SHELTON "A"

Name: SHELTON "A" lease production and value, Aug 1998 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by BURK ROYALTY CO., LTD. (P-5 108799) in the PANHANDLE, WEST (RED CAVE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 171765District 10Field 68831200Hydrogen sulphide fieldCondensateGasSave Export

Value, all time

$2.8 M

Aug 1998 – May 2026

Value, last 12 filed months

$36 k

at the published price for each month

Months reported

334

no gaps in the span

Streams

condensate, gas

The PANHANDLE, WEST (RED CAVE) 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 666 leases and 666 wells, and the rule below applies to all of them.

Discovered

1960-07-15

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 2019-11-19.

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.

The Commission's schedule remark for this field reads: “THE LOCATION OF PERFORATIONS.”

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
Condensate	Disposition	216 bbl	$15,046
Gas	Production	630,057 Mcf	$2,739,916
Total			$2,754,962

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 35.6684, -101.6687. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.66842, -101.66867 · 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

1,890 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

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.

How deep they were drilled

The one well that filed a depth was drilled to 1,890 ft.

Completions filed

Aug 1998

1 of 1 wells

1 well


42-34132582	18R	1,890 ft	Aug 1998	—	—

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 (334)

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

334 months


May 2026	0	0	106.41	3.05	$0
Apr 2026	0	843	98.93	2.87	$2,419
Mar 2026	0	874	89.75	3.15	$2,753
Feb 2026	0	853	63.50	3.75	$3,199
Jan 2026	0	832	59.13	8.00	$6,654
Dec 2025	0	870	56.66	4.41	$3,840
Nov 2025	0	864	58.59	3.93	$3,392
Oct 2025	0	999	59.38	3.30	$3,302
Sep 2025	0	853	62.74	3.08	$2,625
Aug 2025	0	896	63.93	3.01	$2,701
Jul 2025	0	883	66.74	3.32	$2,927
Jun 2025	0	766	66.48	3.13	$2,397
May 2025	0	781	60.55	3.23	$2,524
Apr 2025	0	784	62.36	3.54	$2,778
Mar 2025	0	828	67.70	4.27	$3,534
Feb 2025	0	733	70.88	4.34	$3,182
Jan 2025	0	701	74.32	4.28	$2,999
Dec 2024	0	722	68.99	3.12	$2,254
Nov 2024	0	704	69.05	2.20	$1,548
Oct 2024	0	719	71.37	2.28	$1,640
Sep 2024	0	844	69.61	2.36	$1,996
Aug 2024	0	912	75.63	2.06	$1,882
Jul 2024	0	944	79.93	2.15	$2,026
Jun 2024	0	933	78.08	2.63	$2,458
May 2024	0	956	78.81	2.20	$2,102
Apr 2024	0	0	84.45	1.66	$0
Mar 2024	0	874	80.30	1.55	$1,350
Feb 2024	0	818	76.09	1.78	$1,459
Jan 2024	0	966	73.02	3.30	$3,186
Dec 2023	0	886	71.26	2.61	$2,313
Nov 2023	0	875	77.89	2.81	$2,457
Oct 2023	0	919	85.44	3.09	$2,837
