Shell 14-4 Clarkson State

API 4006305059 · Harding County, South Dakota · Buffalo field

ProducingOil

API

4006305059

Operator

Continental Resources Inc.

County

Harding

Field

Buffalo

Location

SWSW Sec 04 Twp 021N Rng 04E

Permit

278

Production

578 monthly filings with South Dakota, Feb 1960 to Mar 2008. Each product is in its own unit and the four are never added.

Cumulative oil

608,848 bbl

Cumulative gas

1,495,687 MCF

Cumulative water

462,719 bbl

Period	Oil (bbl)	Gas (MCF)	Water (bbl)	Days
Mar 2008	0	0	0	0
Feb 2008	—	—	—	—
Jan 2008	131	6,048	836	21
Dec 2007	214	8,928	1,353	31
Nov 2007	223	7,776	1,667	27
Oct 2007	155	5,472	882	19
Sep 2007	257	8,640	1,295	30
Aug 2007	273	8,640	1,400	30
Jul 2007	288	8,352	1,276	29
Jun 2007	277	8,640	1,300	30
May 2007	324	8,928	1,389	31
Apr 2007	115	2,304	116	8
Mar 2007	245	7,776	1,160	27
Feb 2007	125	4,032	0	14
Jan 2007	303	8,928	1,410	31
Dec 2006	178	5,760	987	20
Nov 2006	22	576	87	30
Oct 2006	240	7,200	1,078	25
Sep 2006	274	8,640	1,289	30
Aug 2006	286	8,640	1,348	30
Jul 2006	161	6,048	772	21
Jun 2006	151	4,896	683	17
May 2006	263	8,928	287	31
Apr 2006	255	7,488	1,034	26
Mar 2006	220	8,640	1,296	30
Feb 2006	258	8,064	1,240	28
Jan 2006	201	5,184	807	18
Dec 2005	280	8,928	1,337	31
Nov 2005	256	8,640	1,324	30
Oct 2005	262	8,928	1,329	31
Sep 2005	320	8,640	1,383	30
Aug 2005	275	6,336	1,227	22
Jul 2005	57	1,440	220	5
Jun 2005	194	5,472	901	19
May 2005	263	8,928	1,234	31
Apr 2005	283	8,640	1,196	30
Mar 2005	286	8,928	1,236	31
Feb 2005	262	8,064	1,143	28
Jan 2005	295	8,928	1,273	31
Dec 2004	290	8,928	1,271	31
Nov 2004	297	8,640	1,254	30
Oct 2004	307	8,928	1,245	31
Sep 2004	296	8,640	1,237	30
Aug 2004	288	8,928	1,651	31
Jul 2004	315	8,928	1,298	31
Jun 2004	294	8,640	1,199	30
May 2004	313	8,928	1,339	31
Apr 2004	314	8,640	1,320	30
Mar 2004	301	8,928	1,293	31
Feb 2004	314	8,352	720	29
Jan 2004	338	8,352	1,653	29
Dec 2003	258	8,064	2,376	28
Nov 2003	344	8,640	1,910	30
Oct 2003	336	8,928	1,579	31
Sep 2003	334	8,640	1,639	30
Aug 2003	362	8,928	1,570	31
Jul 2003	401	8,352	1,754	29
Jun 2003	143	6,624	757	23
May 2003	310	8,928	1,258	31
Apr 2003	330	8,640	1,177	30
Mar 2003	345	8,640	1,345	30
Feb 2003	330	8,064	1,325	28
Jan 2003	366	8,928	1,368	31
Dec 2002	384	8,928	1,650	31
Nov 2002	344	8,352	1,554	30
Oct 2002	414	8,928	1,514	31
Sep 2002	319	8,640	1,347	30
Aug 2002	337	5,767	754	31
Jul 2002	226	8,928	695	31
Jun 2002	212	8,640	700	30
May 2002	232	8,928	770	31
Apr 2002	248	8,640	735	30
Mar 2002	248	8,928	800	31
Feb 2002	177	8,064	489	28
Jan 2002	213	8,928	567	31
Dec 2001	225	8,928	626	31
Nov 2001	181	8,640	538	30
Oct 2001	237	8,928	573	31
