EPPENAUER -15-

Name: EPPENAUER -15- lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by XOG OPERATING LLC (P-5 945921) in the BAYVIEW (GLORIETA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 20796District 08Field 06378284Hydrogen sulphide fieldNGPA filingOilCasinghead gasSave Export

Value, all time

$220 k

Jan 1993 – Oct 2023

Value, last 12 filed months

at the published price for each month

Months reported

370

no gaps in the span

Streams

oil, casinghead gas

The BAYVIEW (GLORIETA) 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 20 leases and 40 wells, and the rule below applies to all of them.

Discovered

1961-04-12

as the register files it

Field class

Oil

the register's own label

Between wells

1,320 ft

minimum

From a lease line

660 ft

minimum

A drilling unit in this field needs at least 40 acres.

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
Oil	Disposition	3,962 bbl	$175,147
Casinghead gas	Production	7,815 Mcf	$44,749
Total			$219,896

21 Mcf of this lease's gas, across 21 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 31.2032, -102.4239. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.20317, -102.42386 · 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

3,003 ft

1 wells filed one

Completion to plug

55.4 years

median over 1 well

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 3,003 ft.

Completions filed

Mar 1968

1 of 1 wells

Plug dates filed

Aug 2023

1 of 1 wells

Last completion to plug: a median of 55.4 years across the 1 well that filed both dates, with the middle half between 55.4 years and 55.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-10311130	1	3,003 ft	Mar 1968	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 (370)