Sep 2023	0	913	89.04	2.74	$2,497
Aug 2023	0	994	80.52	2.67	$2,657
Jul 2023	0	1,143	74.85	2.64	$3,020
Jun 2023	0	903	68.96	2.26	$2,039
May 2023	0	818	70.62	2.23	$1,822
Apr 2023	0	872	78.12	2.24	$1,951
Mar 2023	0	897	72.85	2.39	$2,147
Feb 2023	0	828	75.11	2.47	$2,042
Jan 2023	0	927	76.53	3.39	$3,140
Dec 2022	0	951	76.41	5.73	$5,448
Nov 2022	0	928	85.00	5.65	$5,240
Oct 2022	0	1,035	87.18	5.86	$6,069
Sep 2022	0	1,070	84.88	8.16	$8,735
Aug 2022	0	946	94.52	9.13	$8,634
Jul 2022	0	1,074	101.58	7.54	$8,100
Jun 2022	0	992	115.09	7.98	$7,913
May 2022	0	940	109.37	8.43	$7,927
Apr 2022	0	990	104.22	6.84	$6,769
Mar 2022	0	1,007	108.88	5.08	$5,112
Feb 2022	0	0	91.05	4.86	$0
Jan 2022	0	0	81.84	4.54	$0
Dec 2021	0	1,026	71.32	3.90	$4,001
Nov 2021	0	1,026	77.43	5.24	$5,373
Oct 2021	0	1,071	79.79	5.71	$6,120
Sep 2021	0	1,049	69.86	5.35	$5,613
Aug 2021	0	1,092	66.02	4.22	$4,609
Jul 2021	0	1,143	70.78	3.98	$4,552
Jun 2021	0	0	69.49	3.38	$0
May 2021	0	1,185	63.48	3.02	$3,576
Apr 2021	0	675	60.36	2.76	$1,862
Mar 2021	0	1,190	61.30	2.72	$3,233
Feb 2021	0	485	57.80	5.55	$2,691
Jan 2021	0	0	50.41	2.81	$0
Dec 2020	0	0	44.64	2.68	$0
Nov 2020	0	1,005	38.77	2.71	$2,720
Oct 2020	0	1,046	36.97	2.48	$2,592
Sep 2020	0	1,104	37.09	1.99	$2,198
Aug 2020	0	0	39.98	2.39	$0
Jul 2020	0	1,128	38.37	1.83	$2,059
Jun 2020	0	1,085	34.90	1.69	$1,834
May 2020	0	1,116	16.92	1.81	$2,025
Apr 2020	0	0	14.75	1.80	$0
Mar 2020	0	1,125	30.34	1.86	$2,088
Feb 2020	0	963	49.88	1.98	$1,907
Jan 2020	0	1,139	57.25	2.09	$2,386
Dec 2019	0	1,134	59.01	2.30	$2,613
Nov 2019	7	1,119	55.30	2.75	$3,465
Oct 2019	15	1,159	53.47	2.42	$3,605
Sep 2019	0	1,218	55.05	2.66	$3,237
Aug 2019	0	2	53.11	2.30	$5
Jul 2019	0	1,280	56.27	2.46	$3,149
Jun 2019	8	1,224	52.78	2.49	$3,471
May 2019	8	1,311	58.48	2.74	$4,060
Apr 2019	8	10	62.63	2.75	$529
Mar 2019	13	12	56.80	3.06	$775
Feb 2019	18	14	50.85	2.79	$954
Jan 2019	4	13	46.03	3.23	$226
Dec 2018	6	1,037	46.59	4.19	$4,620
Nov 2018	6	1,079	52.93	4.24	$4,890
Oct 2018	5	1,043	61.44	3.40	$3,851
Sep 2018	5	1,086	59.54	3.11	$3,673
Aug 2018	4	980	59.40	3.07	$3,243
Jul 2018	4	1,149	65.14	2.93	$3,629
Jun 2018	13	1,098	60.18	3.08	$4,161
May 2018	15	1,140	65.38	2.90	$4,288
Apr 2018	5	839	63.84	2.90	$2,753
Mar 2018	0	733	61.22	2.79	$2,043
Feb 2018	0	1,029	61.78	2.77	$2,846
Jan 2018	0	1,239	62.87	4.01	$4,968
Dec 2017	0	1,216	57.27	2.92	$3,553
Nov 2017	0	1,543	55.42	3.12	$4,812
Oct 2017	0	595	49.29	2.98	$1,775
Sep 2017	0	627	47.52	3.09	$1,936
Aug 2017	0	1,126	45.37	3.00	$3,383
Jul 2017	0	1,086	43.87	3.09	$3,353
Jun 2017	0	806	42.49	3.09	$2,488
May 2017	0	1,175	45.37	3.26	$3,835
Apr 2017	0	1,094	47.93	3.21	$3,513
Mar 2017	0	1,198	46.77	2.98	$3,574
Feb 2017	0	1,088	50.45	2.95	$3,212
Jan 2017	0	1,223	49.41	3.42	$4,181
Dec 2016	0	1,261	48.76	3.72	$4,694
