NFG (National Fuel Gas Co) Days Inventory: 15.13 (As of Mar. 2026) — 49% Below Median


NFG National Fuel Gas Co NFG
86 GF Score
Price $78.45
GF Value $78.57
Valuation Fairly Valued
! 1 Warning Sign
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What is National Fuel Gas Co Days Inventory?

National Fuel Gas Co NFG +2.54% 86 Days Inventory is 15.13 as of Mar. 2026, which is 49% below its 10-year median of 29.39. GuruFocus rates NFG with a GF Score™ of 86/100 and a GF Value™ of $78.57 (Fairly Valued). The stock has 1 warning sign investors should review. Among 688 Oil & Gas companies, National Fuel Gas Co ranks better than 63.08% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). National Fuel Gas Co's Average Total Inventories for the three months ended in Mar. 2026 was $81 Mil. National Fuel Gas Co's Cost of Goods Sold for the three months ended in Mar. 2026 was $486 Mil. Hence, National Fuel Gas Co's Days Inventory for the three months ended in Mar. 2026 was 15.13.

The historical rank and industry rank for National Fuel Gas Co's Days Inventory or its related term are showing as below:

NFG' s Days Inventory Range Over the Past 10 Years
Min: 19.93   Med: 29.39   Max: 41.63
Current: 19.93

During the past 13 years, National Fuel Gas Co's highest Days Inventory was 41.63. The lowest was 19.93. And the median was 29.39.

NFG's Days Inventory is ranked better than
63.08% of 688 companies
in the Oil & Gas industry
Industry Median: 31 vs NFG: 19.93

National Fuel Gas Co's Days Inventory declined from Mar. 2025 (15.42) to Mar. 2026 (15.13).

Inventory Turnover measures how fast the company turns over its inventory within a year. National Fuel Gas Co's Inventory Turnover for the three months ended in Mar. 2026 was 6.03.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. National Fuel Gas Co's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.09.


National Fuel Gas Co  (NYSE:NFG) Days Inventory Explanation

Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:

1. Inventory Turnover measures how fast the company turns over its inventory within a year.

National Fuel Gas Co's Inventory Turnover for the three months ended in Mar. 2026 is calculated as

2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

National Fuel Gas Co's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

* 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.


Be Aware

A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.


National Fuel Gas Co Days Inventory Related Terms


National Fuel Gas Co Days Inventory Historical Data

* Premium members only.

The historical data trend for National Fuel Gas Co's Days Inventory 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.

National Fuel Gas Co Days Inventory Chart

National Fuel Gas Co Annual Data
Trend Sep16 Sep17 Sep18 Sep19 Sep20 Sep21 Sep22 Sep23 Sep24 Sep25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 38.17 41.63 34.94 26.59 25.64

National Fuel Gas Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Days Inventory 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 15.42 20.59 27.09 23.34 15.13

NFG vs DEC, UNTC, SLNG: Days Inventory Comparison

For the Oil & Gas Integrated subindustry, National Fuel Gas Co's Days Inventory, along with its competitors' market caps and Days Inventory data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


National Fuel Gas Co Days Inventory vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, National Fuel Gas Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where National Fuel Gas Co's Days Inventory falls into.


NFG
86GF Score
National Fuel Gas Co NFG
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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National Fuel Gas Co Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

National Fuel Gas Co's Days Inventory for the fiscal year that ended in Sep. 2025 is calculated as

Days Inventory (A: Sep. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Sep. 2024 ) + Total Inventories (A: Sep. 2025 )) / count ) / Cost of Goods Sold (A: Sep. 2025 )*Days in Period
=( (82.725 + 89.782) / 2 ) / 1227.9*365
=86.2535 / 1227.9*365
=25.64

National Fuel Gas Co's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (89.563 + 71.546) / 2 ) / 485.964*365 / 4
=80.5545 / 485.964*365 / 4
=15.13