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

370 months


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	0	0	81.84	4.54	$0
Dec 2021	0	0	71.32	3.90	$0
Nov 2021	0	0	77.43	5.24	$0
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	0	0	69.49	3.38	$0
May 2021	0	0	63.48	3.02	$0
Apr 2021	0	0	60.36	2.76	$0
Mar 2021	0	0	61.30	2.72	$0
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	0	0	38.77	2.71	$0
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	0	0	38.37	1.83	$0
Jun 2020	0	0	34.90	1.69	$0
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	0	0	55.30	2.75	$0
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	0	0	52.78	2.49	$0
May 2019	0	0	58.48	2.74	$0
Apr 2019	0	0	62.63	2.75	$0
Mar 2019	41	0	56.80	3.06	$2,329
Feb 2019	0	0	50.85	2.79	$0
Jan 2019	0	0	46.03	3.23	$0
Dec 2018	9	0	46.59	4.19	$419
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	0	0	65.38	2.90	$0
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	0	55.42	3.12	$0
Oct 2017	0	0	49.29	2.98	$0
Sep 2017	0	0	47.52	3.09	$0
Aug 2017	0	0	45.37	3.00	$0
Jul 2017	0	0	43.87	3.09	$0
Jun 2017	0	0	42.49	3.09	$0
May 2017	0	0	45.37	3.26	$0
Apr 2017	0	0	47.93	3.21	$0
Mar 2017	0	0	46.77	2.98	$0
Feb 2017	0	0	50.45	2.95	$0
Jan 2017	0	0	49.41	3.42	$0
Dec 2016	0	0	48.76	3.72	$0
Nov 2016	0	0	42.49	2.64	$0
Oct 2016	0	0	46.19	3.09	$0
Sep 2016	0	0	41.55	3.10	$0
Aug 2016	0	0	41.44	2.92	$0
Jul 2016	0	0	41.62	2.92	$0
Jun 2016	0	0	45.35	2.69	$0
May 2016	0	0	42.52	1.99	$0
Apr 2016	0	0	36.56	1.99	$0
Mar 2016	0	0	33.01	1.79	$0
Feb 2016	0	0	26.47	2.06	$0
Jan 2016	0	0	27.35	2.36	$0
Dec 2015	0	0	32.36	2.00	$0
Nov 2015	0	0	38.79	2.17	$0
Oct 2015	0	0	43.55	2.43	$0
Sep 2015	0	0	42.99	2.76	$0
Aug 2015	0	0	40.16	2.87	$0
Jul 2015	0	0	48.15	2.95	$0
Jun 2015	0	0	56.15	2.88	$0
May 2015	44	0	55.21	2.96	$2,429
Apr 2015	0	0	49.82	2.71	$0
Mar 2015	0	0	42.89	2.93	$0
Feb 2015	0	0	44.66	2.98	$0
Jan 2015	0	0	43.43	3.10	$0
Dec 2014	0	0	54.69	3.59	$0
Nov 2014	0	0	70.46	4.25	$0
Oct 2014	0	0	78.30	3.90	$0
Sep 2014	0	0	86.16	4.05	$0
Aug 2014	0	0	89.39	4.04	$0
Jul 2014	0	0	96.56	4.18	$0
Jun 2014	42	0	98.16	4.74	$4,123
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	0	0	97.42	3.78	$0
Sep 2013	0	0	104.11	3.72	$0
Aug 2013	0	0	104.25	3.52	$0
Jul 2013	0	0	102.52	3.72	$0
Jun 2013	0	0	94.40	3.93	$0
May 2013	43	0	94.83	4.15	$4,078
Apr 2013	0	0	93.96	4.28	$0
Mar 2013	0	0	93.62	3.91	$0
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	0	0	86.95	3.62	$0
Oct 2012	0	0	89.38	3.40	$0
Sep 2012	0	0	94.67	2.92	$0
Aug 2012	43	0	92.66	2.91	$3,984
Jul 2012	0	0	85.13	3.02	$0
Jun 2012	0	0	79.82	2.52	$0
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	45	0	101.10	2.57	$4,550
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	0	0	83.62	3.99	$0
Aug 2011	0	0	83.40	4.15	$0
Jul 2011	0	0	94.14	4.52	$0
Jun 2011	0	0	92.90	4.64	$0
May 2011	0	0	98.13	4.40	$0
Apr 2011	45	0	105.96	4.33	$4,768
Mar 2011	0	0	96.36	4.06	$0
Feb 2011	45	0	85.64	4.18	$3,854
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	48	0	85.73	4.35	$4,115
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	44	0	78.10	3.51	$3,436
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	45	0	73.68	4.42	$3,316
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	0	0	70.36	4.91	$0
