MASSEY

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

Operated by BCE-MACH III LLC (P-5 40209) in the PANHANDLE, EAST field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 23737District 10Field 68826001NGPA filingGasSave Export

Value, all time

$676 k

Jan 1993 – May 2026

Value, last 12 filed months

$12 k

at the published price for each month

Months reported

401

no gaps in the span

Streams

gas

The PANHANDLE, EAST 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 2,114 leases and 2,114 wells, and the rule below applies to all of them.

Discovered

1935-12-10

as the register files it

Field class

Gas

the register's own label

Between wells

660 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 160 acres. The field rule took effect on 1989-05-01.

The Commission's schedule remark for this field reads: “67% ACRES X SIWP + (PLUS) 33% DELIVERABILITY”

Severance-tax incentive filings

Applications the operator filed to have this lease's gas taxed at a reduced state rate. A filing is an application, and this page never calls one a reduction that was granted.

Programme	Filings	With an approval date	Dated	Docket
NGPA	1	none	—	—

This says nothing about a royalty. A severance tax is charged to the operator. Whether a reduced rate reaches a royalty owner depends on the wording of the lease instrument, which is a private contract this site does not hold.

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
Gas	Production	195,421 Mcf	$676,118
Total			$676,118

39,644 Mcf of this lease's gas, across 46 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 (1)

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 35.2343, -100.7106. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.23433, -100.71064 · 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

0.0%

0 of 1 wells

With a plug date

0.0%

0 of 1 wells

Median depth

—

no depth filed

Completion to plug

—

no well filed both dates

What the state filed about each well

On the RRC proration schedule

00.0%

A plug date is filed

00.0%

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

00.0%

NeitherNo plug date, and not on the schedule.

1100.0%

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.

Completions filed

Oct 1953

1 of 1 wells

1 well


42-17901078	1	—	Oct 1953	—	—

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 (401)

