HALFF "A"

Name: HALFF "A" lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by APACHE CORPORATION (P-5 27200) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 7108District 7CField 85279200OilCasinghead gasSave Export

Value, all time

$3.7 M

Jan 1993 – Mar 2019

Value, last 12 filed months

$15 k

at the published price for each month

Months reported

315

no gaps in the span

Streams

oil, casinghead gas

The SPRABERRY (TREND AREA) field

The Railroad Commission's own record for the field this lease produces from, including the spacing rule that governs how close together its wells may be drilled.

These are facts about the field, not about this lease. The field holds 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered

1904-12-31

as the register files it

Field class

Oil and gas

the register's own label

Between wells

0 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2016-03-08.

The Commission's schedule remark for this field reads: “AREA) 85279200.”

What this lease produced, and what it was worth

Oil and condensate are valued on the volume the state records as disposed of; gas and casinghead gas on the volume produced. They are different columns of different files, and the difference is not cosmetic.

Stream	Basis	Volume	Value
Oil	Disposition	74,537 bbl	$2,882,470
Casinghead gas	Production	254,554 Mcf	$865,347
Total			$3,747,817

32,110 Mcf of this lease's gas, across 48 months, carries no value here. No free Texas wellhead gas price exists before 1997, so those months are left out of the total rather than valued at zero. The total above is therefore a floor, not an estimate.

Wells on this lease (4)

Every wellbore the Railroad Commission records against this lease key, with the depth, the last completion and the plug date exactly as filed. A well with no plug date is not stated to be producing — the state files no such flag.

These wells centre on 31.4047, -101.7567. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.40436, -101.75611 · centre of the wells drawn, derived⌘ or Ctrl + scroll to zoom

What these wells add up to

Every figure below is counted over all of this lease's wells, not over the rows listed above. The Railroad Commission files two facts about a well's state — a plug date and a proration-schedule flag — and a well can carry both, so they are published as separate counts and never merged into a status.

On the schedule

100.0%

4 of 4 wells

With a plug date

100.0%

4 of 4 wells

Median depth

8,365 ft

4 wells filed one

Completion to plug

24.8 years

median over 4 wells

What the state filed about each well

On the RRC proration schedule

4100.0%

A plug date is filed

4100.0%

BothOn the schedule and plugged. Neither fact cancels the other.

4100.0%

NeitherNo plug date, and not on the schedule.

00.0%

A plug date is the date the Commission recorded the wellbore as sealed with cement and abandoned. It is the only end-of-life fact Texas files. There is no "active" flag on a well, so this page does not print one — a well with no plug date is not stated to be producing.

How deep they were drilled

Between 8,345 and 8,510 ft, median 8,365 ft, over the 4 wells that filed a depth.

Completions filed

Feb 1977 – Apr 2006

4 of 4 wells

Plug dates filed

Nov 2000 – Oct 2018

4 of 4 wells

Last completion to plug: a median of 24.8 years across the 4 wells that filed both dates, with the middle half between 20.9 years and 29.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells


42-38335707	6TM	8,510 ft	Apr 2006	Oct 2018	Yes
42-38330835	3	8,370 ft	Jun 1977	Sep 2018	Yes
42-38330834	2	8,345 ft	Apr 1977	Dec 2002	Yes
42-38330805	1	8,360 ft	Feb 1977	Nov 2000	Yes

The API number is the state's, prefixed 42 for Texas. A well is matched to this lease by the lease key the Commission files on the wellbore record, so a well that has moved between leases appears under each one it was filed against.