May 2010	45	0	71.12	4.24	$3,200
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	45	0	78.39	4.39	$3,528
Feb 2010	0	0	73.58	5.44	$0
Jan 2010	0	0	74.36	5.96	$0
Dec 2009	45	0	71.44	5.48	$3,215
Nov 2009	0	0	74.59	3.75	$0
Oct 2009	44	0	72.54	4.11	$3,192
Sep 2009	0	0	65.54	3.06	$0
Aug 2009	21	0	67.42	3.22	$1,416
Jul 2009	0	0	61.13	3.46	$0
Jun 2009	44	0	66.16	3.90	$2,911
May 2009	0	0	54.74	3.93	$0
Apr 2009	45	0	46.77	3.59	$2,105
Mar 2009	0	50	42.14	4.06	$203
Feb 2009	45	110	32.81	4.63	$1,986
Jan 2009	0	95	35.86	5.37	$510
Dec 2008	0	76	37.10	5.98	$454
Nov 2008	46	67	55.49	6.86	$3,012
Oct 2008	0	121	75.24	6.92	$838
Sep 2008	45	98	101.76	7.88	$5,351
Aug 2008	44	136	114.22	8.48	$6,179
Jul 2008	44	147	131.08	11.39	$7,442
Jun 2008	18	99	131.33	13.03	$3,654
May 2008	44	138	123.17	11.57	$7,017
Apr 2008	18	137	110.31	10.45	$3,418
Mar 2008	20	103	101.90	9.66	$3,033
Feb 2008	23	143	92.53	8.77	$3,382
Jan 2008	33	139	90.38	8.21	$4,123
Dec 2007	18	152	88.33	7.30	$2,700
Nov 2007	44	153	91.67	7.29	$5,149
Oct 2007	44	157	82.85	6.92	$4,732
Sep 2007	71	185	75.84	6.24	$6,540
Aug 2007	85	153	69.06	6.39	$6,847
Jul 2007	0	181	70.90	6.39	$1,156
Jun 2007	0	148	62.00	7.55	$1,117
May 2007	0	70	58.74	7.85	$549
Apr 2007	0	24	59.61	7.81	$187
Mar 2007	0	31	56.92	7.30	$226
Feb 2007	0	35	55.10	8.22	$288
Jan 2007	0	43	50.30	6.73	$289
Dec 2006	0	41	56.65	6.92	$284
Nov 2006	41	29	54.20	7.62	$2,443
Oct 2006	0	69	54.90	6.01	$415
Sep 2006	0	86	60.08	5.04	$433
Aug 2006	0	54	68.71	7.34	$396
Jul 2006	0	78	69.37	6.34	$495
Jun 2006	0	56	66.28	6.38	$358
May 2006	0	62	66.01	6.42	$398
Apr 2006	0	81	64.39	7.36	$596
Mar 2006	0	78	56.70	7.08	$552
Feb 2006	20	73	57.59	7.75	$1,718
Jan 2006	0	97	60.59	8.93	$867
Dec 2005	0	68	54.94	13.42	$912
Nov 2005	16	70	54.69	10.59	$1,616
Oct 2005	22	61	58.34	13.80	$2,125
Sep 2005	11	0	61.45	12.08	$676
Aug 2005	0	0	61.51	9.80	$0
Jul 2005	0	0	55.69	7.84	$0
Jun 2005	0	0	52.33	7.38	$0
May 2005	10	0	45.22	6.65	$452
Apr 2005	0	0	49.20	7.36	$0
Mar 2005	20	0	50.37	7.15	$1,007
Feb 2005	0	0	45.22	6.31	$0
Jan 2005	50	0	43.16	6.32	$2,158
Dec 2004	0	0	39.86	6.75	$0
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	0	0	43.24	5.28	$0
Aug 2004	0	0	42.37	5.55	$0
Jul 2004	61	0	38.28	6.08	$2,335
Jun 2004	0	0	36.10	6.43	$0
May 2004	0	0	37.48	6.49	$0
Apr 2004	0	0	34.47	5.86	$0
Mar 2004	0	0	34.36	5.53	$0
Feb 2004	0	0	32.45	5.51	$0
Jan 2004	0	0	32.03	6.30	$0
Dec 2003	0	0	30.26	6.30	$0
Nov 2003	0	0	28.80	4.60	$0
Oct 2003	0	0	28.17	4.76	$0
Sep 2003	0	0	26.31	4.75	$0
Aug 2003	0	0	29.76	5.13	$0
Jul 2003	0	0	29.41	5.17	$0
Jun 2003	0	0	28.56	5.98	$0
May 2003	40	0	26.59	5.97	$1,064
Apr 2003	0	0	26.67	5.41	$0
Mar 2003	45	107	31.14	6.10	$2,054
Feb 2003	0	95	33.48	7.93	$753
Jan 2003	0	110	30.31	5.58	$614
Dec 2002	46	114	26.91	4.85	$1,791
Nov 2002	0	106	24.66	4.14	$439
Oct 2002	25	151	26.46	4.23	$1,300
Sep 2002	0	146	27.44	3.64	$531
Aug 2002	46	102	25.96	3.16	$1,517
Jul 2002	0	273	24.58	3.06	$836
Jun 2002	43	134	23.73	3.34	$1,468
May 2002	41	135	24.66	3.58	$1,495
Apr 2002	0	172	23.65	3.51	$604
Mar 2002	46	172	22.00	3.10	$1,546
Feb 2002	36	153	18.22	2.38	$1,019
Jan 2002	49	170	17.17	2.38	$1,245
Dec 2001	0	185	16.93	2.36	$437
Nov 2001	48	196	18.07	2.41	$1,339
Oct 2001	50	236	19.78	2.53	$1,586