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

401 months


May 2026	242	106.41	3.05	$737
Apr 2026	203	98.93	2.87	$583
Mar 2026	268	89.75	3.15	$844
Feb 2026	249	63.50	3.75	$934
Jan 2026	278	59.13	8.00	$2,223
Dec 2025	269	56.66	4.41	$1,187
Nov 2025	253	58.59	3.93	$993
Oct 2025	268	59.38	3.30	$886
Sep 2025	262	62.74	3.08	$806
Aug 2025	262	63.93	3.01	$790
Jul 2025	257	66.74	3.32	$852
Jun 2025	258	66.48	3.13	$807
May 2025	258	60.55	3.23	$834
Apr 2025	280	62.36	3.54	$992
Mar 2025	286	67.70	4.27	$1,221
Feb 2025	261	70.88	4.34	$1,133
Jan 2025	287	74.32	4.28	$1,228
Dec 2024	275	68.99	3.12	$858
Nov 2024	277	69.05	2.20	$609
Oct 2024	273	71.37	2.28	$623
Sep 2024	256	69.61	2.36	$605
Aug 2024	247	75.63	2.06	$510
Jul 2024	210	79.93	2.15	$451
Jun 2024	206	78.08	2.63	$543
May 2024	269	78.81	2.20	$591
Apr 2024	211	84.45	1.66	$350
Mar 2024	259	80.30	1.55	$400
Feb 2024	233	76.09	1.78	$416
Jan 2024	262	73.02	3.30	$864
Dec 2023	264	71.26	2.61	$689
Nov 2023	260	77.89	2.81	$730
Oct 2023	215	85.44	3.09	$664
Sep 2023	259	89.04	2.74	$708
Aug 2023	262	80.52	2.67	$700
Jul 2023	262	74.85	2.64	$692
Jun 2023	243	68.96	2.26	$549
May 2023	262	70.62	2.23	$584
Apr 2023	253	78.12	2.24	$566
Mar 2023	145	72.85	2.39	$347
Feb 2023	150	75.11	2.47	$370
Jan 2023	295	76.53	3.39	$999
Dec 2022	300	76.41	5.73	$1,719
Nov 2022	279	85.00	5.65	$1,575
Oct 2022	275	87.18	5.86	$1,613
Sep 2022	264	84.88	8.16	$2,155
Aug 2022	274	94.52	9.13	$2,501
Jul 2022	286	101.58	7.54	$2,157
Jun 2022	248	115.09	7.98	$1,978
May 2022	285	109.37	8.43	$2,403
Apr 2022	287	104.22	6.84	$1,962
Mar 2022	309	108.88	5.08	$1,569
Feb 2022	235	91.05	4.86	$1,142
Jan 2022	300	81.84	4.54	$1,361
Dec 2021	292	71.32	3.90	$1,139
Nov 2021	293	77.43	5.24	$1,534
Oct 2021	276	79.79	5.71	$1,577
Sep 2021	290	69.86	5.35	$1,552
Aug 2021	312	66.02	4.22	$1,317
Jul 2021	0	70.78	3.98	$0
Jun 2021	296	69.49	3.38	$1,001
May 2021	308	63.48	3.02	$929
Apr 2021	0	60.36	2.76	$0
Mar 2021	295	61.30	2.72	$802
Feb 2021	287	57.80	5.55	$1,592
Jan 2021	315	50.41	2.81	$885
Dec 2020	303	44.64	2.68	$811
Nov 2020	368	38.77	2.71	$996
Oct 2020	280	36.97	2.48	$694
Sep 2020	296	37.09	1.99	$589
Aug 2020	321	39.98	2.39	$766
Jul 2020	329	38.37	1.83	$600
Jun 2020	303	34.90	1.69	$512
May 2020	329	16.92	1.81	$597
Apr 2020	312	14.75	1.80	$563
Mar 2020	335	30.34	1.86	$622
Feb 2020	321	49.88	1.98	$636
Jan 2020	331	57.25	2.09	$693
Dec 2019	303	59.01	2.30	$698
Nov 2019	312	55.30	2.75	$858
Oct 2019	322	53.47	2.42	$779
Sep 2019	317	55.05	2.66	$842
