UNDERWOOD, R.

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

Operated by FELDERHOFF PRODUCTION COMPANY (P-5 265140) in the UNDERWOOD field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2436District 09Field 92422001OilCasinghead gasSave Export

Value, all time

$1.5 M

Jan 1993 – Jan 2024

Value, last 12 filed months

at the published price for each month

Months reported

373

no gaps in the span

Streams

oil, casinghead gas

The UNDERWOOD 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 3 leases and 4 wells, and the rule below applies to all of them.

Discovered

1951-12-21

as the register files it

Field class

Oil

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 20 acres.

The Commission's schedule remark for this field reads: “DOCKET ASSIGNED SPACING ONLY--DENSITY FROM SWR-38”

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	37,146 bbl	$1,463,508
Casinghead gas	Production	18 Mcf	$0
Total			$1,463,508

18 Mcf of this lease's gas, across 18 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 33.6098, -96.9559. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.60984, -96.95589 · 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%

1 of 1 wells

With a plug date

100.0%

1 of 1 wells

Median depth

4,001 ft

1 wells filed one

Completion to plug

—

no well filed both dates

What the state filed about each well

On the RRC proration schedule

1100.0%

A plug date is filed

1100.0%

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

1100.0%

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

The one well that filed a depth was drilled to 4,001 ft.

Plug dates filed

Aug 2023

1 of 1 wells

1 well


42-09700848	1	4,001 ft	—	Aug 2023	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 (373)