Sep 2001	207	8,640	588	30
Aug 2001	191	8,928	521	31
Jul 2001	206	8,928	598	31
Jun 2001	244	8,640	648	30
May 2001	227	8,928	659	31
Apr 2001	228	8,640	643	30
Mar 2001	236	8,640	695	30
Feb 2001	146	6,336	410	22
Jan 2001	385	8,352	1,202	29
Dec 2000	441	8,928	1,373	31
Nov 2000	369	8,352	1,135	29
Oct 2000	407	8,928	1,338	31
Sep 2000	417	8,640	1,355	30
Aug 2000	435	8,928	1,412	31
Jul 2000	432	8,928	1,297	31
Jun 2000	441	8,640	1,277	30
May 2000	465	8,928	1,086	31
Apr 2000	459	8,640	1,203	30
Mar 2000	506	8,928	5,247	31
Feb 2000	483	8,352	1,157	29
Jan 2000	413	6,048	876	21
Dec 1999	493	8,928	1,309	31
Nov 1999	447	8,640	1,536	30
Oct 1999	329	6,624	1,023	23
Sep 1999	477	8,352	1,162	29
Aug 1999	491	8,928	894	31
Jul 1999	517	8,928	1,237	31
Jun 1999	419	8,640	1,211	30
May 1999	531	8,928	1,375	31
Apr 1999	553	8,640	1,328	30
Mar 1999	563	8,928	1,365	27
Feb 1999	563	7,776	1,365	27
Jan 1999	422	6,048	848	21
Dec 1998	366	3,546	758	17
Nov 1998	546	4,728	1,304	26
Oct 1998	593	6,107	807	30
Sep 1998	590	5,910	1,173	30
Aug 1998	622	6,107	1,160	31
Jul 1998	646	6,107	1,141	31
Jun 1998	611	5,713	1,180	30
May 1998	672	6,107	1,140	31
Apr 1998	660	5,133	1,093	30
Mar 1998	701	5,487	1,170	31
Feb 1998	595	4,956	787	23
Jan 1998	636	5,310	1,096	30
Dec 1997	719	5,487	1,173	31
Nov 1997	713	5,310	919	30
Oct 1997	767	5,487	1,261	31
Sep 1997	715	4,956	1,052	29
Aug 1997	798	5,487	1,521	31
Jul 1997	750	4,956	1,648	28
Jun 1997	789	5,310	1,817	30
May 1997	887	5,487	1,864	31
Apr 1997	988	5,310	2,204	30
Mar 1997	692	4,602	1,477	26
Feb 1997	762	495	1,080	28
Jan 1997	912	5,487	940	31
Dec 1996	859	5,310	670	30
Nov 1996	876	5,310	720	30
Oct 1996	902	5,487	720	31
Sep 1996	879	5,310	480	30
Aug 1996	913	5,487	870	31
Jul 1996	907	5,487	720	31
Jun 1996	888	5,310	1,120	30
May 1996	926	5,487	770	31
Apr 1996	892	5,310	1,320	30
Mar 1996	934	5,487	920	31
Feb 1996	883	5,133	560	29
Jan 1996	934	5,487	1,680	31
Dec 1995	975	0	0	31
Nov 1995	930	4,980	1,500	30
Oct 1995	955	5,146	1,550	31
Sep 1995	880	4,980	1,500	30
Aug 1995	969	5,146	1,550	31
Jul 1995	—	—	—	—
Jun 1995	909	4,980	1,500	30
May 1995	938	5,146	1,550	31
Apr 1995	957	4,980	1,500	30
Mar 1995	966	4,814	1,363	29
Feb 1995	876	4,648	1,316	28
Jan 1995	992	5,146	1,457	31
Dec 1994	988	5,146	1,457	31
Nov 1994	964	4,980	1,440	30
Oct 1994	1,005	5,146	1,116	31
Sep 1994	936	4,648	868	28
Aug 1994	900	5,146	961	31
Jul 1994	943	5,146	961	31
Jun 1994	924	4,316	806	26
May 1994	961	5,146	961	31
Apr 1994	787	4,648	896	28
Mar 1994	970	5,146	992	31
Feb 1994	878	4,648	896	28
Jan 1994	989	5,146	744	31
Dec 1993	960	5,146	992	31
Nov 1993	952	5,146	992	31
Oct 1993	977	5,146	992	31
Sep 1993	855	4,980	900	30