Aug 2019	311	53.11	2.30	$717
Jul 2019	288	56.27	2.46	$709
Jun 2019	252	52.78	2.49	$628
May 2019	322	58.48	2.74	$882
Apr 2019	304	62.63	2.75	$836
Mar 2019	323	56.80	3.06	$989
Feb 2019	301	50.85	2.79	$840
Jan 2019	313	46.03	3.23	$1,010
Dec 2018	325	46.59	4.19	$1,360
Nov 2018	293	52.93	4.24	$1,242
Oct 2018	322	61.44	3.40	$1,094
Sep 2018	301	59.54	3.11	$936
Aug 2018	339	59.40	3.07	$1,040
Jul 2018	341	65.14	2.93	$1,000
Jun 2018	330	60.18	3.08	$1,015
May 2018	310	65.38	2.90	$899
Apr 2018	297	63.84	2.90	$862
Mar 2018	322	61.22	2.79	$897
Feb 2018	300	61.78	2.77	$830
Jan 2018	334	62.87	4.01	$1,339
Dec 2017	322	57.27	2.92	$941
Nov 2017	309	55.42	3.12	$964
Oct 2017	310	49.29	2.98	$925
Sep 2017	318	47.52	3.09	$982
Aug 2017	328	45.37	3.00	$985
Jul 2017	334	43.87	3.09	$1,031
Jun 2017	310	42.49	3.09	$957
May 2017	334	45.37	3.26	$1,090
Apr 2017	326	47.93	3.21	$1,047
Mar 2017	345	46.77	2.98	$1,029
Feb 2017	317	50.45	2.95	$936
Jan 2017	342	49.41	3.42	$1,169
Dec 2016	350	48.76	3.72	$1,303
Nov 2016	334	42.49	2.64	$883
Oct 2016	360	46.19	3.09	$1,112
Sep 2016	345	41.55	3.10	$1,070
Aug 2016	350	41.44	2.92	$1,024
Jul 2016	324	41.62	2.92	$947
Jun 2016	300	45.35	2.69	$806
May 2016	334	42.52	1.99	$665
Apr 2016	298	36.56	1.99	$593
Mar 2016	332	33.01	1.79	$596
Feb 2016	318	26.47	2.06	$656
Jan 2016	352	27.35	2.36	$832
Dec 2015	341	32.36	2.00	$682
Nov 2015	316	38.79	2.17	$685
Oct 2015	346	43.55	2.43	$840
Sep 2015	337	42.99	2.76	$930
Aug 2015	348	40.16	2.87	$1,000
Jul 2015	352	48.15	2.95	$1,037
Jun 2015	342	56.15	2.88	$986
May 2015	343	55.21	2.96	$1,014
Apr 2015	335	49.82	2.71	$907
Mar 2015	348	42.89	2.93	$1,021
Feb 2015	316	44.66	2.98	$940
Jan 2015	351	43.43	3.10	$1,088
Dec 2014	346	54.69	3.59	$1,243
Nov 2014	336	70.46	4.25	$1,429
Oct 2014	349	78.30	3.90	$1,361
Sep 2014	326	86.16	4.05	$1,319
Aug 2014	346	89.39	4.04	$1,396
Jul 2014	351	96.56	4.18	$1,467
Jun 2014	340	98.16	4.74	$1,611
May 2014	335	94.73	4.73	$1,583
Apr 2014	327	95.94	4.81	$1,573
Mar 2014	335	95.89	5.06	$1,694
Feb 2014	304	97.40	6.19	$1,882
Jan 2014	332	90.40	4.86	$1,614
Dec 2013	339	91.82	4.35	$1,476
Nov 2013	355	88.85	3.74	$1,327
Oct 2013	368	97.42	3.78	$1,391
Sep 2013	353	104.11	3.72	$1,312
Aug 2013	378	104.25	3.52	$1,332
Jul 2013	436	102.52	3.72	$1,621
Jun 2013	367	94.40	3.93	$1,444
May 2013	380	94.83	4.15	$1,577
Apr 2013	359	93.96	4.28	$1,537
Mar 2013	362	93.62	3.91	$1,416
Feb 2013	335	91.23	3.42	$1,146
Jan 2013	395	91.60	3.42	$1,351
Dec 2012	383	86.77	3.42	$1,310
Nov 2012	378	86.95	3.62	$1,370