Every month this lease reported (315)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

315 months


Mar 2019	0	0	56.80	3.06	$0
Feb 2019	0	0	50.85	2.79	$0
Jan 2019	59	0	46.03	3.23	$2,716
Dec 2018	0	0	46.59	4.19	$0
Nov 2018	0	0	52.93	4.24	$0
Oct 2018	0	0	61.44	3.40	$0
Sep 2018	0	0	59.54	3.11	$0
Aug 2018	0	0	59.40	3.07	$0
Jul 2018	0	0	65.14	2.93	$0
Jun 2018	0	0	60.18	3.08	$0
May 2018	182	0	65.38	2.90	$11,899
Apr 2018	0	0	63.84	2.90	$0
Mar 2018	0	0	61.22	2.79	$0
Feb 2018	0	0	61.78	2.77	$0
Jan 2018	0	0	62.87	4.01	$0
Dec 2017	0	0	57.27	2.92	$0
Nov 2017	0	11	55.42	3.12	$34
Oct 2017	111	89	49.29	2.98	$5,737
Sep 2017	0	152	47.52	3.09	$469
Aug 2017	65	172	45.37	3.00	$3,466
Jul 2017	0	157	43.87	3.09	$485
Jun 2017	0	31	42.49	3.09	$96
May 2017	0	181	45.37	3.26	$591
Apr 2017	0	91	47.93	3.21	$292
Mar 2017	0	140	46.77	2.98	$418
Feb 2017	0	122	50.45	2.95	$360
Jan 2017	0	210	49.41	3.42	$718
Dec 2016	56	268	48.76	3.72	$3,728
Nov 2016	47	176	42.49	2.64	$2,462
Oct 2016	100	169	46.19	3.09	$5,141
Sep 2016	70	199	41.55	3.10	$3,526
Aug 2016	0	480	41.44	2.92	$1,404
Jul 2016	0	206	41.62	2.92	$602
Jun 2016	0	261	45.35	2.69	$701
May 2016	71	135	42.52	1.99	$3,288
Apr 2016	0	294	36.56	1.99	$585
Mar 2016	66	294	33.01	1.79	$2,706
Feb 2016	59	237	26.47	2.06	$2,051
Jan 2016	70	138	27.35	2.36	$2,241
Dec 2015	118	133	32.36	2.00	$4,085
Nov 2015	150	104	38.79	2.17	$6,044
Oct 2015	0	89	43.55	2.43	$216
Sep 2015	302	88	42.99	2.76	$13,226
Aug 2015	132	141	40.16	2.87	$5,706
Jul 2015	313	308	48.15	2.95	$15,978
Jun 2015	0	275	56.15	2.88	$793
May 2015	0	33	55.21	2.96	$98
Apr 2015	0	5	49.82	2.71	$14
Mar 2015	137	4	42.89	2.93	$5,888
Feb 2015	0	43	44.66	2.98	$128
Jan 2015	0	28	43.43	3.10	$87
Dec 2014	160	243	54.69	3.59	$9,623
Nov 2014	0	93	70.46	4.25	$395
Oct 2014	0	185	78.30	3.90	$722
Sep 2014	0	222	86.16	4.05	$898
Aug 2014	0	725	89.39	4.04	$2,925
Jul 2014	96	813	96.56	4.18	$12,668
Jun 2014	0	558	98.16	4.74	$2,643
May 2014	0	453	94.73	4.73	$2,141
Apr 2014	91	415	95.94	4.81	$10,726
Mar 2014	0	418	95.89	5.06	$2,114
Feb 2014	0	366	97.40	6.19	$2,266
Jan 2014	0	294	90.40	4.86	$1,429
Dec 2013	95	298	91.82	4.35	$10,021
Nov 2013	174	392	88.85	3.74	$16,925
Oct 2013	0	357	97.42	3.78	$1,349
Sep 2013	79	354	104.11	3.72	$9,541
Aug 2013	77	419	104.25	3.52	$9,503
Jul 2013	0	457	102.52	3.72	$1,699
Jun 2013	103	478	94.40	3.93	$11,603
May 2013	233	633	94.83	4.15	$24,722
Apr 2013	0	483	93.96	4.28	$2,068
Mar 2013	130	139	93.62	3.91	$12,714
Feb 2013	148	324	91.23	3.42	$14,610
