Groff--Oil and Gas Production

	Operator: Jones-Shelburne and Farmer Lease: Groff, Well 1 Location: 14S-21W: SW SW SW 26 Discovery Date: 11/11/1952 Producing zone: Penn Basal Congl. Oil	Operator: Amerada Lease: Wanamaker, Well 1 Location: 14S-21W: SE SE SE 27 Discovery Date: 07/13/1954 Producing zone: Lansing-Kansas City Oil
	Operator: Wickizer Lease: Moore, Well 2 Location: 14S-21W: SW SE NE 35 Discovery Date: 02/03/1959 Producing zone: Marmaton Oil	Operator: Kimbark Oil and Gas Lease: Milberger, Well 3 Location: 15S-21W: NE 1 Discovery Date: 07/01/1982 Producing zone: Cherokee Oil
	Operator: Downing-Nelson Oil Co. Lease: Littlechild, Well 1-25 Location: 14S-21W: SW 25 Discovery Date: 04/08/2010 Producing zone: Lansing-Kansas City Oil

Year	Oil			Gas
	Production (bbls)	Wells	Cumulative (bbls)	Production (mcf)	Wells	Cumulative (mcf)
1966	71,016	18	1,276,954	-	-	0
1967	73,285	18	1,350,239	-	-	0
1968	83,851	18	1,434,090	-	-	0
1969	71,890	19	1,505,980	-	-	0
1970	68,023	20	1,574,003	-	-	0
1971	59,463	20	1,633,466	-	-	0
1972	47,020	20	1,680,486	-	-	0
1973	39,461	20	1,719,947	-	-	0
1974	51,311	20	1,771,258	-	-	0
1975	60,789	20	1,832,047	-	-	0
1976	57,079	20	1,889,126	-	-	0
1977	60,766	20	1,949,892	-	-	0
1978	56,046	20	2,005,938	-	-	0
1979	39,600	20	2,045,538	-	-	0
1980	31,975	20	2,077,513	-	-	0
1981	32,598	19	2,110,111	-	-	0
1982	24,746	19	2,134,857	-	-	0
1983	20,527	16	2,155,384	-	-	0
1984	19,931	15	2,175,315	-	-	0
1985	20,724	13	2,196,039	-	-	0
1986	19,414	13	2,215,453	-	-	0
1987	15,806	11	2,231,259	-	-	0
1988	16,140	11	2,247,399	-	-	0
1989	18,744	11	2,266,143	-	-	0
1990	15,988	11	2,282,131	-	-	0
1991	14,447	11	2,296,578	-	-	0
1992	13,379	11	2,309,957	-	-	0
1993	11,627	11	2,321,584	-	-	0
1994	11,925	11	2,333,509	-	-	0
1995	10,659	11	2,344,168	-	-	0
1996	10,171	11	2,354,339	-	-	0
1997	8,878	9	2,363,217	-	-	0
1998	8,667	8	2,371,884	-	-	0
1999	6,563	6	2,378,447	-	-	0
2000	4,711	6	2,383,158	-	-	0
2001	6,003	6	2,389,161	-	-	0
2002	5,364	6	2,394,525	-	-	0
2003	5,628	6	2,400,153	-	-	0
2004	5,385	5	2,405,538	-	-	0
2005	4,586	5	2,410,124	-	-	0
2006	5,725	5	2,415,849	-	-	0
2007	6,817	7	2,422,666	-	-	0
2008	8,158	8	2,430,824	-	-	0
2009	7,180	7	2,438,004	-	-	0
2010	15,225	11	2,453,229	-	-	0
2011	10,284	10	2,463,513	-	-	0
2012	9,070	11	2,472,583	-	-	0
2013	7,671	10	2,480,254	-	-	0
2014	6,556	10	2,486,810	-	-	0
2015	6,104	10	2,492,914	-	-	0
2016	7,457	10	2,500,371	-	-	0
2017	5,613	10	2,505,984	-	-	0
2018	5,455	9	2,511,439	-	-	0
2019	5,578	9	2,517,017	-	-	0
2020	4,554	7	2,521,571	-	-	0
2021	5,298	9	2,526,869	-	-	0
2022	4,794	9	2,531,663	-	-	0
2023	4,384	8	2,536,047	-	-	0
2024	3,807	9	2,539,854	-	-	0
2025	3,867	9	2,543,721	-	-	0

Updated through 8-2025.
Note: bbls is barrels; mcf is 1000 cubic feet.