C&I cost optimization for Atmos focuses on reducing consumption, qualifying for the most favorable rate class, and—for the largest users—self-supplying gas under Rate T.
Confirm correct rate classification
For: Commercial and small industrial
Commercial customers near 30,000 Ccf/year or industrial customers near the 200 MMBtu/day MDU threshold should verify they are on the lowest-cost applicable schedule (Rate C vs Rate I vs contract).
Evaluate Rate T transportation
For: Large industrial (sufficient load factor)
Large industrial users can procure their own gas supply and pay Atmos only for delivery under Rate T, capturing market spreads versus the bundled GCR commodity cost.
Use daily wireless meter data
For: Any customer with a wireless meter
Where wireless meters exist, monitor daily usage in Account Center to detect leaks, off-hours waste, and seasonal spikes.
Capture declining-block savings
For: Industrial and transportation
Industrial/transportation usage above 1,500 and 5,000 MMBtu is priced at sharply lower per-MMBtu rates; consolidating eligible load behind a single qualifying meter improves the average rate.
To implement these strategies, you need your 15-minute interval data. Learn how to download Atmos Energy Corporation interval data →
Frequently Asked Questions
Does Atmos Energy support Green Button or a public API for my commercial accounts?▾
No. Atmos does not offer Green Button Download My Data, Connect My Data, ESPI, or a public developer API. C&I customers access data through Account Center and the Customer Activity Website (CAW); programmatic access is achieved through Nectar, which provides API access to this utility's billing and usage data — see docs.nectarclimate.com.
How does a large commercial or industrial customer get detailed usage reports?▾
Large-volume customers register for the Customer Activity Website (CAW) by submitting the request form to onlinUAR@atmosenergy.com. After approval (2-5 business days), CAW provides monthly usage and billing reports back to July 2019, with older data available on request.
What rate schedule will my business be on in Texas (Mid-Tex)?▾
Most commercial sites and small industrial users (under 30,000 Ccf/year) take Rate C: $94.01/month customer charge plus $0.22261/Ccf (effective 10/01/2025), plus pass-through riders. Industrial customers under 200 MMBtu/day take Rate I with a $1,848.75/month charge and declining-block MMBtu pricing; larger loads require a special contract.
Can my industrial facility buy its own natural gas?▾
Yes. Eligible large customers directly connected to the Mid-Tex system can take Rate T (Transportation), paying Atmos the same delivery blocks as Rate I while supplying their own gas under a Transportation Agreement. Customers with maximum daily demand of 1,000 MMBtu or more and a load factor of 10% or less are not eligible.
How often do Atmos Mid-Tex rates change?▾
Annually. Mid-Tex files under the Rate Review Mechanism (RRM); the 2025 settlement raised system-wide revenue by $205.6 million effective 10/01/2025 (about $7.83/month for the average residential customer). The next RRM filing is expected in 2026 with new rates around October 1.
Can I get interval (sub-daily) gas data from Atmos?▾
No. Where wireless meters are deployed, Atmos provides daily usage graphs in Account Center, but it does not offer 15- or 30-minute interval data.
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