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

373 months


Jan 2024	0	0	73.02	3.30	$0
Dec 2023	0	0	71.26	2.61	$0
Nov 2023	0	0	77.89	2.81	$0
Oct 2023	0	0	85.44	3.09	$0
Sep 2023	0	0	89.04	2.74	$0
Aug 2023	0	0	80.52	2.67	$0
Jul 2023	0	0	74.85	2.64	$0
Jun 2023	0	0	68.96	2.26	$0
May 2023	0	0	70.62	2.23	$0
Apr 2023	0	0	78.12	2.24	$0
Mar 2023	0	0	72.85	2.39	$0
Feb 2023	0	0	75.11	2.47	$0
Jan 2023	0	0	76.53	3.39	$0
Dec 2022	0	0	76.41	5.73	$0
Nov 2022	0	0	85.00	5.65	$0
Oct 2022	0	0	87.18	5.86	$0
Sep 2022	0	0	84.88	8.16	$0
Aug 2022	0	0	94.52	9.13	$0
Jul 2022	0	0	101.58	7.54	$0
Jun 2022	0	0	115.09	7.98	$0
May 2022	0	0	109.37	8.43	$0
Apr 2022	0	0	104.22	6.84	$0
Mar 2022	0	0	108.88	5.08	$0
Feb 2022	0	0	91.05	4.86	$0
Jan 2022	152	0	81.84	4.54	$12,440
Dec 2021	0	0	71.32	3.90	$0
Nov 2021	158	0	77.43	5.24	$12,234
Oct 2021	0	0	79.79	5.71	$0
Sep 2021	0	0	69.86	5.35	$0
Aug 2021	0	0	66.02	4.22	$0
Jul 2021	0	0	70.78	3.98	$0
Jun 2021	150	0	69.49	3.38	$10,424
May 2021	0	0	63.48	3.02	$0
Apr 2021	0	0	60.36	2.76	$0
Mar 2021	156	0	61.30	2.72	$9,563
Feb 2021	0	0	57.80	5.55	$0
Jan 2021	0	0	50.41	2.81	$0
Dec 2020	0	0	44.64	2.68	$0
Nov 2020	155	0	38.77	2.71	$6,009
Oct 2020	0	0	36.97	2.48	$0
Sep 2020	0	0	37.09	1.99	$0
Aug 2020	0	0	39.98	2.39	$0
Jul 2020	148	0	38.37	1.83	$5,679
Jun 2020	155	0	34.90	1.69	$5,410
May 2020	0	0	16.92	1.81	$0
Apr 2020	0	0	14.75	1.80	$0
Mar 2020	0	0	30.34	1.86	$0
Feb 2020	0	0	49.88	1.98	$0
Jan 2020	0	0	57.25	2.09	$0
Dec 2019	0	0	59.01	2.30	$0
Nov 2019	306	0	55.30	2.75	$16,922
Oct 2019	0	0	53.47	2.42	$0
Sep 2019	0	0	55.05	2.66	$0
Aug 2019	0	0	53.11	2.30	$0
Jul 2019	0	0	56.27	2.46	$0
Jun 2019	155	0	52.78	2.49	$8,181
May 2019	0	0	58.48	2.74	$0
Apr 2019	0	0	62.63	2.75	$0
Mar 2019	0	0	56.80	3.06	$0
Feb 2019	155	0	50.85	2.79	$7,882
Jan 2019	0	0	46.03	3.23	$0
Dec 2018	165	0	46.59	4.19	$7,687
Nov 2018	161	0	52.93	4.24	$8,522
Oct 2018	0	0	61.44	3.40	$0
Sep 2018	0	0	59.54	3.11	$0
Aug 2018	158	0	59.40	3.07	$9,385
Jul 2018	0	0	65.14	2.93	$0
Jun 2018	151	0	60.18	3.08	$9,087
May 2018	0	0	65.38	2.90	$0
Apr 2018	0	0	63.84	2.90	$0
Mar 2018	171	0	61.22	2.79	$10,469
Feb 2018	0	0	61.78	2.77	$0
Jan 2018	152	0	62.87	4.01	$9,556
Dec 2017	163	0	57.27	2.92	$9,335
Nov 2017	0	0	55.42	3.12	$0
Oct 2017	162	0	49.29	2.98	$7,985
Sep 2017	0	0	47.52	3.09	$0
Aug 2017	161	0	45.37	3.00	$7,305
Jul 2017	0	0	43.87	3.09	$0
Jun 2017	0	0	42.49	3.09	$0
May 2017	153	0	45.37	3.26	$6,942
Apr 2017	0	0	47.93	3.21	$0
Mar 2017	163	0	46.77	2.98	$7,624
Feb 2017	0	0	50.45	2.95	$0
Jan 2017	165	0	49.41	3.42	$8,153
Dec 2016	167	0	48.76	3.72	$8,143
Nov 2016	161	0	42.49	2.64	$6,841
Oct 2016	0	0	46.19	3.09	$0
Sep 2016	169	0	41.55	3.10	$7,022
Aug 2016	0	0	41.44	2.92	$0
Jul 2016	159	0	41.62	2.92	$6,618
Jun 2016	0	0	45.35	2.69	$0
May 2016	157	0	42.52	1.99	$6,676
Apr 2016	162	0	36.56	1.99	$5,923
Mar 2016	160	0	33.01	1.79	$5,282
Feb 2016	159	0	26.47	2.06	$4,209
Jan 2016	0	0	27.35	2.36	$0
Dec 2015	173	0	32.36	2.00	$5,598
Nov 2015	0	0	38.79	2.17	$0
