3TEC Energy Corporation		Summary Page List of Leases

Year	Oil			Gas
	Production (bbls)	Wells	Cumulative (bbls)	Production (mcf)	Wells	Cumulative (mcf)
1999	-	7	816	-	4	3,110
2000	36,293	63	37,109	334,611	42	337,721
2001	37,933	60	75,042	361,112	41	698,833
2002	13,297	40	88,339	307,487	30	1,006,320
2003	2,769	4	91,108	326,133	27	1,332,453
2004	2,954	3	94,062	292,100	26	1,624,553
2005	2,546	3	96,608	281,898	26	1,906,451
2006	2,006	4	98,614	280,845	26	2,187,296
2007	356	2	98,970	223,993	26	2,411,289
2008	577	3	99,547	174,589	25	2,585,878
2009	118	1	99,665	131,547	23	2,717,425
2010	-	-	99,665	87,531	14	2,804,956
2011	-	-	99,665	59,302	9	2,864,258
2012	156	1	99,821	48,670	9	2,912,928
2013	110	1	99,931	40,554	9	2,953,482
2014	306	1	100,237	34,452	9	2,987,934
2015	-	-	100,237	24,949	9	3,012,883
2016	-	-	100,237	20,111	7	3,032,994
2017	-	-	100,237	10,825	7	3,043,819
2018	-	-	100,237	3,971	1	3,047,790
2019	-	-	100,237	3,798	1	3,051,588
2020	-	-	100,237	1,248	0	3,052,836
2021	-	-	100,237	191	0	3,053,027

Updated through 2-2021.