Jan 2013	150	651	91.60	3.42	$15,966
Dec 2012	151	593	86.77	3.42	$15,130
Nov 2012	142	614	86.95	3.62	$14,573
Oct 2012	279	605	89.38	3.40	$26,994
Sep 2012	127	556	94.67	2.92	$13,646
Aug 2012	0	818	92.66	2.91	$2,379
Jul 2012	118	852	85.13	3.02	$12,619
Jun 2012	127	823	79.82	2.52	$12,210
May 2012	129	695	91.61	2.49	$13,547
Apr 2012	137	777	101.65	2.00	$15,478
Mar 2012	139	810	105.05	2.22	$16,402
Feb 2012	147	731	101.10	2.57	$16,741
Jan 2012	136	779	98.09	2.73	$15,470
Dec 2011	115	743	96.87	3.24	$13,547
Nov 2011	123	680	95.72	3.31	$14,025
Oct 2011	119	795	84.98	3.65	$13,013
Sep 2011	119	867	83.62	3.99	$13,406
Aug 2011	252	974	83.40	4.15	$25,058
Jul 2011	0	968	94.14	4.52	$4,373
Jun 2011	269	823	92.90	4.64	$28,809
May 2011	144	1,098	98.13	4.40	$18,967
Apr 2011	305	1,065	105.96	4.33	$36,933
Mar 2011	305	1,087	96.36	4.06	$33,800
Feb 2011	308	983	85.64	4.18	$30,486
Jan 2011	144	192	86.50	4.59	$13,337
Dec 2010	293	1,023	85.73	4.35	$29,567
Nov 2010	278	1,016	80.84	3.80	$26,330
Oct 2010	295	1,079	78.10	3.51	$26,826
Sep 2010	305	1,067	72.63	3.98	$26,398
Aug 2010	459	1,108	73.68	4.42	$38,716
Jul 2010	151	934	72.55	4.74	$15,379
Jun 2010	155	926	70.36	4.91	$15,453
May 2010	301	1,028	71.12	4.24	$25,761
Apr 2010	308	995	81.69	4.12	$29,263
Mar 2010	323	1,163	78.39	4.39	$30,424
Feb 2010	165	1,195	73.58	5.44	$18,644
Jan 2010	746	1,072	74.36	5.96	$61,866
Dec 2009	0	1,119	71.44	5.48	$6,136
Nov 2009	0	970	74.59	3.75	$3,639
Oct 2009	130	908	72.54	4.11	$13,162
Sep 2009	141	225	65.54	3.06	$9,931
Aug 2009	462	835	67.42	3.22	$33,835
Jul 2009	226	788	61.13	3.46	$16,545
Jun 2009	676	838	66.16	3.90	$47,988
May 2009	241	470	54.74	3.93	$15,037
Apr 2009	0	382	46.77	3.59	$1,370
Mar 2009	256	288	42.14	4.06	$11,957
Feb 2009	0	334	32.81	4.63	$1,547
Jan 2009	405	378	35.86	5.37	$16,554
Dec 2008	0	373	37.10	5.98	$2,229
Nov 2008	0	133	55.49	6.86	$912
Oct 2008	556	165	75.24	6.92	$42,976
Sep 2008	0	357	101.76	7.88	$2,812
Aug 2008	132	476	114.22	8.48	$19,115
Jul 2008	257	484	131.08	11.39	$39,200
Jun 2008	333	392	131.33	13.03	$48,842
May 2008	230	365	123.17	11.57	$32,554
Apr 2008	442	506	110.31	10.45	$54,047
Mar 2008	313	498	101.90	9.66	$36,707
Feb 2008	154	417	92.53	8.77	$17,907
Jan 2008	134	231	90.38	8.21	$14,006
Dec 2007	140	268	88.33	7.30	$14,323
Nov 2007	416	289	91.67	7.29	$40,242
Oct 2007	200	288	82.85	6.92	$18,564
Sep 2007	273	334	75.84	6.24	$22,790
Aug 2007	116	313	69.06	6.39	$10,010
Jul 2007	266	344	70.90	6.39	$21,057
Jun 2007	487	283	62.00	7.55	$32,330