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 15.13 mean?
National Fuel Gas Co (NFG) has a Days Inventory of 15.13 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on National Fuel Gas Co and its competitors. This is 49% below median its historical median of 29.39. Over the past decade, National Fuel Gas Co's Days Inventory has ranged from 19.93 to 41.63. According to the industry distribution chart, National Fuel Gas Co ranks #254 out of 688 companies in the Oil & Gas industry, placing it in the top 36.9%.
Is National Fuel Gas Co's Days Inventory too high?
National Fuel Gas Co's current Days Inventory of 15.13 is 49% below median its 10-year median of 29.39. Over the past 10 years, this metric has ranged from a low of 19.93 to a high of 41.63. The Oil & Gas industry median Days Inventory is 31.00. National Fuel Gas Co's value of 15.13 is 51.2% below this industry median. Based on the distribution chart, National Fuel Gas Co ranks #254 out of 688 companies in the Oil & Gas industry, which is above the industry midpoint. Overall, National Fuel Gas Co has a GF Score™ of 86/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does National Fuel Gas Co's Days Inventory compare to DEC and UNTC?
According to the Oil & Gas industry distribution chart, National Fuel Gas Co ranks #254 out of 688 companies for Days Inventory. This puts National Fuel Gas Co in the upper half of its industry. The industry median Days Inventory is 31.00. National Fuel Gas Co's value of 15.13 is 51.2% below this benchmark. Historically, National Fuel Gas Co's own Days Inventory has ranged from 19.93 to 41.63 over the past decade. While the company's 10-year median is 29.39 vs. the industry median of 31.00, National Fuel Gas Co has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for an Oil & Gas company?
The median Days Inventory among Oil & Gas companies is 31.00, based on 688 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. National Fuel Gas Co's current Days Inventory of 15.13 is 51.2% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on National Fuel Gas Co and its competitors. For the Oil & Gas industry, the median Days Inventory is 31.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. National Fuel Gas Co's current Days Inventory is 15.13, which is 49% below median its own 10-year median of 29.39. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is National Fuel Gas Co stock overvalued right now?
Based on GuruFocus' analysis, National Fuel Gas Co (NFG) is currently considered Fairly Valued. The stock's GF Value™ is $78.57, compared to a current price of $78.45 — trading 0.2% below its estimated fair value. The current Days Inventory is 15.13, which is 49% below median its 10-year median of 29.39 and 51.2% below the Oil & Gas industry median of 31.00. National Fuel Gas Co's overall GF Score™ is 86/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For National Fuel Gas Co (NFG), the current Days Inventory is 15.13 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 National Fuel Gas Co (NFG) Overvalued in 2026?

Based on GuruFocus' analysis, National Fuel Gas Co stock appears to be undervalued. The current stock price of $78.45 is trading 0.2% below its estimated GF Value™ of $78.57. GuruFocus considers National Fuel Gas Co to be Fairly Valued.

Key valuation signals for NFG:

  • Days Inventory: 15.13 (49% below median its 10-year median of 29.39)
  • GF Value™: $78.57 vs. price of $78.45 (0.2% below fair value)
  • GF Score™: 86/100 with 1 warning sign
  • Industry Position: 51.2% below the Oil & Gas median (#254 of 688)

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


National Fuel Gas Co Business Description

Industry EnergyOil & Gas
Other Exchanges NFG:MexicoNFG:Germany
Address 6363 Main Street, Williamsville, NY, USA, 14221
National Fuel Gas Co is a diversified energy company involved in natural gas production, gathering, transportation, distribution, and marketing. It operates through three segments: Integrated Upstream and Gathering, Pipeline and Storage, and Utility. The majority of revenue comes from the Integrated Upstream and Gathering segment, which focuses on Seneca's natural gas exploration and development in the Appalachian region and Midstream operations supporting gas processing and gathering. The Pipeline and Storage segment transports and stores natural gas for customers in the northeastern United States and Canada, while the Utility segment supplies natural gas to retail customers in western New York and northwestern Pennsylvania. the company opeartes in United States.
86GF Score

Get the complete analysis for NFG

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

$78.45
Price
$78.57
GF Value