Note 3 - Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2025

Schedule of Stock Options Roll Forward [Table Text Block]

				*Weighted*
				*Average*
	*Number of*			*exercise*
	*shares*			*price*
				*US$*
Outstanding, December 31, 2024		32,900,882			0.20

Changes during 2025 to:
Granted to employees, officers, directors and others		200,000			0.09
Expired/Cancelled/Forfeited		(96,557	)		1.38
Exercised		(18,000	)		0.07
Outstanding, March 31, 2025		32,986,325			0.19
Exercisable, March 31, 2025		32,986,325			0.19

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Shares underlying outstanding options (non-vested)							Shares underlying outstanding options (fully vested)
			Weighted								Weighted
			average		Weighted						average		Weighted
Range of			remaining		Average		Range of				remaining		Average
exercise	Number		contractual		Exercise		exercise		Number		contractual		Exercise
price	outstanding		life (years)		price		price		Outstanding		life (years)		price
US$					US$		US$						US$
—		—		—		—		0.01		107,500		1.75		0.01
—		—		—		—		0.01		50,000		1.76		0.01
—		—		—		—		0.01		40,000		2.05		0.01
—		—		—		—		0.01		200,000		2.14		0.01
—		—		—		—		0.01		40,000		2.50		0.01
—		—		—		—		0.01		62,500		2.75		0.01
—		—		—		—		0.01		25,000		2.76		0.01
—		—		—		—		0.01		30,000		2.91		0.01
—		—		—		—		0.01		4,000		3.02		0.01
—		—		—		—		0.01		25,000		3.77		0.01
—		—		—		—		0.01		35,000		4.47		0.01
—		—		—		—		0.01		150,000		4.64		0.01
—		—		—		—		0.01		35,000		4.77		0.01
—		—		—		—		0.01		75,000		5.77		0.01
—		—		—		—		0.01		200,000		6.14		0.01
—		—		—		—		0.01		300,000		6.30		0.01
—		—		—		—		0.01		10,000		6.42		0.01
—		—		—		—		0.01		500,000		6.77		0.01
—		—		—		—		0.01		55,000		6.80		0.01
—		—		—		—		0.01		960,000		7.05		0.01
—		—		—		—		0.01		75,000		7.37		0.01
—		—		—		—		0.01		10,000		7.43		0.01
—		—		—		—		0.01		795,000		7.49		0.01
—		—		—		—		0.01		25,000		7.77		0.01
—		—		—		—		0.01		10,000		8.43		0.01
—		—		—		—		0.01		895,000		8.48		0.01
—		—		—		—		0.01		25,000		8.77		0.01
—		—		—		—		0.01		10,000		9.43		0.01
—		—		—		—		0.01		25,000		9.77		0.01
—		—		—		—		0.06		50,000		7.77		0.06
—		—		—		—		0.07		125,000		8.77		0.07
—		—		—		—		0.07		6,562,000		8.49		0.07
—		—		—		—		0.09		175,000		9.77		0.09
—		—		—		—		0.14		210,000		6.80		0.14
—		—		—		—		0.15		3,200,000		6.77		0.15
—		—		—		—		0.15		6,354,325		7.05		0.15
—		—		—		—		0.16		340,000		0.69		0.16
—		—		—		—		0.16		75,000		4.70		0.16
—		—		—		—		0.18		25,000		0.67		0.18
—		—		—		—		0.18		5,130,000		7.49		0.18
—		—		—		—		0.24		25,000		7.34		0.24
—		—		—		—		0.24		118,000		7.37		0.24
—		—		—		—		0.25		50,000		6.42		0.25
—		—		—		—		0.25		363,000		6.42		0.25
—		—		—		—		0.28		25,000		0.43		0.28
—		—		—		—		0.28		25,000		4.43		0.28
—		—		—		—		0.29		25,000		2.21		0.29
—		—		—		—		0.39		1,435,000		6.28		0.39
—		—		—		—		0.59		1,400,000		2.14		0.59
—		—		—		—		0.59		1,600,000		6.14		0.59
—		—		—		—		0.92		350,000		1.76		0.92
—		—		—		—		0.92		550,000		5.77		0.92
		—				—		0.01-0.92		32,986,325				0.19

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

	*For the three months ended*
	*March 31,*
	*2025*			*2024*
Weighted-average fair value of underlying stock at grant date	$	0.10		$	0.07
Dividend yields		—			—
Expected volatility		135	%		133	%
Risk-free interest rates		4.41	%		3.97	%
Expected lives (in years)		5.00			5.00
Weighted-average grant date fair value	$	0.09		$	0.07

Share-Based Payment Arrangement, Cost by Plan [Table Text Block]

For the Three Months Ended March 31,
2025	2024
US$ thousands	US$ thousands
18		122

For the Three Months Ended March 31,
2025	2024
US$ thousands	US$ thousands
—		1

Share-Based Payment Arrangement, Activity [Table Text Block]

			*Warrant*	*Outstanding*									*Outstanding*
	*Exercise*		*Termination*	*Balance,*		*Warrants*		*Warrants*			*Warrants*		*Balance,*
Warrants	*Price*		*Date*	*12/31/2024*		*Issued*		*Exercised*			*Expired*		*03/31/2025*
ZNWAA	$	2.00	01/31/2026		1,498,804		-		-			-		1,498,804
ZNWAM	$	0.05	03/31/2025		4,376,000		-		(4,376,000	)		-		-
ZNWAQ	$	0.05	03/31/2025		23,428,348		-		(23,428,348	)		-		-
ZNWBA	$	0.25	03/31/2026		-		1,178,100		-			-		1,178,100
Outstanding warrants					29,303,152		1,178,100		(27,804,348	)		-		2,676,904

		*Period of Grant*	*US$*		*Expiration Date*
ZNWAA Warrants	A,B,C,D,H	March 2013 – December 2014		2.00	January 31, 2026
ZNWAS Warrants	E	August 2021 – March 2022		0.25	December 31, 2025
ZNWAT Warrants	E	August – September 2022		0.25	December 31, 2025
ZNWAU Warrants	E	October – November 2022		0.25	December 31, 2025
ZNWBA Warrants	F,G	November – December 2024		0.25	March 31, 2026

ZION OIL & GAS INC 10-Q