Nov 2016	0	1,126	42.49	2.64	$2,978
Oct 2016	0	1,052	46.19	3.09	$3,251
Sep 2016	0	1,148	41.55	3.10	$3,560
Aug 2016	0	1,112	41.44	2.92	$3,252
Jul 2016	0	1,198	41.62	2.92	$3,503
Jun 2016	0	1,170	45.35	2.69	$3,142
May 2016	0	1,205	42.52	1.99	$2,399
Apr 2016	0	1,154	36.56	1.99	$2,298
Mar 2016	0	1,234	33.01	1.79	$2,214
Feb 2016	0	1,247	26.47	2.06	$2,573
Jan 2016	0	1,262	27.35	2.36	$2,984
Dec 2015	0	1,273	32.36	2.00	$2,548
Nov 2015	0	1,180	38.79	2.17	$2,557
Oct 2015	0	1,281	43.55	2.43	$3,108
Sep 2015	0	1,263	42.99	2.76	$3,484
Aug 2015	0	1,343	40.16	2.87	$3,858
Jul 2015	0	1,398	48.15	2.95	$4,117
Jun 2015	0	1,560	56.15	2.88	$4,497
May 2015	0	729	55.21	2.96	$2,155
Apr 2015	0	1,308	49.82	2.71	$3,540
Mar 2015	0	1,332	42.89	2.93	$3,909
Feb 2015	0	1,004	44.66	2.98	$2,988
Jan 2015	0	1,243	43.43	3.10	$3,854
Dec 2014	0	1,306	54.69	3.59	$4,690
Nov 2014	0	1,284	70.46	4.25	$5,459
Oct 2014	0	1,444	78.30	3.90	$5,633
Sep 2014	0	2,064	86.16	4.05	$8,350
Aug 2014	0	761	89.39	4.04	$3,071
Jul 2014	0	1,320	96.56	4.18	$5,517
Jun 2014	0	1,319	98.16	4.74	$6,248
May 2014	0	1,358	94.73	4.73	$6,419
Apr 2014	0	1,297	95.94	4.81	$6,237
Mar 2014	0	1,285	95.89	5.06	$6,498
Feb 2014	0	1,188	97.40	6.19	$7,356
Jan 2014	0	1,374	90.40	4.86	$6,679
Dec 2013	0	1,372	91.82	4.35	$5,974
Nov 2013	0	1,282	88.85	3.74	$4,792
Oct 2013	10	1,350	97.42	3.78	$6,076
Sep 2013	0	1,280	104.11	3.72	$4,759
Aug 2013	0	1,465	104.25	3.52	$5,161
Jul 2013	6	1,535	102.52	3.72	$6,322
Jun 2013	6	1,577	94.40	3.93	$6,769
May 2013	7	1,011	94.83	4.15	$4,859
Apr 2013	16	1,294	93.96	4.28	$7,045
Mar 2013	25	1,320	93.62	3.91	$7,505
Feb 2013	2	1,159	91.23	3.42	$4,146
Jan 2013	0	1,300	91.60	3.42	$4,446
Dec 2012	0	1,341	86.77	3.42	$4,586
Nov 2012	0	1,349	86.95	3.62	$4,890
Oct 2012	0	1,448	89.38	3.40	$4,923
Sep 2012	0	1,423	94.67	2.92	$4,153
Aug 2012	0	1,522	92.66	2.91	$4,426
Jul 2012	0	1,542	85.13	3.02	$4,658
Jun 2012	0	1,603	79.82	2.52	$4,038
May 2012	0	1,225	91.61	2.49	$3,048
Apr 2012	0	1,369	101.65	2.00	$2,734
Mar 2012	0	1,445	105.05	2.22	$3,211
Feb 2012	0	1,257	101.10	2.57	$3,231
Jan 2012	0	1,348	98.09	2.73	$3,686
Dec 2011	0	1,408	96.87	3.24	$4,562
Nov 2011	0	1,447	95.72	3.31	$4,791
Oct 2011	0	1,616	84.98	3.65	$5,896
Sep 2011	0	1,588	83.62	3.99	$6,329
Aug 2011	0	1,688	83.40	4.15	$7,004
Jul 2011	0	1,644	94.14	4.52	$7,426
Jun 2011	0	1,596	92.90	4.64	$7,405
May 2011	0	1,632	98.13	4.40	$7,189
Apr 2011	0	1,540	105.96	4.33	$6,673
Mar 2011	0	1,559	96.36	4.06	$6,325
Feb 2011	0	1,377	85.64	4.18	$5,756
Jan 2011	0	1,543	86.50	4.59	$7,080
Dec 2010	0	1,417	85.73	4.35	$6,161
Nov 2010	0	1,511	80.84	3.80	$5,735
Oct 2010	0	1,599	78.10	3.51	$5,611
Sep 2010	0	1,563	72.63	3.98	$6,220
Aug 2010	0	1,692	73.68	4.42	$7,478
Jul 2010	0	1,766	72.55	4.74	$8,365
Jun 2010	0	1,665	70.36	4.91	$8,176