Oct 2012	395	89.38	3.40	$1,343
Sep 2012	387	94.67	2.92	$1,129
Aug 2012	395	92.66	2.91	$1,149
Jul 2012	398	85.13	3.02	$1,202
Jun 2012	391	79.82	2.52	$985
May 2012	403	91.61	2.49	$1,003
Apr 2012	383	101.65	2.00	$765
Mar 2012	405	105.05	2.22	$900
Feb 2012	377	101.10	2.57	$969
Jan 2012	403	98.09	2.73	$1,102
Dec 2011	411	96.87	3.24	$1,332
Nov 2011	395	95.72	3.31	$1,308
Oct 2011	413	84.98	3.65	$1,507
Sep 2011	403	83.62	3.99	$1,606
Aug 2011	420	83.40	4.15	$1,743
Jul 2011	423	94.14	4.52	$1,911
Jun 2011	410	92.90	4.64	$1,902
May 2011	412	98.13	4.40	$1,815
Apr 2011	408	105.96	4.33	$1,768
Mar 2011	435	96.36	4.06	$1,765
Feb 2011	357	85.64	4.18	$1,492
Jan 2011	387	86.50	4.59	$1,776
Dec 2010	389	85.73	4.35	$1,691
Nov 2010	412	80.84	3.80	$1,564
Oct 2010	457	78.10	3.51	$1,604
Sep 2010	448	72.63	3.98	$1,783
Aug 2010	453	73.68	4.42	$2,002
Jul 2010	469	72.55	4.74	$2,221
Jun 2010	462	70.36	4.91	$2,269
May 2010	465	71.12	4.24	$1,969
Apr 2010	440	81.69	4.12	$1,814
Mar 2010	469	78.39	4.39	$2,058
Feb 2010	472	73.58	5.44	$2,569
Jan 2010	484	74.36	5.96	$2,887
Dec 2009	481	71.44	5.48	$2,638
Nov 2009	481	74.59	3.75	$1,804
Oct 2009	499	72.54	4.11	$2,051
Sep 2009	447	65.54	3.06	$1,370
Aug 2009	438	67.42	3.22	$1,410
Jul 2009	459	61.13	3.46	$1,590
Jun 2009	411	66.16	3.90	$1,601
May 2009	472	54.74	3.93	$1,853
Apr 2009	431	46.77	3.59	$1,546
Mar 2009	458	42.14	4.06	$1,859
Feb 2009	404	32.81	4.63	$1,872
Jan 2009	503	35.86	5.37	$2,702
Dec 2008	498	37.10	5.98	$2,977
Nov 2008	483	55.49	6.86	$3,314
Oct 2008	549	75.24	6.92	$3,800
Sep 2008	428	101.76	7.88	$3,371
Aug 2008	501	114.22	8.48	$4,250
Jul 2008	489	131.08	11.39	$5,569
Jun 2008	458	131.33	13.03	$5,969
May 2008	512	123.17	11.57	$5,926
Apr 2008	489	110.31	10.45	$5,112
Mar 2008	528	101.90	9.66	$5,103
Feb 2008	515	92.53	8.77	$4,517
Jan 2008	533	90.38	8.21	$4,374
Dec 2007	534	88.33	7.30	$3,899
Nov 2007	503	91.67	7.29	$3,668
Oct 2007	521	82.85	6.92	$3,606
Sep 2007	539	75.84	6.24	$3,366
Aug 2007	512	69.06	6.39	$3,271
Jul 2007	464	70.90	6.39	$2,964
Jun 2007	464	62.00	7.55	$3,502
May 2007	461	58.74	7.85	$3,617
Apr 2007	437	59.61	7.81	$3,411
Mar 2007	508	56.92	7.30	$3,709
Feb 2007	452	55.10	8.22	$3,714
Jan 2007	507	50.30	6.73	$3,411
Dec 2006	504	56.65	6.92	$3,487
Nov 2006	489	54.20	7.62	$3,725
Oct 2006	488	54.90	6.01	$2,935
Sep 2006	486	60.08	5.04	$2,448
Aug 2006	469	68.71	7.34	$3,442
Jul 2006	483	69.37	6.34	$3,064
Jun 2006	465	66.28	6.38	$2,969
May 2006	501	66.01	6.42	$3,219
Apr 2006	472	64.39	7.36	$3,474
Mar 2006	504	56.70	7.08	$3,570
