AltaGas (TSX:ALA) Long-Term Debt: C$9,512 Mil (As of Mar. 2026)

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TSX:ALA AltaGas Ltd TSX:ALA
77 GF Score
Price C$54.86
GF Value C$33.13
Valuation Significantly Overvalued
! 15 Warning Signs
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What is AltaGas Long-Term Debt?

AltaGas TSX:ALA +0.53% 77 Long-Term Debt is C$9,512 Mil as of Mar. 2026. GuruFocus rates TSX:ALA with a GF Score™ of 77/100 and a GF Value™ of C$33.13 (Significantly Overvalued). The stock has 15 warning signs investors should review.

AltaGas's Long-Term Debt for the quarter that ended in Mar. 2026 was C$9,512 Mil.

AltaGas's quarterly Long-Term Debt declined from Sep. 2025 (C$9,688 Mil) to Dec. 2025 (C$9,169 Mil) but then increased from Dec. 2025 (C$9,169 Mil) to Mar. 2026 (C$9,512 Mil).

AltaGas's annual Long-Term Debt increased from Dec. 2023 (C$8,270 Mil) to Dec. 2024 (C$9,014 Mil) and increased from Dec. 2024 (C$9,014 Mil) to Dec. 2025 (C$9,169 Mil).

AltaGas  (TSX:ALA) 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.

AltaGas Long-Term Debt Related Terms

AltaGas Long-Term Debt Historical Data

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The historical data trend for AltaGas'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.

AltaGas Long-Term Debt Chart

AltaGas Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Long-Term Debt
Get a 7-Day Free Trial Premium Member Only Premium Member Only 7,684.00 9,223.00 8,270.00 9,014.00 9,169.00

AltaGas 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 9,162.00 9,144.00 9,688.00 9,169.00 9,512.00
TSX:ALA
77GF Score
AltaGas Ltd TSX:ALA
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 C$9,512 Mil mean?
AltaGas (TSX:ALA) has a Long-Term Debt of C$9,512 Mil as of Mar. 2026.
Is AltaGas' Long-Term Debt too high?
AltaGas' current Long-Term Debt is C$9,512 Mil. Overall, AltaGas has a GF Score™ of 77/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does AltaGas' Long-Term Debt compare to WMB and EPD?
AltaGas' Long-Term Debt of C$9,512 Mil can be compared against companies in the Oil & Gas 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 Oil & Gas company?
A good Long-Term Debt depends on the Oil & Gas 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. AltaGas's current Long-Term Debt is C$9,512 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is AltaGas stock overvalued right now?
Based on GuruFocus' analysis, AltaGas (TSX:ALA) is currently considered Significantly Overvalued. The stock's GF Value™ is C$33.13, compared to a current price of C$54.86 — trading 65.6% above its estimated fair value. The current Long-Term Debt is C$9,512 Mil. AltaGas' overall GF Score™ is 77/100 with 15 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 AltaGas (TSX:ALA), the current Long-Term Debt is C$9,512 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 AltaGas (TSX:ALA) Overvalued in 2026?

Based on GuruFocus' analysis, AltaGas stock appears to be overvalued. The current stock price of C$54.86 is trading 65.6% above its estimated GF Value™ of C$33.13. GuruFocus considers AltaGas to be Significantly Overvalued.

Key valuation signals for TSX:ALA:

  • Long-Term Debt: C$9,512 Mil
  • GF Value™: C$33.13 vs. price of C$54.86 (65.6% above fair value)
  • GF Score™: 77/100 with 15 warning signs

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

AltaGas Business Description

Industry EnergyOil & Gas
Address 707 - 5th Street SW, Suite 1300, Calgary, AB, CAN, T2P 1V8
AltaGas Ltd is a North American energy infrastructure company that connects customers and markets to energy sources. AltaGas has three reporting segments: Utilities, Midstream, and Corporate/Other. The majority of its revenue is generated from the Midstream segment, which operates a North American energy platform that moves natural gas and LPGs from the wellhead to markets. It exports propane and butane to Asia through its LPG terminals, and runs natural gas gathering, processing, fractionation, liquids handling, and storage infrastructure. The segment also includes its natural gas and natural gas liquids (NGLs) marketing business, domestic logistics, trucking and rail terminals, and liquid and natural gas storage capability. Geographically, the firm derives its key revenue from the U.S.
77GF Score

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

C$54.86
Price
C$33.13
GF Value