Oct 2015	157	0	43.55	2.43	$6,837
Sep 2015	0	0	42.99	2.76	$0
Aug 2015	330	0	40.16	2.87	$13,253
Jul 2015	0	0	48.15	2.95	$0
Jun 2015	162	0	56.15	2.88	$9,096
May 2015	0	0	55.21	2.96	$0
Apr 2015	156	0	49.82	2.71	$7,772
Mar 2015	156	0	42.89	2.93	$6,691
Feb 2015	0	0	44.66	2.98	$0
Jan 2015	160	0	43.43	3.10	$6,949
Dec 2014	155	0	54.69	3.59	$8,477
Nov 2014	0	0	70.46	4.25	$0
Oct 2014	161	0	78.30	3.90	$12,606
Sep 2014	151	0	86.16	4.05	$13,010
Aug 2014	155	0	89.39	4.04	$13,855
Jul 2014	153	0	96.56	4.18	$14,774
Jun 2014	154	0	98.16	4.74	$15,117
May 2014	0	0	94.73	4.73	$0
Apr 2014	0	0	95.94	4.81	$0
Mar 2014	0	0	95.89	5.06	$0
Feb 2014	0	0	97.40	6.19	$0
Jan 2014	0	0	90.40	4.86	$0
Dec 2013	0	0	91.82	4.35	$0
Nov 2013	0	0	88.85	3.74	$0
Oct 2013	151	0	97.42	3.78	$14,710
Sep 2013	0	0	104.11	3.72	$0
Aug 2013	161	0	104.25	3.52	$16,784
Jul 2013	0	0	102.52	3.72	$0
Jun 2013	153	0	94.40	3.93	$14,443
May 2013	0	0	94.83	4.15	$0
Apr 2013	0	0	93.96	4.28	$0
Mar 2013	153	0	93.62	3.91	$14,324
Feb 2013	0	0	91.23	3.42	$0
Jan 2013	0	0	91.60	3.42	$0
Dec 2012	0	0	86.77	3.42	$0
Nov 2012	155	0	86.95	3.62	$13,477
Oct 2012	0	0	89.38	3.40	$0
Sep 2012	0	0	94.67	2.92	$0
Aug 2012	0	0	92.66	2.91	$0
Jul 2012	0	0	85.13	3.02	$0
Jun 2012	160	0	79.82	2.52	$12,771
May 2012	0	0	91.61	2.49	$0
Apr 2012	0	0	101.65	2.00	$0
Mar 2012	0	0	105.05	2.22	$0
Feb 2012	156	0	101.10	2.57	$15,772
Jan 2012	0	0	98.09	2.73	$0
Dec 2011	0	0	96.87	3.24	$0
Nov 2011	0	0	95.72	3.31	$0
Oct 2011	0	0	84.98	3.65	$0
Sep 2011	156	0	83.62	3.99	$13,045
Aug 2011	0	0	83.40	4.15	$0
Jul 2011	148	0	94.14	4.52	$13,933
Jun 2011	0	0	92.90	4.64	$0
May 2011	156	0	98.13	4.40	$15,308
Apr 2011	0	0	105.96	4.33	$0
Mar 2011	0	0	96.36	4.06	$0
Feb 2011	154	0	85.64	4.18	$13,189
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	0	0	85.73	4.35	$0
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	0	0	78.10	3.51	$0
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	156	0	73.68	4.42	$11,494
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	152	0	70.36	4.91	$10,695
May 2010	158	0	71.12	4.24	$11,237
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	152	0	73.58	5.44	$11,184
Jan 2010	155	0	74.36	5.96	$11,526
Dec 2009	0	0	71.44	5.48	$0
Nov 2009	159	0	74.59	3.75	$11,860
Oct 2009	158	0	72.54	4.11	$11,461
Sep 2009	0	0	65.54	3.06	$0
Aug 2009	157	0	67.42	3.22	$10,585
Jul 2009	156	0	61.13	3.46	$9,536
Jun 2009	0	0	66.16	3.90	$0
May 2009	0	0	54.74	3.93	$0
Apr 2009	161	0	46.77	3.59	$7,530
Mar 2009	167	0	42.14	4.06	$7,037
Feb 2009	0	0	32.81	4.63	$0
Jan 2009	0	0	35.86	5.37	$0
Dec 2008	0	0	37.10	5.98	$0
Nov 2008	0	0	55.49	6.86	$0
Oct 2008	168	0	75.24	6.92	$12,640
Sep 2008	0	0	101.76	7.88	$0
Aug 2008	159	0	114.22	8.48	$18,161
Jul 2008	162	0	131.08	11.39	$21,235
Jun 2008	0	0	131.33	13.03	$0
May 2008	164	0	123.17	11.57	$20,200
Apr 2008	0	0	110.31	10.45	$0
Mar 2008	175	0	101.90	9.66	$17,833
Feb 2008	159	0	92.53	8.77	$14,712
Jan 2008	164	0	90.38	8.21	$14,822
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	161	0	91.67	7.29	$14,759