Aug 1993	1,011	4,814	928	29
Jul 1993	974	5,146	992	31
Jun 1993	928	4,980	1,500	30
May 1993	939	5,146	1,550	31
Apr 1993	973	4,482	1,350	27
Mar 1993	978	5,146	1,550	31
Feb 1993	887	4,648	1,400	28
Jan 1993	1,006	5,146	992	31
Dec 1992	959	5,146	992	31
Nov 1992	959	4,980	960	30
Oct 1992	944	5,146	992	31
Sep 1992	943	4,980	1,290	30
Aug 1992	955	5,177	930	31
Jul 1992	971	5,177	1,333	31
Jun 1992	938	5,133	1,247	29
May 1992	957	5,487	1,395	31
Apr 1992	934	5,310	1,500	30
Mar 1992	992	5,487	1,333	31
Feb 1992	1,061	5,510	1,537	29
Jan 1992	557	3,072	792	24
Dec 1991	857	3,968	1,147	31
Nov 1991	828	4,230	1,110	30
Oct 1991	854	4,371	1,054	31
Sep 1991	830	4,200	1,020	30
Aug 1991	846	4,340	1,054	31
Jul 1991	871	4,340	1,054	31
Jun 1991	669	4,004	884	26
May 1991	842	4,620	1,050	30
Apr 1991	846	4,620	1,050	30
Mar 1991	887	4,774	1,085	31
Feb 1991	794	3,724	980	28
Jan 1991	924	4,123	1,116	31
Dec 1990	806	4,582	1,392	29
Nov 1990	765	4,740	1,050	30
Oct 1990	909	4,898	1,085	31
Sep 1990	906	3,540	1,050	30
Aug 1990	801	3,658	806	31
Jul 1990	867	4,185	992	31
Jun 1990	878	4,050	1,020	30
May 1990	934	4,185	1,054	31
Apr 1990	887	4,050	1,020	30
Mar 1990	950	4,185	1,085	31
Feb 1990	871	3,920	980	28
Jan 1990	975	4,805	1,085	31
Dec 1989	994	4,061	1,116	31
Nov 1989	939	3,930	1,050	30
Oct 1989	997	4,061	1,116	31
Sep 1989	980	3,999	1,080	30
Aug 1989	1,016	4,146	1,131	29
Jul 1989	1,068	4,359	1,147	31
Jun 1989	1,027	4,691	1,110	30
May 1989	1,145	5,079	1,209	31
Apr 1989	1,120	4,640	1,260	30
Mar 1989	1,192	1,281	1,395	31
Feb 1989	1,121	1,205	1,288	28
Jan 1989	1,203	1,293	1,240	31
Dec 1988	1,257	107	558	31
Nov 1988	1,207	402	630	30
Oct 1988	1,343	448	1,116	31
Sep 1988	1,407	469	1,472	30
Aug 1988	1,373	0	1,287	30
Jul 1988	1,502	0	744	31
Jun 1988	1,533	0	1,290	30
May 1988	1,501	0	992	31
Apr 1988	1,328	443	1,050	30
Mar 1988	1,312	437	1,240	31
Feb 1988	1,188	396	1,100	25
Jan 1988	1,556	519	1,581	31
Dec 1987	1,948	649	1,457	29
Nov 1987	1,581	527	600	30
Oct 1987	1,399	466	600	30
Sep 1987	1,330	443	600	30
Aug 1987	1,430	477	930	31
Jul 1987	1,412	471	868	31
Jun 1987	1,370	457	1,020	30
May 1987	1,355	452	1,054	31
Apr 1987	1,408	469	1,020	30
Mar 1987	1,598	533	1,054	31
Feb 1987	1,524	508	952	28
Jan 1987	1,786	595	1,054	31
Dec 1986	1,408	469	918	27
Nov 1986	1,281	427	1,020	30
Oct 1986	1,577	526	1,054	31
Sep 1986	1,651	550	1,560	30
Aug 1986	1,663	554	3,193	31
Jul 1986	1,613	3,193	538	31
Jun 1986	1,758	586	3,090	30
May 1986	1,495	498	1,116	31
Apr 1986	1,628	543	1,036	—
Mar 1986	1,377	459	1,116	31
Feb 1986	1,041	88	840	28
Jan 1986	1,156	98	3,193	31
Dec 1985	1,166	99	589	31
Nov 1985	1,111	94	570	30
Oct 1985	1,164	99	589	31
Sep 1985	1,129	96	153	30