May 2010	0	1,686	71.12	4.24	$7,141
Apr 2010	0	1,683	81.69	4.12	$6,938
Mar 2010	0	1,834	78.39	4.39	$8,049
Feb 2010	0	1,350	73.58	5.44	$7,347
Jan 2010	0	1,653	74.36	5.96	$9,859
Dec 2009	0	1,656	71.44	5.48	$9,081
Nov 2009	0	1,705	74.59	3.75	$6,396
Oct 2009	0	1,559	72.54	4.11	$6,408
Sep 2009	0	1,700	65.54	3.06	$5,210
Aug 2009	0	1,820	67.42	3.22	$5,858
Jul 2009	0	1,960	61.13	3.46	$6,790
Jun 2009	0	1,853	66.16	3.90	$7,217
May 2009	0	1,902	54.74	3.93	$7,467
Apr 2009	0	1,856	46.77	3.59	$6,658
Mar 2009	0	1,853	42.14	4.06	$7,521
Feb 2009	0	1,666	32.81	4.63	$7,719
Jan 2009	0	1,860	35.86	5.37	$9,990
Dec 2008	0	1,877	37.10	5.98	$11,219
Nov 2008	0	1,881	55.49	6.86	$12,904
Oct 2008	0	1,804	75.24	6.92	$12,487
Sep 2008	0	1,748	101.76	7.88	$13,769
Aug 2008	0	1,877	114.22	8.48	$15,923
Jul 2008	0	1,925	131.08	11.39	$21,925
Jun 2008	0	1,879	131.33	13.03	$24,488
May 2008	0	1,935	123.17	11.57	$22,396
Apr 2008	0	1,867	110.31	10.45	$19,519
Mar 2008	0	1,955	101.90	9.66	$18,893
Feb 2008	0	1,793	92.53	8.77	$15,726
Jan 2008	0	1,832	90.38	8.21	$15,033
Dec 2007	0	1,873	88.33	7.30	$13,677
Nov 2007	0	1,927	91.67	7.29	$14,051
Oct 2007	0	2,136	82.85	6.92	$14,785
Sep 2007	0	1,964	75.84	6.24	$12,264
Aug 2007	0	2,110	69.06	6.39	$13,479
Jul 2007	0	2,151	70.90	6.39	$13,740
Jun 2007	0	2,044	62.00	7.55	$15,429
May 2007	0	2,134	58.74	7.85	$16,744
Apr 2007	0	2,056	59.61	7.81	$16,047
Mar 2007	0	2,301	56.92	7.30	$16,802
Feb 2007	0	2,052	55.10	8.22	$16,859
Jan 2007	0	2,138	50.30	6.73	$14,382
Dec 2006	0	1,962	56.65	6.92	$13,574
Nov 2006	0	2,068	54.20	7.62	$15,753
Oct 2006	0	2,158	54.90	6.01	$12,978
Sep 2006	0	2,131	60.08	5.04	$10,734
Aug 2006	0	1,836	68.71	7.34	$13,476
Jul 2006	0	2,387	69.37	6.34	$15,140
Jun 2006	0	2,383	66.28	6.38	$15,213
May 2006	0	2,567	66.01	6.42	$16,493
Apr 2006	0	1,808	64.39	7.36	$13,308
Mar 2006	0	2,352	56.70	7.08	$16,659
Feb 2006	0	1,904	57.59	7.75	$14,758
Jan 2006	0	2,119	60.59	8.93	$18,930
Dec 2005	0	1,904	54.94	13.42	$25,543
Nov 2005	0	2,005	54.69	10.59	$21,230
Oct 2005	0	2,351	58.34	13.80	$32,434
Sep 2005	0	2,500	61.45	12.08	$30,198
Aug 2005	0	2,242	61.51	9.80	$21,965
Jul 2005	0	2,306	55.69	7.84	$18,087
Jun 2005	0	0	52.33	7.38	$0
May 2005	0	878	45.22	6.65	$5,840
Apr 2005	0	2,161	49.20	7.36	$15,906
Mar 2005	0	2,250	50.37	7.15	$16,098
Feb 2005	0	2,031	45.22	6.31	$12,820
Jan 2005	0	2,248	43.16	6.32	$14,212
Dec 2004	0	2,271	39.86	6.75	$15,332
Nov 2004	0	2,189	45.28	6.33	$13,857
Oct 2004	0	2,326	49.70	6.52	$15,154
Sep 2004	0	2,286	43.24	5.28	$12,079
Aug 2004	0	2,360	42.37	5.55	$13,100
Jul 2004	0	2,159	38.28	6.08	$13,136
Jun 2004	0	1,947	36.10	6.43	$12,525
May 2004	0	1,958	37.48	6.49	$12,716
Apr 2004	0	1,913	34.47	5.86	$11,207
Mar 2004	0	1,991	34.36	5.53	$11,011
Feb 2004	0	1,833	32.45	5.51	$10,099
Jan 2004	0	2,226	32.03	6.30	$14,023
