ATO (Atmos Energy) Long-Term Debt: $9,618 Mil (As of Mar. 2026)


ATO Atmos Energy Corp ATO
85 GF Score
Price $173.83
GF Value $155.69
Valuation Modestly Overvalued
! 6 Warning Signs
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What is Atmos Energy Long-Term Debt?

Atmos Energy ATO -1.72% 85 Long-Term Debt is $9,618 Mil as of Mar. 2026. GuruFocus rates ATO with a GF Score™ of 85/100 and a GF Value™ of $155.69 (Modestly Overvalued). The stock has 6 warning signs investors should review.

Atmos Energy's Long-Term Debt for the quarter that ended in Mar. 2026 was $9,618 Mil.

Atmos Energy's quarterly Long-Term Debt increased from Sep. 2025 ($8,975 Mil) to Dec. 2025 ($9,622 Mil) but then declined from Dec. 2025 ($9,622 Mil) to Mar. 2026 ($9,618 Mil).

Atmos Energy's annual Long-Term Debt increased from Sep. 2023 ($6,639 Mil) to Sep. 2024 ($7,861 Mil) and increased from Sep. 2024 ($7,861 Mil) to Sep. 2025 ($8,975 Mil).

Atmos Energy  (NYSE:ATO) Long-Term Debt Explanation

Long-Term Debt is the sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year or the normal operating cycle, if longer. Long-Term Debt includes notes payable, bonds payable, mortgage loans, convertible debt, subordinated debt and other types of long term debt.

Atmos Energy Long-Term Debt Related Terms

Atmos Energy Long-Term Debt Historical Data

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The historical data trend for Atmos Energy's Long-Term Debt can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Atmos Energy Long-Term Debt Chart

Atmos Energy Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Long-Term Debt
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4,930.21 5,760.65 6,639.21 7,860.52 8,975.41

Atmos Energy Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Long-Term Debt Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 8,486.33 8,980.59 8,975.41 9,621.86 9,617.98
ATO
85GF Score
Atmos Energy Corp ATO
Long-Term Debt is just one metric. See GF Score™, valuation, warning signs, and more.
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Frequently Asked Questions Learn more about Long-Term Debt →
What does a Long-Term Debt of $9,618 Mil mean?
Atmos Energy (ATO) has a Long-Term Debt of $9,618 Mil as of Mar. 2026.
Is Atmos Energy's Long-Term Debt too high?
Atmos Energy's current Long-Term Debt is $9,618 Mil. Overall, Atmos Energy has a GF Score™ of 85/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Atmos Energy's Long-Term Debt compare to NI and UGI?
Atmos Energy's Long-Term Debt of $9,618 Mil can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Long-Term Debt for an Utilities - Regulated company?
A good Long-Term Debt depends on the Utilities - Regulated industry context. However, Long-Term Debt should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Long-Term Debt mean?
A high Long-Term Debt can signal that a stock is expensive relative to its fundamentals. Atmos Energy's current Long-Term Debt is $9,618 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Atmos Energy stock overvalued right now?
Based on GuruFocus' analysis, Atmos Energy (ATO) is currently considered Modestly Overvalued. The stock's GF Value™ is $155.69, compared to a current price of $173.83 — trading 11.7% above its estimated fair value. The current Long-Term Debt is $9,618 Mil. Atmos Energy's overall GF Score™ is 85/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Long-Term Debt calculated?
Long-Term Debt is calculated from a company's financial statements. For Atmos Energy (ATO), the current Long-Term Debt is $9,618 Mil as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Atmos Energy (ATO) Overvalued in 2026?

Based on GuruFocus' analysis, Atmos Energy stock appears to be overvalued. The current stock price of $173.83 is trading 11.7% above its estimated GF Value™ of $155.69. GuruFocus considers Atmos Energy to be Modestly Overvalued.

Key valuation signals for ATO:

  • Long-Term Debt: $9,618 Mil
  • GF Value™: $155.69 vs. price of $173.83 (11.7% above fair value)
  • GF Score™: 85/100 with 6 warning signs

No single metric tells the full story. See the ATO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Atmos Energy Business Description

Address 5430 LBJ Freeway, Suite 1800, Three Lincoln Centre, Dallas, TX, USA, 75240
Atmos Energy is the largest publicly traded, fully regulated, pure-play natural gas utility in the United States, serving more than 3.3 million customers in Texas, Colorado, Kansas, Kentucky, Louisiana, Mississippi, Tennessee, and Virginia. About two thirds of its earnings come from Texas, where it distributes natural gas in northern Texas and owns an intrastate gas pipeline spanning several key shale gas formations and interconnected with five storage facilities.
85GF Score

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Long-Term Debt is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$173.83
Price
$155.69
GF Value