Aug 1985	1,082	92	544	31
Jul 1985	880	75	342	31
Jun 1985	866	74	221	30
May 1985	884	75	341	31
Apr 1985	732	62	1,025	20
Mar 1985	810	68	296	30
Feb 1985	782	66	153	28
Jan 1985	868	73	374	31
Dec 1984	864	73	372	31
Nov 1984	839	71	270	30
Oct 1984	865	74	372	31
Sep 1984	804	71	390	30
Aug 1984	863	73	372	31
Jul 1984	874	74	279	27
Jun 1984	834	71	150	30
May 1984	860	73	248	31
Apr 1984	837	71	390	30
Mar 1984	858	73	341	31
Feb 1984	807	69	377	29
Jan 1984	639	124	432	27
Dec 1983	868	74	434	31
Nov 1983	853	73	450	30
Oct 1983	874	74	465	31
Sep 1983	849	72	450	30
Aug 1983	812	69	465	31
Jul 1983	817	69	496	31
Jun 1983	762	65	464	29
May 1983	832	71	496	31
Apr 1983	795	68	480	30
Mar 1983	830	71	341	31
Feb 1983	756	64	308	28
Jan 1983	833	71	341	31
Dec 1982	761	65	420	30
Nov 1982	807	69	390	30
Oct 1982	829	70	403	31
Sep 1982	798	68	420	30
Aug 1982	821	70	434	31
Jul 1982	844	72	403	31
Jun 1982	750	64	360	30
May 1982	652	55	252	21
Apr 1982	881	75	360	30
Mar 1982	426	36	231	21
Feb 1982	474	40	190	19
Jan 1982	168	14	230	23
Dec 1981	1,326	113	310	31
Nov 1981	694	59	300	30
Oct 1981	1,233	105	217	31
Sep 1981	653	56	390	30
Aug 1981	919	78	372	31
Jul 1981	972	83	372	31
Jun 1981	980	83	360	30
May 1981	1,047	89	465	31
Apr 1981	932	79	360	30
Mar 1981	1,078	92	527	31
Feb 1981	891	76	405	27
Jan 1981	953	81	420	30
Dec 1980	1,027	87	558	31
Nov 1980	1,011	86	570	30
Oct 1980	1,005	85	310	31
Sep 1980	1,103	94	240	30
Aug 1980	605	51	432	16
Jul 1980	1,070	91	434	31
Jun 1980	1,039	88	510	30
May 1980	1,089	93	558	31
Apr 1980	1,050	89	480	30
Mar 1980	1,051	89	464	29
Feb 1980	1,037	88	493	29
Jan 1980	1,068	91	527	31
Dec 1979	1,086	92	620	31
Nov 1979	1,024	87	240	30
Oct 1979	1,085	92	248	31
Sep 1979	1,049	89	210	30
Aug 1979	1,074	91	186	31
Jul 1979	1,094	93	155	31
Jun 1979	1,042	89	210	30
May 1979	1,077	92	210	30
Apr 1979	1,040	88	210	30
Mar 1979	1,033	88	196	28
Feb 1979	954	81	216	27
Jan 1979	1,019	87	175	25
Dec 1978	825	70	156	28
Nov 1978	999	85	210	30
Oct 1978	902	77	217	31
Sep 1978	1,000	85	348	29
Aug 1978	1,125	96	403	31
Jul 1978	1,153	98	300	30
Jun 1978	1,103	94	348	29
May 1978	1,322	112	300	30
Apr 1978	1,163	97	145	29
Mar 1978	1,204	102	240	30
Feb 1978	991	84	812	28
Jan 1978	1,113	95	1,170	30
Dec 1977	722	63	459	27
Nov 1977	43	4	220	5
Oct 1977	1,481	126	1,364	31
Sep 1977	978	83	660	30
Aug 1977	1,242	106	202	31
Jul 1977	1,683	143	275	31
Jun 1977	915	78	149	29
May 1977	1,012	86	165	29
Apr 1977	755	64	123	29
Mar 1977	974	83	159	25
Feb 1977	123	10	20	17
Jan 1977	389	33	63	31
Dec 1976	727	62	118	31
Nov 1976	354	30	39	30
Oct 1976	554	47	62	29
Sep 1976	748	64	105	30
Aug 1976	637	54	60	30
Jul 1976	1,020	87	217	31
