Note 3 - Related-party Transactions (Tables)

6 Months Ended

Jun. 30, 2026

Notes Tables

Schedule of Related Party Transactions [Table Text Block]

		Original			Monthly
		Principal			Payment
Loan Description	Parties	(in millions)	Maturity Date		(in millions)	Interest Rate	Loan Purpose
Second Amended and Restated Affiliate Revolving Credit Agreement	Blue Dolphin and Subsidiaries	$15 maximum	April 2027		Set-off against other obligations Borrower owes to Lender	WSJ Prime + 2.00%	Working capital
	LEH and Subsidiaries
Amended and Restated BDPL-LEH Loan Agreement	LEH	$4.0	April 2027		$0.25	12.00%	Working capital
	BDPL

Schedule of Related Party Transactions, Consolidated Balance Sheets [Table Text Block]

		June 30,				December 31,
		2026				2025
		(in thousands)

Current assets
Accounts receivable, related party		$	11,281			$	8,068
Current liabilities
Accounts payable, related party			-				-

Schedule of Outstanding Long-term Debt to Related Parties [Table Text Block]

		June 30,				December 31
		2026				2025
		(in thousands)
LEH
Amended and Restated BDPL-LEH Loan Agreement		$	2,138			$	3,463
Line of credit, related party			3,427				9,847
LEH Total			5,565				13,310

Less: Long-term debt, related party, current portion			(2,138	)			(2,731	)
Less: Line of credit, related party			(3,427	)			(9,847	)
Long-term debt, related party, net of current portion		$	-			$	732

		June 30,				December 31
		2026				2025
		(in thousands)
LEH
Amended and Restated BDPL-LEH Loan Agreement		$	-			$	17
Jonathan Carroll
Guaranty fee agreements			10				7
			10				24

Less: Interest payable, related party - current portion			(10	)			(24	)
Long-term interest payable, related party, net of current portion		$	-			$	-

Schedule of Related Party Transactions, Consolidated Statements of Operations [Table Text Block]

		Three Months Ended June 30,																Six Months Ended June 30,
		2026								2025								2026								2025
		(in thousands, except percent amounts)																(in thousands, except percent amounts)
Refinery operations
LEH		$	44,221				30.7	%		$	24,121				42.6	%		$	78,801				34.9	%		$	49,069				35.0	%
Third-Parties			99,269				68.8	%			31,674				56.0	%			145,414				64.4	%			89,594				63.8	%
Tolling and terminaling
LEH			585				0.4	%			540				1.0	%			1,170				0.5	%			1,080				0.8	%
Third-Parties			180				0.1	%			248				0.4	%			360				0.2	%			532				0.4	%
		$	144,255				100.0	%		$	56,583				100.0	%		$	225,745				100.0	%		$	140,275				100.0	%

		Three Months Ended June 30,								Six Months Ended June 30,
		2026				2025				2026				2025
		(in thousands)								(in thousands)
Jonathan Carroll
Guaranty Fee Agreements
Tied to First Term Loan Due 2034		$	86			$	92			$	173			$	185
Tied to NPS Term Loan Due 2031			40				47				82				93
Tied to Second Term Loan Due 2034			36				38				72				77
Tied to Blue Dolphin Term Loan Due 2051			10				10				20				20
LEH
Amended and Restated BDPL-LEH Loan Agreement			78				153				158				259
Second Amended and Restated Affiliate Revolving Credit Agreement			133				93				338				332
		$	383			$	433			$	843			$	966