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	169	0	75.84	6.24	$12,817
Aug 2007	174	0	69.06	6.39	$12,016
Jul 2007	156	0	70.90	6.39	$11,060
Jun 2007	0	0	62.00	7.55	$0
May 2007	149	0	58.74	7.85	$8,752
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	0	56.92	7.30	$0
Feb 2007	168	0	55.10	8.22	$9,257
Jan 2007	0	0	50.30	6.73	$0
Dec 2006	159	0	56.65	6.92	$9,007
Nov 2006	159	0	54.20	7.62	$8,618
Oct 2006	158	0	54.90	6.01	$8,674
Sep 2006	0	0	60.08	5.04	$0
Aug 2006	161	0	68.71	7.34	$11,062
Jul 2006	161	0	69.37	6.34	$11,169
Jun 2006	0	0	66.28	6.38	$0
May 2006	170	0	66.01	6.42	$11,222
Apr 2006	358	0	64.39	7.36	$23,052
Mar 2006	0	0	56.70	7.08	$0
Feb 2006	0	0	57.59	7.75	$0
Jan 2006	185	0	60.59	8.93	$11,209
Dec 2005	173	0	54.94	13.42	$9,505
Nov 2005	0	0	54.69	10.59	$0
Oct 2005	185	0	58.34	13.80	$10,793
Sep 2005	0	0	61.45	12.08	$0
Aug 2005	0	0	61.51	9.80	$0
Jul 2005	187	0	55.69	7.84	$10,414
Jun 2005	183	0	52.33	7.38	$9,576
May 2005	0	0	45.22	6.65	$0
Apr 2005	184	0	49.20	7.36	$9,053
Mar 2005	183	0	50.37	7.15	$9,218
Feb 2005	0	0	45.22	6.31	$0
Jan 2005	183	0	43.16	6.32	$7,898
Dec 2004	0	0	39.86	6.75	$0
Nov 2004	175	0	45.28	6.33	$7,924
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	0	0	43.24	5.28	$0
Aug 2004	184	0	42.37	5.55	$7,796
Jul 2004	0	0	38.28	6.08	$0
Jun 2004	182	0	36.10	6.43	$6,570
May 2004	183	0	37.48	6.49	$6,859
Apr 2004	0	0	34.47	5.86	$0
Mar 2004	183	0	34.36	5.53	$6,288
Feb 2004	189	0	32.45	5.51	$6,133
Jan 2004	185	0	32.03	6.30	$5,926
Dec 2003	185	0	30.26	6.30	$5,598
Nov 2003	0	0	28.80	4.60	$0
Oct 2003	186	0	28.17	4.76	$5,240
Sep 2003	182	0	26.31	4.75	$4,788
Aug 2003	185	0	29.76	5.13	$5,506
Jul 2003	0	0	29.41	5.17	$0
Jun 2003	171	0	28.56	5.98	$4,884
May 2003	0	0	26.59	5.97	$0
Apr 2003	175	0	26.67	5.41	$4,667
Mar 2003	179	0	31.14	6.10	$5,574
Feb 2003	178	0	33.48	7.93	$5,959
Jan 2003	0	0	30.31	5.58	$0
Dec 2002	0	0	26.91	4.85	$0
Nov 2002	173	0	24.66	4.14	$4,266
Oct 2002	181	0	26.46	4.23	$4,789
Sep 2002	177	0	27.44	3.64	$4,857
Aug 2002	181	0	25.96	3.16	$4,699
Jul 2002	0	0	24.58	3.06	$0
Jun 2002	170	0	23.73	3.34	$4,034
May 2002	185	0	24.66	3.58	$4,562
Apr 2002	182	0	23.65	3.51	$4,304
Mar 2002	182	0	22.00	3.10	$4,004
Feb 2002	0	0	18.22	2.38	$0
Jan 2002	172	0	17.17	2.38	$2,953
Dec 2001	183	0	16.93	2.36	$3,098
Nov 2001	0	0	18.07	2.41	$0
Oct 2001	174	0	19.78	2.53	$3,442
Sep 2001	171	0	24.26	2.25	$4,148
Aug 2001	185	0	24.87	3.05	$4,601
Jul 2001	160	0	23.93	3.20	$3,829
Jun 2001	177	0	24.56	3.82	$4,347
May 2001	183	0	25.52	4.31	$4,670
Apr 2001	183	0	24.68	5.34	$4,516
Mar 2001	364	0	24.54	5.38	$8,933
Feb 2001	0	0	27.75	5.77	$0
Jan 2001	346	0	27.47	8.40	$9,505
Dec 2000	0	0	26.88	9.12	$0
Nov 2000	184	0	32.21	5.66	$5,927
Oct 2000	183	0	31.23	5.15	$5,715
Sep 2000	187	0	31.87	5.19	$5,960
Aug 2000	183	0	29.64	4.54	$5,424
Jul 2000	367	0	28.53	4.09	$10,471
Jun 2000	183	0	29.30	4.40	$5,362
May 2000	185	0	27.26	3.68	$5,043
Apr 2000	179	0	24.51	3.12	$4,387
Mar 2000	338	0	28.42	2.86	$9,606
Feb 2000	0	0	27.62	2.73	$0