Dec 2003	0	8,787	30.26	6.30	$55,373
Nov 2003	0	2,368	28.80	4.60	$10,881
Oct 2003	0	2,496	28.17	4.76	$11,880
Sep 2003	0	2,470	26.31	4.75	$11,731
Aug 2003	0	2,513	29.76	5.13	$12,891
Jul 2003	0	2,623	29.41	5.17	$13,563
Jun 2003	0	2,497	28.56	5.98	$14,939
May 2003	0	2,652	26.59	5.97	$15,840
Apr 2003	0	2,607	26.67	5.41	$14,097
Mar 2003	0	2,654	31.14	6.10	$16,179
Feb 2003	0	2,475	33.48	7.93	$19,617
Jan 2003	0	2,666	30.31	5.58	$14,882
Dec 2002	0	2,728	26.91	4.85	$13,241
Nov 2002	0	2,740	24.66	4.14	$11,335
Oct 2002	0	2,841	26.46	4.23	$12,015
Sep 2002	0	2,812	27.44	3.64	$10,222
Aug 2002	0	2,965	25.96	3.16	$9,382
Jul 2002	0	3,072	24.58	3.06	$9,406
Jun 2002	0	2,857	23.73	3.34	$9,537
May 2002	0	3,058	24.66	3.58	$10,960
Apr 2002	0	2,961	23.65	3.51	$10,400
Mar 2002	0	3,056	22.00	3.10	$9,482
Feb 2002	0	2,779	18.22	2.38	$6,602
Jan 2002	0	3,122	17.17	2.38	$7,417
Dec 2001	0	3,201	16.93	2.36	$7,568
Nov 2001	0	3,207	18.07	2.41	$7,715
Oct 2001	0	3,499	19.78	2.53	$8,849
Sep 2001	0	3,345	24.26	2.25	$7,531
Aug 2001	0	3,600	24.87	3.05	$10,991
Jul 2001	0	3,626	23.93	3.20	$11,593
Jun 2001	0	3,412	24.56	3.82	$13,048
May 2001	0	3,705	25.52	4.31	$15,959
Apr 2001	0	3,640	24.68	5.34	$19,421
Mar 2001	0	3,778	24.54	5.38	$20,312
Feb 2001	0	3,529	27.75	5.77	$20,352
Jan 2001	0	3,729	27.47	8.40	$31,319
Dec 2000	0	3,960	26.88	9.12	$36,125
Nov 2000	0	3,856	32.21	5.66	$21,817
Oct 2000	0	3,842	31.23	5.15	$19,769
Sep 2000	0	4,314	31.87	5.19	$22,375
Aug 2000	0	4,390	29.64	4.54	$19,934
Jul 2000	0	4,660	28.53	4.09	$19,058
Jun 2000	0	4,299	29.30	4.40	$18,904
May 2000	0	4,693	27.26	3.68	$17,269
Apr 2000	0	4,717	24.51	3.12	$14,698
Mar 2000	0	3,849	28.42	2.86	$11,007
Feb 2000	0	3,299	27.62	2.73	$8,995
Jan 2000	0	4,403	25.27	2.48	$10,922
Dec 1999	0	4,795	24.28	2.42	$11,622
Nov 1999	0	5,246	23.19	2.43	$12,769
Oct 1999	0	4,632	20.98	2.80	$12,987
Sep 1999	0	4,774	21.75	2.62	$12,502
Aug 1999	0	1,575	19.26	2.88	$4,529
Jul 1999	0	7,800	17.89	2.37	$18,504
Jun 1999	0	8,234	15.94	2.36	$19,450
May 1999	0	8,571	15.79	2.32	$19,893
Apr 1999	0	9,002	15.10	2.21	$19,877
Mar 1999	0	6,455	12.47	1.84	$11,866
Feb 1999	0	5,780	9.98	1.82	$10,507
Jan 1999	0	6,679	10.38	1.90	$12,690
Dec 1998	0	7,711	9.20	1.77	$13,674
Nov 1998	0	8,022	10.89	2.19	$17,534
Oct 1998	0	10,849	12.42	1.97	$21,364
Sep 1998	0	9,926	12.59	2.08	$20,672
Aug 1998	0	0	11.30	1.91	$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.

Apr 2026 — as filed, then multipliedworked

Condensate             0 bbl  × $ 98.93 =         $0
Gas                  843 Mcf  × $  2.87 =     $2,419

────────────────────────────────────────────────────
Month total                                   $2,419

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/171765 is the state's own key, not one this site invented.