Feb 2006	456	57.59	7.75	$3,535
Jan 2006	518	60.59	8.93	$4,627
Dec 2005	550	54.94	13.42	$7,378
Nov 2005	538	54.69	10.59	$5,697
Oct 2005	555	58.34	13.80	$7,657
Sep 2005	519	61.45	12.08	$6,269
Aug 2005	560	61.51	9.80	$5,486
Jul 2005	565	55.69	7.84	$4,432
Jun 2005	569	52.33	7.38	$4,200
May 2005	574	45.22	6.65	$3,818
Apr 2005	542	49.20	7.36	$3,989
Mar 2005	504	50.37	7.15	$3,606
Feb 2005	481	45.22	6.31	$3,036
Jan 2005	519	43.16	6.32	$3,281
Dec 2004	560	39.86	6.75	$3,781
Nov 2004	573	45.28	6.33	$3,627
Oct 2004	602	49.70	6.52	$3,922
Sep 2004	579	43.24	5.28	$3,059
Aug 2004	604	42.37	5.55	$3,353
Jul 2004	601	38.28	6.08	$3,657
Jun 2004	599	36.10	6.43	$3,853
May 2004	652	37.48	6.49	$4,234
Apr 2004	583	34.47	5.86	$3,415
Mar 2004	595	34.36	5.53	$3,290
Feb 2004	531	32.45	5.51	$2,926
Jan 2004	558	32.03	6.30	$3,515
Dec 2003	580	30.26	6.30	$3,655
Nov 2003	580	28.80	4.60	$2,665
Oct 2003	603	28.17	4.76	$2,870
Sep 2003	587	26.31	4.75	$2,788
Aug 2003	610	29.76	5.13	$3,129
Jul 2003	592	29.41	5.17	$3,061
Jun 2003	589	28.56	5.98	$3,524
May 2003	615	26.59	5.97	$3,673
Apr 2003	584	26.67	5.41	$3,158
Mar 2003	598	31.14	6.10	$3,645
Feb 2003	491	33.48	7.93	$3,892
Jan 2003	585	30.31	5.58	$3,265
Dec 2002	590	26.91	4.85	$2,864
Nov 2002	608	24.66	4.14	$2,515
Oct 2002	637	26.46	4.23	$2,694
Sep 2002	621	27.44	3.64	$2,257
Aug 2002	658	25.96	3.16	$2,082
Jul 2002	633	24.58	3.06	$1,938
Jun 2002	615	23.73	3.34	$2,053
May 2002	646	24.66	3.58	$2,315
Apr 2002	619	23.65	3.51	$2,174
Mar 2002	618	22.00	3.10	$1,917
Feb 2002	560	18.22	2.38	$1,330
Jan 2002	626	17.17	2.38	$1,487
Dec 2001	629	16.93	2.36	$1,487
Nov 2001	636	18.07	2.41	$1,530
Oct 2001	648	19.78	2.53	$1,639
Sep 2001	643	24.26	2.25	$1,448
Aug 2001	650	24.87	3.05	$1,985
Jul 2001	647	23.93	3.20	$2,069
Jun 2001	894	24.56	3.82	$3,419
May 2001	680	25.52	4.31	$2,929
Apr 2001	690	24.68	5.34	$3,681
Mar 2001	724	24.54	5.38	$3,893
Feb 2001	606	27.75	5.77	$3,495
Jan 2001	688	27.47	8.40	$5,778
Dec 2000	747	26.88	9.12	$6,815
Nov 2000	690	32.21	5.66	$3,904
Oct 2000	695	31.23	5.15	$3,576
Sep 2000	654	31.87	5.19	$3,392
Aug 2000	694	29.64	4.54	$3,151
Jul 2000	626	28.53	4.09	$2,560
Jun 2000	629	29.30	4.40	$2,766
May 2000	647	27.26	3.68	$2,381
Apr 2000	637	24.51	3.12	$1,985
Mar 2000	699	28.42	2.86	$1,999
Feb 2000	647	27.62	2.73	$1,764
Jan 2000	643	25.27	2.48	$1,595
Dec 1999	729	24.28	2.42	$1,767
Nov 1999	685	23.19	2.43	$1,667
Oct 1999	688	20.98	2.80	$1,929
Sep 1999	704	21.75	2.62	$1,844
Aug 1999	731	19.26	2.88	$2,102
Jul 1999	719	17.89	2.37	$1,706