Jan 2000	183	0	25.27	2.48	$4,624
Dec 1999	188	0	24.28	2.42	$4,565
Nov 1999	348	0	23.19	2.43	$8,070
Oct 1999	0	0	20.98	2.80	$0
Sep 1999	182	0	21.75	2.62	$3,959
Aug 1999	173	0	19.26	2.88	$3,332
Jul 1999	362	0	17.89	2.37	$6,476
Jun 1999	0	0	15.94	2.36	$0
May 1999	186	0	15.79	2.32	$2,937
Apr 1999	187	0	15.10	2.21	$2,824
Mar 1999	187	0	12.47	1.84	$2,332
Feb 1999	175	0	9.98	1.82	$1,747
Jan 1999	182	0	10.38	1.90	$1,889
Dec 1998	345	0	9.20	1.77	$3,174
Nov 1998	186	0	10.89	2.19	$2,026
Oct 1998	177	0	12.42	1.97	$2,198
Sep 1998	185	0	12.59	2.08	$2,329
Aug 1998	143	0	11.30	1.91	$1,616
Jul 1998	301	0	11.74	2.24	$3,534
Jun 1998	163	0	11.24	2.24	$1,832
May 1998	183	0	12.62	2.21	$2,309
Apr 1998	0	0	13.04	2.51	$0
Mar 1998	370	0	12.80	2.31	$4,736
Feb 1998	189	0	13.95	2.30	$2,637
Jan 1998	0	0	14.70	2.15	$0
Dec 1997	187	0	16.32	2.41	$3,052
Nov 1997	191	0	18.19	3.09	$3,474
Oct 1997	185	0	19.25	3.15	$3,561
Sep 1997	186	0	17.74	2.95	$3,300
Aug 1997	185	0	17.86	2.55	$3,304
Jul 1997	352	0	17.58	2.25	$6,188
Jun 1997	181	0	17.24	2.26	$3,120
May 1997	188	0	18.97	2.31	$3,566
Apr 1997	185	0	17.88	2.08	$3,308
Mar 1997	369	0	18.95	1.94	$6,993
Feb 1997	184	0	20.49	2.21	$3,770
Jan 1997	189	0	23.48	3.54	$4,438
Dec 1996	186	0	23.32	—	$4,338
Nov 1996	189	0	21.97	—	$4,152
Oct 1996	365	0	23.31	—	$8,508
Sep 1996	183	0	22.22	—	$4,066
Aug 1996	186	0	20.26	—	$3,768
Jul 1996	188	0	19.55	—	$3,675
Jun 1996	0	0	18.73	—	$0
May 1996	376	0	19.43	—	$7,306
Apr 1996	190	0	21.51	—	$4,087
Mar 1996	190	0	19.38	—	$3,682
Feb 1996	190	0	16.98	—	$3,226
Jan 1996	192	0	17.07	—	$3,277
Dec 1995	180	0	17.19	—	$3,094
Nov 1995	362	0	16.00	—	$5,792
Oct 1995	0	0	15.43	—	$0
Sep 1995	188	0	16.18	—	$3,042
Aug 1995	180	0	15.92	—	$2,866
Jul 1995	185	0	15.24	—	$2,819
Jun 1995	187	0	16.41	—	$3,069
May 1995	0	0	17.56	—	$0
Apr 1995	0	0	17.73	—	$0
Mar 1995	0	0	16.44	—	$0
Feb 1995	0	0	16.58	—	$0
Jan 1995	0	0	15.92	—	$0
Dec 1994	366	0	15.03	—	$5,501
Nov 1994	160	0	15.90	—	$2,544
Oct 1994	0	0	15.58	—	$0
Sep 1994	0	1	15.29	—	$0
Aug 1994	170	1	16.13	—	$2,742
Jul 1994	182	1	17.56	—	$3,196
Jun 1994	171	1	17.09	—	$2,922
May 1994	185	1	15.88	—	$2,938
Apr 1994	0	1	14.14	—	$0
Mar 1994	184	1	12.46	—	$2,293
Feb 1994	186	1	12.50	—	$2,325
Jan 1994	0	1	12.66	—	$0
Dec 1993	0	0	12.33	—	$0
Nov 1993	0	0	14.49	—	$0
Oct 1993	184	1	15.85	—	$2,916
Sep 1993	0	1	15.03	—	$0
Aug 1993	177	1	15.66	—	$2,772
Jul 1993	181	1	15.46	—	$2,798
Jun 1993	0	1	16.79	—	$0
May 1993	183	1	17.68	—	$3,235
Apr 1993	0	1	18.05	—	$0
Mar 1993	0	1	18.14	—	$0
Feb 1993	0	1	17.90	—	$0
Jan 1993	0	0	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.

Jan 2022 — as filed, then multipliedworked

Oil                  152 bbl  × $ 81.84 =    $12,440
Casinghead gas         0 Mcf  × $  4.54 =         $0

────────────────────────────────────────────────────
Month total                                  $12,440

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. 09/O/2436 is the state's own key, not one this site invented.