May 2007	236	470	58.74	7.85	$17,550
Apr 2007	145	510	59.61	7.81	$12,624
Mar 2007	284	822	56.92	7.30	$22,168
Feb 2007	141	716	55.10	8.22	$13,652
Jan 2007	418	991	50.30	6.73	$27,692
Dec 2006	435	1,086	56.65	6.92	$32,156
Nov 2006	600	1,014	54.20	7.62	$40,244
Oct 2006	443	1,181	54.90	6.01	$31,423
Sep 2006	275	1,103	60.08	5.04	$22,078
Aug 2006	614	1,259	68.71	7.34	$51,429
Jul 2006	724	1,477	69.37	6.34	$59,592
Jun 2006	622	1,517	66.28	6.38	$50,911
May 2006	937	45	66.01	6.42	$62,141
Apr 2006	100	120	64.39	7.36	$7,322
Mar 2006	166	33	56.70	7.08	$9,646
Feb 2006	94	217	57.59	7.75	$7,095
Jan 2006	168	278	60.59	8.93	$12,663
Dec 2005	122	311	54.94	13.42	$10,875
Nov 2005	79	463	54.69	10.59	$9,223
Oct 2005	160	508	58.34	13.80	$16,343
Sep 2005	150	448	61.45	12.08	$14,629
Aug 2005	84	421	61.51	9.80	$9,291
Jul 2005	238	751	55.69	7.84	$19,145
Jun 2005	158	658	52.33	7.38	$13,125
May 2005	0	501	45.22	6.65	$3,332
Apr 2005	0	0	49.20	7.36	$0
Mar 2005	0	0	50.37	7.15	$0
Feb 2005	96	566	45.22	6.31	$7,914
Jan 2005	77	865	43.16	6.32	$8,792
Dec 2004	68	465	39.86	6.75	$5,850
Nov 2004	67	577	45.28	6.33	$6,686
Oct 2004	132	668	49.70	6.52	$10,912
Sep 2004	174	680	43.24	5.28	$11,117
Aug 2004	0	572	42.37	5.55	$3,175
Jul 2004	165	554	38.28	6.08	$9,687
Jun 2004	110	635	36.10	6.43	$8,056
May 2004	87	729	37.48	6.49	$7,995
Apr 2004	227	635	34.47	5.86	$11,545
Mar 2004	112	599	34.36	5.53	$7,161
Feb 2004	224	602	32.45	5.51	$10,586
Jan 2004	220	634	32.03	6.30	$11,041
Dec 2003	113	689	30.26	6.30	$7,761
Nov 2003	190	532	28.80	4.60	$7,917
Oct 2003	94	630	28.17	4.76	$5,647
Sep 2003	187	613	26.31	4.75	$7,831
Aug 2003	94	835	29.76	5.13	$7,081
Jul 2003	191	860	29.41	5.17	$10,064
Jun 2003	87	768	28.56	5.98	$7,080
May 2003	145	728	26.59	5.97	$8,204
Apr 2003	163	880	26.67	5.41	$9,106
Mar 2003	110	842	31.14	6.10	$8,558
Feb 2003	90	749	33.48	7.93	$8,950
Jan 2003	178	874	30.31	5.58	$10,274
Dec 2002	168	802	26.91	4.85	$8,414
Nov 2002	180	821	24.66	4.14	$7,835
Oct 2002	170	864	26.46	4.23	$8,152
Sep 2002	89	714	27.44	3.64	$5,038
Aug 2002	160	737	25.96	3.16	$6,486
Jul 2002	80	840	24.58	3.06	$4,538
Jun 2002	174	950	23.73	3.34	$7,300
May 2002	275	1,355	24.66	3.58	$11,638
Apr 2002	266	1,282	23.65	3.51	$10,794
Mar 2002	179	1,333	22.00	3.10	$8,074
Feb 2002	392	1,290	18.22	2.38	$10,207
Jan 2002	357	1,253	17.17	2.38	$9,106
Dec 2001	232	1,468	16.93	2.36	$7,399
Nov 2001	223	1,478	18.07	2.41	$7,585
Oct 2001	388	1,616	19.78	2.53	$11,761
Sep 2001	388	1,580	24.26	2.25	$12,970
