Mark Oil, Inc.		Summary Page List of Leases

Year	Oil			Gas
	Production (bbls)	Wells	Cumulative (bbls)	Production (mcf)	Wells	Cumulative (mcf)
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1980	-	1	423	-	-	0
1981	2,745	1	3,168	-	-	0
1982	1,749	1	4,917	-	-	0
1983	1,161	1	6,078	-	-	0
1984	1,181	1	7,259	-	-	0
1985	1,227	1	8,486	-	-	0
1986	1,128	1	9,614	-	-	0
1987	1,233	1	10,847	-	-	0
1988	1,079	1	11,926	-	-	0
1989	1,018	1	12,944	-	-	0
1990	957	1	13,901	-	-	0
1991	866	1	14,767	-	-	0
1992	832	1	15,599	-	-	0
1993	659	1	16,258	-	-	0
1994	563	1	16,821	-	-	0
1995	491	1	17,312	-	-	0
1996	250	5	17,562	-	-	0
1997	446	4	18,008	-	-	0
1998	361	3	18,369	-	-	0
1999	483	3	18,852	-	-	0
2000	232	3	19,084	-	-	0
2001	436	3	19,520	-	-	0
2002	680	4	20,200	-	-	0
2003	626	4	20,826	-	-	0
2004	539	4	21,365	-	-	0
2005	465	4	21,830	-	-	0
2006	500	4	22,330	-	-	0
2007	442	4	22,772	-	-	0
2008	427	4	23,199	-	-	0
2009	399	4	23,598	-	-	0
2010	374	4	23,972	-	-	0
2011	709	4	24,681	-	-	0
2012	422	4	25,103	-	-	0
2013	589	4	25,692	-	-	0
2014	402	4	26,094	-	-	0
2015	436	4	26,530	-	-	0
2016	326	4	26,856	-	-	0
2017	308	4	27,164	-	-	0
2018	172	4	27,336	-	-	0
2019	172	4	27,508	-	-	0
2020	118	4	27,626	-	-	0
2021	108	4	27,734	-	-	0
2022	35	4	27,769	-	-	0
2023	98	4	27,867	-	-	0

Updated through 5-2023.