Jun 1976	513	44	210	30
May 1976	472	40	175	25
Apr 1976	665	57	210	30
Mar 1976	789	67	217	31
Feb 1976	982	83	203	29
Jan 1976	844	72	243	27
Dec 1975	770	65	270	30
Nov 1975	1,242	106	270	30
Oct 1975	1,048	89	270	30
Sep 1975	649	55	252	28
Aug 1975	800	68	270	30
Jul 1975	669	57	234	26
Jun 1975	729	62	252	28
May 1975	947	81	261	29
Apr 1975	488	41	261	29
Mar 1975	637	54	273	31
Feb 1975	694	59	243	27
Jan 1975	624	53	252	28
Dec 1974	745	83	261	29
Nov 1974	982	84	270	30
Oct 1974	603	51	261	29
Sep 1974	683	58	270	30
Aug 1974	825	70	270	30
Jul 1974	833	71	270	30
Jun 1974	811	69	243	26
May 1974	980	83	294	30
Apr 1974	683	58	205	30
Mar 1974	749	64	225	31
Feb 1974	904	77	271	28
Jan 1974	629	53	270	31
Dec 1973	606	52	260	31
Nov 1973	610	52	261	30
Oct 1973	643	55	276	31
Sep 1973	774	66	332	29
Aug 1973	918	78	393	31
Jul 1973	969	82	415	31
Jun 1973	905	77	388	30
May 1973	954	81	409	31
Apr 1973	906	77	388	27
Mar 1973	1,055	90	452	31
Feb 1973	973	83	417	28
Jan 1973	747	63	320	30
Dec 1972	1,089	92	467	31
Nov 1972	927	79	398	30
Oct 1972	935	0	401	31
Sep 1972	870	74	373	30
Aug 1972	920	78	395	31
Jul 1972	790	67	339	31
Jun 1972	622	53	267	30
May 1972	908	77	390	31
Apr 1972	849	72	364	30
Mar 1972	795	68	341	31
Feb 1972	794	67	341	29
Jan 1972	695	59	298	31
Dec 1971	923	78	396	31
Nov 1971	927	79	398	30
Oct 1971	870	74	373	31
Sep 1971	888	75	381	30
Aug 1971	954	81	409	30
Jul 1971	961	82	412	31
Jun 1971	890	76	382	30
May 1971	1,035	88	444	31
Apr 1971	1,001	85	429	30
Mar 1971	1,099	93	471	31
Feb 1971	752	64	323	26
Jan 1971	1,089	93	467	31
Dec 1970	1,144	97	491	31
Nov 1970	940	80	403	30
Oct 1970	1,064	90	456	31
Sep 1970	933	79	400	29
Aug 1970	1,044	89	448	31
Jul 1970	1,033	88	443	31
Jun 1970	1,007	86	432	29
May 1970	1,090	93	468	31
Apr 1970	1,104	94	475	30
Mar 1970	1,262	107	541	31
Feb 1970	1,136	96	487	28
Jan 1970	804	68	345	31
Dec 1969	1,038	88	445	31
Nov 1969	1,109	94	460	30
Oct 1969	1,033	88	443	26
Sep 1969	1,155	98	495	30
Aug 1969	1,021	87	438	29
Jul 1969	1,063	90	456	30
Jun 1969	1,093	93	468	30
May 1969	1,192	101	511	31
Apr 1969	885	75	379	25
Mar 1969	803	68	344	19
Feb 1969	921	78	395	27
Jan 1969	965	82	414	28
Dec 1968	1,184	101	307	31
Nov 1968	1,149	98	492	29
Oct 1968	1,219	104	522	31
Sep 1968	1,443	123	618	30
Aug 1968	1,021	87	438	31
Jul 1968	1,409	120	604	31
Jun 1968	1,510	128	647	30
May 1968	1,631	139	699	31
Apr 1968	1,135	96	486	27
Mar 1968	1,542	131	661	31
Feb 1968	1,098	93	471	27
Jan 1968	1,261	107	540	27
Dec 1967	1,380	117	591	31
Nov 1967	1,418	121	608	30
Oct 1967	1,402	119	601	31
Sep 1967	1,391	118	596	30
Aug 1967	1,314	112	563	30
Jul 1967	1,313	112	563	30
Jun 1967	1,060	90	454	27