Aug 2001	277	1,658	24.87	3.05	$11,951
Jul 2001	389	1,693	23.93	3.20	$14,721
Jun 2001	422	1,153	24.56	3.82	$14,774
May 2001	261	1,346	25.52	4.31	$12,458
Apr 2001	337	1,275	24.68	5.34	$15,120
Mar 2001	553	1,284	24.54	5.38	$20,474
Feb 2001	403	929	27.75	5.77	$16,541
Jan 2001	330	1,114	27.47	8.40	$18,421
Dec 2000	242	1,178	26.88	9.12	$17,251
Nov 2000	332	749	32.21	5.66	$14,932
Oct 2000	153	1,048	31.23	5.15	$10,171
Sep 2000	235	2,081	31.87	5.19	$18,283
Aug 2000	463	1,804	29.64	4.54	$21,915
Jul 2000	287	1,697	28.53	4.09	$15,128
Jun 2000	178	1,688	29.30	4.40	$12,638
May 2000	291	1,396	27.26	3.68	$13,070
Apr 2000	180	1,392	24.51	3.12	$8,749
Mar 2000	357	1,633	28.42	2.86	$14,816
Feb 2000	249	1,708	27.62	2.73	$11,534
Jan 2000	242	2,054	25.27	2.48	$11,210
Dec 1999	359	2,154	24.28	2.42	$13,937
Nov 1999	243	2,614	23.19	2.43	$11,998
Oct 1999	244	2,764	20.98	2.80	$12,869
Sep 1999	270	2,901	21.75	2.62	$13,470
Aug 1999	268	3,064	19.26	2.88	$13,973
Jul 1999	281	4,052	17.89	2.37	$14,640
Jun 1999	135	3,832	15.94	2.36	$11,203
May 1999	209	3,707	15.79	2.32	$11,904
Apr 1999	232	2,793	15.10	2.21	$9,670
Mar 1999	284	1,548	12.47	1.84	$6,387
Feb 1999	266	2,768	9.98	1.82	$7,686
Jan 1999	334	2,887	10.38	1.90	$8,952
Dec 1998	364	2,888	9.20	1.77	$8,470
Nov 1998	441	2,830	10.89	2.19	$10,988
Oct 1998	518	2,939	12.42	1.97	$12,221
Sep 1998	290	3,157	12.59	2.08	$10,226
Aug 1998	470	3,289	11.30	1.91	$11,584
Jul 1998	524	2,837	11.74	2.24	$12,499
Jun 1998	681	2,314	11.24	2.24	$12,831
May 1998	352	2,171	12.62	2.21	$9,232
Apr 1998	578	2,028	13.04	2.51	$12,618
Mar 1998	351	2,001	12.80	2.31	$9,114
Feb 1998	445	1,736	13.95	2.30	$10,199
Jan 1998	565	1,999	14.70	2.15	$12,613
Dec 1997	606	2,028	16.32	2.41	$14,780
Nov 1997	508	1,943	18.19	3.09	$15,241
Oct 1997	618	1,856	19.25	3.15	$17,743
Sep 1997	619	1,266	17.74	2.95	$14,722
Aug 1997	1,085	1,366	17.86	2.55	$22,868
Jul 1997	798	950	17.58	2.25	$16,163
Jun 1997	1,429	1,010	17.24	2.26	$26,916
May 1997	1,270	609	18.97	2.31	$25,498
Apr 1997	1,284	767	17.88	2.08	$24,555
Mar 1997	1,911	802	18.95	1.94	$37,769
Feb 1997	1,424	1,009	20.49	2.21	$31,404
Jan 1997	1,429	802	23.48	3.54	$36,392
Dec 1996	1,272	838	23.32	—	$29,663
Nov 1996	644	837	21.97	—	$14,149
Oct 1996	985	894	23.31	—	$22,960
Sep 1996	1,274	43	22.22	—	$28,308
Aug 1996	977	438	20.26	—	$19,794
Jul 1996	1,308	1,347	19.55	—	$25,571
Jun 1996	1,468	1,316	18.73	—	$27,496
May 1996	686	1,538	19.43	—	$13,329
Apr 1996	110	501	21.51	—	$2,366
Mar 1996	137	445	19.38	—	$2,655