Sep 2001	36	168	24.26	2.25	$1,252
Aug 2001	0	238	24.87	3.05	$727
Jul 2001	50	259	23.93	3.20	$2,025
Jun 2001	50	229	24.56	3.82	$2,104
May 2001	0	149	25.52	4.31	$642
Apr 2001	32	0	24.68	5.34	$790
Mar 2001	0	0	24.54	5.38	$0
Feb 2001	23	0	27.75	5.77	$638
Jan 2001	29	0	27.47	8.40	$797
Dec 2000	0	0	26.88	9.12	$0
Nov 2000	0	0	32.21	5.66	$0
Oct 2000	33	0	31.23	5.15	$1,031
Sep 2000	25	0	31.87	5.19	$797
Aug 2000	0	0	29.64	4.54	$0
Jul 2000	24	0	28.53	4.09	$685
Jun 2000	0	0	29.30	4.40	$0
May 2000	0	0	27.26	3.68	$0
Apr 2000	0	0	24.51	3.12	$0
Mar 2000	0	0	28.42	2.86	$0
Feb 2000	27	0	27.62	2.73	$746
Jan 2000	0	0	25.27	2.48	$0
Dec 1999	0	0	24.28	2.42	$0
Nov 1999	0	0	23.19	2.43	$0
Oct 1999	24	0	20.98	2.80	$504
Sep 1999	0	0	21.75	2.62	$0
Aug 1999	0	0	19.26	2.88	$0
Jul 1999	27	0	17.89	2.37	$483
Jun 1999	0	0	15.94	2.36	$0
May 1999	0	0	15.79	2.32	$0
Apr 1999	24	0	15.10	2.21	$362
Mar 1999	0	0	12.47	1.84	$0
Feb 1999	0	0	9.98	1.82	$0
Jan 1999	31	0	10.38	1.90	$322
Dec 1998	4	0	9.20	1.77	$37
Nov 1998	0	0	10.89	2.19	$0
Oct 1998	0	0	12.42	1.97	$0
Sep 1998	15	0	12.59	2.08	$189
Aug 1998	0	0	11.30	1.91	$0
Jul 1998	21	0	11.74	2.24	$247
Jun 1998	0	0	11.24	2.24	$0
May 1998	28	0	12.62	2.21	$353
Apr 1998	7	0	13.04	2.51	$91
Mar 1998	14	0	12.80	2.31	$179
Feb 1998	0	0	13.95	2.30	$0
Jan 1998	15	0	14.70	2.15	$221
Dec 1997	0	0	16.32	2.41	$0
Nov 1997	16	0	18.19	3.09	$291
Oct 1997	0	0	19.25	3.15	$0
Sep 1997	35	0	17.74	2.95	$621
Aug 1997	30	0	17.86	2.55	$536
Jul 1997	9	0	17.58	2.25	$158
Jun 1997	8	0	17.24	2.26	$138
May 1997	0	0	18.97	2.31	$0
Apr 1997	12	0	17.88	2.08	$215
Mar 1997	11	0	18.95	1.94	$208
Feb 1997	0	0	20.49	2.21	$0
Jan 1997	10	0	23.48	3.54	$235
Dec 1996	27	0	23.32	—	$630
Nov 1996	0	0	21.97	—	$0
Oct 1996	15	0	23.31	—	$350
Sep 1996	48	0	22.22	—	$1,067
Aug 1996	112	0	20.26	—	$2,269
Jul 1996	40	0	19.55	—	$782
Jun 1996	0	0	18.73	—	$0
May 1996	31	0	19.43	—	$602
Apr 1996	16	0	21.51	—	$344
Mar 1996	33	0	19.38	—	$640
Feb 1996	44	0	16.98	—	$747
Jan 1996	40	0	17.07	—	$683
Dec 1995	31	0	17.19	—	$533
Nov 1995	0	0	16.00	—	$0
Oct 1995	0	0	15.43	—	$0
Sep 1995	159	0	16.18	—	$2,573
Aug 1995	0	0	15.92	—	$0
Jul 1995	0	0	15.24	—	$0
Jun 1995	0	0	16.41	—	$0
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	0	0	15.03	—	$0
Nov 1994	175	0	15.90	—	$2,783
Oct 1994	0	0	15.58	—	$0
Sep 1994	0	1	15.29	—	$0
Aug 1994	0	1	16.13	—	$0
Jul 1994	0	1	17.56	—	$0
Jun 1994	0	1	17.09	—	$0
May 1994	0	1	15.88	—	$0
Apr 1994	0	1	14.14	—	$0
Mar 1994	0	1	12.46	—	$0
Feb 1994	0	1	12.50	—	$0
Jan 1994	168	1	12.66	—	$2,127
Dec 1993	0	1	12.33	—	$0
Nov 1993	0	1	14.49	—	$0
Oct 1993	0	1	15.85	—	$0
Sep 1993	0	1	15.03	—	$0
Aug 1993	0	1	15.66	—	$0
Jul 1993	0	1	15.46	—	$0
Jun 1993	0	1	16.79	—	$0
May 1993	0	1	17.68	—	$0
Apr 1993	162	1	18.05	—	$2,924
Mar 1993	0	1	18.14	—	$0
Feb 1993	0	1	17.90	—	$0
Jan 1993	0	1	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.

Mar 2019 — as filed, then multipliedworked

Oil                   41 bbl  × $ 56.80 =     $2,329
Casinghead gas         0 Mcf  × $  3.06 =         $0

────────────────────────────────────────────────────
Month total                                   $2,329

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. 08/O/20796 is the state's own key, not one this site invented.