Mack Energy Co.		Summary Page List of Leases

Year	Oil			Gas
	Production (bbls)	Wells	Cumulative (bbls)	Production (mcf)	Wells	Cumulative (mcf)
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1990	-	1	71	-	-	0
1991	75	1	146	-	-	0
1992	92	1	238	-	-	0
1993	64	1	302	-	-	0
1994	53	1	355	-	-	0
1995	44	1	399	-	-	0
1996	30,984	26	31,383	264,875	21	264,875
1997	27,786	26	59,169	230,436	20	495,311
1998	23,553	22	82,722	219,957	20	715,268
1999	19,938	19	102,660	201,428	21	916,696
2000	15,510	19	118,170	189,929	21	1,106,625
2001	13,641	19	131,811	178,850	21	1,285,475
2002	11,637	18	143,448	172,259	23	1,457,734
2003	16,478	19	159,926	164,701	23	1,622,435
2004	16,129	19	176,055	151,303	23	1,773,738
2005	13,554	19	189,609	140,272	23	1,914,010
2006	13,271	21	202,880	135,567	23	2,049,577
2007	10,703	22	213,583	120,999	21	2,170,576
2008	10,045	21	223,628	101,007	21	2,271,583
2009	9,444	19	233,072	21,114	20	2,292,697
2010	7,979	19	241,051	7,572	15	2,300,269
2011	4,786	6	245,837	15,578	20	2,315,847
2012	3,937	2	249,774	1,902	1	2,317,749
2013	3,003	3	252,777	1,442	1	2,319,191
2014	2,842	3	255,619	1,178	1	2,320,369
2015	2,797	3	258,416	483	1	2,320,852
2016	466	3	258,882	-	-	2,320,852
2017	1,877	3	260,759	-	-	2,320,852

Updated through 12-2017.