May 1967	1,173	100	503	31
Apr 1967	1,314	112	563	30
Mar 1967	1,556	132	667	30
Feb 1967	1,149	98	492	28
Jan 1967	1,524	130	653	30
Dec 1966	1,638	139	702	31
Nov 1966	1,785	152	765	30
Oct 1966	1,751	149	723	31
Sep 1966	1,254	107	537	30
Aug 1966	1,257	107	539	29
Jul 1966	1,371	117	588	31
Jun 1966	1,369	116	587	30
May 1966	1,469	125	629	31
Apr 1966	1,289	110	552	27
Mar 1966	1,457	124	624	30
Feb 1966	1,420	121	609	28
Jan 1966	1,519	129	651	29
Dec 1965	1,871	159	802	31
Nov 1965	1,844	157	790	30
Oct 1965	1,691	144	696	31
Sep 1965	1,354	115	580	28
Aug 1965	1,575	134	675	28
Jul 1965	1,541	131	660	25
Jun 1965	1,729	147	741	30
May 1965	1,834	156	786	30
Apr 1965	1,664	141	713	28
Mar 1965	2,126	181	911	31
Feb 1965	1,650	140	707	28
Jan 1965	917	78	400	20
Dec 1964	1,248	106	420	21
Nov 1964	2,149	183	600	30
Oct 1964	2,032	173	620	31
Sep 1964	1,573	134	600	30
Aug 1964	1,984	169	620	31
Jul 1964	1,105	94	380	19
Jun 1964	1,394	119	500	25
May 1964	2,667	227	620	31
Apr 1964	2,565	218	600	30
Mar 1964	2,380	202	620	31
Feb 1964	2,346	199	580	29
Jan 1964	2,531	215	621	31
Dec 1963	2,721	231	680	31
Nov 1963	818	70	368	30
Oct 1963	1,658	141	746	31
Sep 1963	2,314	197	1,128	30
Aug 1963	2,525	215	1,231	31
Jul 1963	2,541	216	1,238	31
Jun 1963	2,484	211	1,211	30
May 1963	3,253	277	1,585	31
Apr 1963	2,313	197	1,127	26
Mar 1963	2,704	230	1,318	31
Feb 1963	2,731	272	1,331	28
Jan 1963	2,195	187	1,070	23
Dec 1962	2,948	251	1,437	31
Nov 1962	2,788	237	1,200	30
Oct 1962	2,665	399	1,299	31
Sep 1962	2,409	361	1,113	28
Aug 1962	1,931	289	1,150	30
Jul 1962	2,739	410	1,043	31
Jun 1962	2,926	438	984	27
May 1962	2,386	357	688	20
Apr 1962	905	44	344	10
Mar 1962	2,663	130	1,047	30
Feb 1962	2,470	121	821	26
Jan 1962	3,129	153	1,020	30
Dec 1961	3,234	158	981	31
Nov 1961	3,272	160	990	30
Oct 1961	3,422	167	1,085	31
Sep 1961	3,260	159	1,048	28
Aug 1961	3,115	152	969	28
Jul 1961	3,399	166	889	31
Jun 1961	3,354	164	750	30
May 1961	3,318	162	897	31
Apr 1961	3,011	355	1,305	30
Mar 1961	3,645	430	1,364	31
Feb 1961	3,168	373	1,274	27
Jan 1961	3,120	368	1,426	31
Dec 1960	3,333	393	1,288	28
Nov 1960	3,815	450	1,201	29
Oct 1960	4,314	509	1,608	31
Sep 1960	3,661	432	1,406	29
Aug 1960	3,678	434	1,230	30
Jul 1960	3,487	411	1,064	28
Jun 1960	3,296	388	969	24
May 1960	3,877	457	958	28
Apr 1960	4,433	523	1,031	27
Mar 1960	4,834	570	1,337	27
Feb 1960	6,435	759	1,204	26

A dash is a period the well filed with no volume for that product.

Location

45.807616, -103.643138

45.80762, -103.64314 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom

Every well in Harding County, South Dakota

South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-08-19.