Feb 1996	132	490	16.98	—	$2,241
Jan 1996	135	388	17.07	—	$2,304
Dec 1995	133	504	17.19	—	$2,286
Nov 1995	0	671	16.00	—	$0
Oct 1995	164	505	15.43	—	$2,531
Sep 1995	0	586	16.18	—	$0
Aug 1995	157	548	15.92	—	$2,499
Jul 1995	152	603	15.24	—	$2,316
Jun 1995	167	509	16.41	—	$2,740
May 1995	170	619	17.56	—	$2,985
Apr 1995	0	777	17.73	—	$0
Mar 1995	146	947	16.44	—	$2,400
Feb 1995	162	775	16.58	—	$2,686
Jan 1995	150	1,012	15.92	—	$2,388
Dec 1994	139	960	15.03	—	$2,089
Nov 1994	129	840	15.90	—	$2,051
Oct 1994	125	701	15.58	—	$1,948
Sep 1994	251	568	15.29	—	$3,838
Aug 1994	0	563	16.13	—	$0
Jul 1994	124	735	17.56	—	$2,177
Jun 1994	250	628	17.09	—	$4,273
May 1994	114	662	15.88	—	$1,810
Apr 1994	115	629	14.14	—	$1,626
Mar 1994	117	639	12.46	—	$1,458
Feb 1994	113	552	12.50	—	$1,413
Jan 1994	115	681	12.66	—	$1,456
Dec 1993	217	701	12.33	—	$2,676
Nov 1993	107	631	14.49	—	$1,550
Oct 1993	111	574	15.85	—	$1,759
Sep 1993	218	607	15.03	—	$3,277
Aug 1993	114	569	15.66	—	$1,785
Jul 1993	112	512	15.46	—	$1,732
Jun 1993	215	511	16.79	—	$3,610
May 1993	109	326	17.68	—	$1,927
Apr 1993	109	347	18.05	—	$1,967
Mar 1993	108	663	18.14	—	$1,959
Feb 1993	224	672	17.90	—	$4,010
Jan 1993	147	708	16.93	—	$2,489

How to read this page

The arithmetic is one multiplication per stream per month. Here it is, worked, on a real row from the table above.

Jan 2019 — as filed, then multipliedworked

Oil                   59 bbl  × $ 46.03 =     $2,716
Casinghead gas         0 Mcf  × $  3.23 =         $0

────────────────────────────────────────────────────
Month total                                   $2,716

The volumes are the state's, unchanged

Every barrel and every Mcf on this page is a number the Railroad Commission of Texas published in its monthly production query. Nothing is modelled, estimated or filled in.

The dollars are a multiplication, not a valuation

Volume × a published monthly price. It is not what the operator was paid: it takes no account of a contract, a differential, a transportation deduction, or the share any one owner holds.

Oil and gas are priced differently

Oil is a Texas realisation — the crude oil first purchase price. Gas is a benchmark, because no free Texas wellhead gas series exists at any date. The prices page publishes the difference rather than correcting it away.

A lease is not a well

The state reports oil on lease and gas on well, and this page is the lease grain. 7C/O/7108 is the state's own key, not one this site invented.