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Note 5 - Other Investments (Tables)

12 Months Ended

Sep. 30, 2025

Notes Tables

Investment [Table Text Block]

		September 30
Balance Sheet location:		2025				2024
Other Assets:
MVP		$	20,538,437			$	20,948,347
Southgate			185,260				108,875
Investment in unconsolidated affiliates		$	20,723,697			$	21,057,222

		September 30
		2025				2024
Cash investment		$	76,385			$	18,258
Equity in earnings of unconsolidated affiliate			3,234,632				3,851,871
Distributions from unconsolidated affiliate			(3,644,542	)			—
Change in investment in unconsolidated affiliates		$	(333,525	)		$	3,870,129

Equity Method Investments [Table Text Block]

		Income Statements
		Years Ended September 30
		2025				2024
Revenue		$	563,535,710			$	143,052,597
Operating expenses			(290,825,244	)			(78,822,028	)
AFUDC			6,133,873				343,922,690
Other income, net			119,761				9,900,128
Net income		$	278,964,100			$	418,053,387

		Balance Sheets
		September 30
		2025				2024
Assets:
Current assets		$	173,283,635			$	263,966,727
Construction work in progress			—				1,568,267
Property, plant and equipment, net			9,418,928,665				9,522,815,742
Other assets			1,789,092				13,732,299
Total assets		$	9,594,001,392			$	9,802,083,035
Liabilities and Equity:
Current liabilities		$	40,148,017			$	168,645,751
Noncurrent liabilities			1,084,072				68,965
Capital			9,552,769,303				9,633,368,319
Total liabilities and equity		$	9,594,001,392			$	9,802,083,035

X

- Definition

Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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- Definition

Tabular disclosure of investment.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/320/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org/321/tableOfContent

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
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-Publisher FASB
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