Jun 1999	690	15.94	2.36	$1,630
May 1999	702	15.79	2.32	$1,629
Apr 1999	684	15.10	2.21	$1,510
Mar 1999	695	12.47	1.84	$1,278
Feb 1999	655	9.98	1.82	$1,191
Jan 1999	709	10.38	1.90	$1,347
Dec 1998	747	9.20	1.77	$1,325
Nov 1998	716	10.89	2.19	$1,565
Oct 1998	737	12.42	1.97	$1,451
Sep 1998	701	12.59	2.08	$1,460
Aug 1998	773	11.30	1.91	$1,474
Jul 1998	719	11.74	2.24	$1,609
Jun 1998	743	11.24	2.24	$1,662
May 1998	671	12.62	2.21	$1,480
Apr 1998	626	13.04	2.51	$1,568
Mar 1998	685	12.80	2.31	$1,582
Feb 1998	633	13.95	2.30	$1,455
Jan 1998	742	14.70	2.15	$1,599
Dec 1997	774	16.32	2.41	$1,866
Nov 1997	835	18.19	3.09	$2,579
Oct 1997	346	19.25	3.15	$1,090
Sep 1997	0	17.74	2.95	$0
Aug 1997	1,103	17.86	2.55	$2,818
Jul 1997	697	17.58	2.25	$1,566
Jun 1997	736	17.24	2.26	$1,661
May 1997	802	18.97	2.31	$1,851
Apr 1997	726	17.88	2.08	$1,512
Mar 1997	776	18.95	1.94	$1,505
Feb 1997	700	20.49	2.21	$1,544
Jan 1997	775	23.48	3.54	$2,743
Dec 1996	782	23.32	—	$0
Nov 1996	762	21.97	—	$0
Oct 1996	818	23.31	—	$0
Sep 1996	789	22.22	—	$0
Aug 1996	817	20.26	—	$0
Jul 1996	814	19.55	—	$0
Jun 1996	864	18.73	—	$0
May 1996	1,031	19.43	—	$0
Apr 1996	971	21.51	—	$0
Mar 1996	833	19.38	—	$0
Feb 1996	753	16.98	—	$0
Jan 1996	812	17.07	—	$0
Dec 1995	842	17.19	—	$0
Nov 1995	805	16.00	—	$0
Oct 1995	843	15.43	—	$0
Sep 1995	851	16.18	—	$0
Aug 1995	900	15.92	—	$0
Jul 1995	903	15.24	—	$0
Jun 1995	818	16.41	—	$0
May 1995	919	17.56	—	$0
Apr 1995	879	17.73	—	$0
Mar 1995	897	16.44	—	$0
Feb 1995	782	16.58	—	$0
Jan 1995	849	15.92	—	$0
Dec 1994	876	15.03	—	$0
Nov 1994	866	15.90	—	$0
Oct 1994	911	15.58	—	$0
Sep 1994	902	15.29	—	$0
Aug 1994	981	16.13	—	$0
Jul 1994	1,013	17.56	—	$0
Jun 1994	0	17.09	—	$0
May 1994	1,105	15.88	—	$0
Apr 1994	980	14.14	—	$0
Mar 1994	772	12.46	—	$0
Feb 1994	862	12.50	—	$0
Jan 1994	992	12.66	—	$0
Dec 1993	974	12.33	—	$0
Nov 1993	949	14.49	—	$0
Oct 1993	1,066	15.85	—	$0
Sep 1993	954	15.03	—	$0
Aug 1993	1,064	15.66	—	$0
Jul 1993	1,225	15.46	—	$0
Jun 1993	1,144	16.79	—	$0
May 1993	1,005	17.68	—	$0
Apr 1993	0	18.05	—	$0
Mar 1993	137	18.14	—	$0
Feb 1993	242	17.90	—	$0
Jan 1993	290	16.93	—	$0

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.

May 2026 — as filed, then multipliedworked

Gas                  242 Mcf  × $  3.05 =       $737

────────────────────────────────────────────────────
Month total                                     $737

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. 10/G/23737 is the state's own key, not one this site invented.