MCMORDIE BROTHERS

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

Operated by CRAWLEY PETROLEUM CORPORATION (P-5 186937) in the MCMORDIE (UPPER MORROW 9922) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 83921District 10Field 59833500NGPA filingCondensateGasSave Export

Value, all time

$1.3 M

Jan 1993 – Feb 2021

Value, last 12 filed months

$6 k

at the published price for each month

Months reported

338

no gaps in the span

Streams

condensate, gas

The MCMORDIE (UPPER MORROW 9922) 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 1 leases and 1 wells, and the rule below applies to all of them.

Discovered

1979-02-21

as the register files it

Field class

Gas

the register's own label

Between wells

—

no field rule filed

From a lease line

—

no field rule filed

The Commission's schedule remark for this field reads: “ALLOCATION FORMULA EFF. 1-1-80 PER AMENDMENT TO SWR 28 & 29”

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
Condensate	Disposition	146 bbl	$2,635
Gas	Production	398,740 Mcf	$1,261,221
Total			$1,263,856

94,994 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 (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 35.9446, -100.6325. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.94457, -100.63248 · 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

11,700 ft

1 wells filed one

Completion to plug

42.0 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 11,700 ft.

Completions filed

Feb 1979

1 of 1 wells

Plug dates filed

Feb 2021

1 of 1 wells

Last completion to plug: a median of 42.0 years across the 1 well that filed both dates, with the middle half between 42.0 years and 42.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-39330674	1	11,700 ft	Feb 1979	Feb 2021	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 (338)

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

338 months


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	5	39.98	2.39	$12
Jul 2020	0	0	38.37	1.83	$0
Jun 2020	0	281	34.90	1.69	$475
May 2020	0	1,066	16.92	1.81	$1,935
Apr 2020	0	1,054	14.75	1.80	$1,902
Mar 2020	0	1,093	30.34	1.86	$2,029
Feb 2020	0	1,049	49.88	1.98	$2,078
Jan 2020	0	1,144	57.25	2.09	$2,396
Dec 2019	0	1,050	59.01	2.30	$2,420
Nov 2019	0	863	55.30	2.75	$2,374
Oct 2019	0	1,102	53.47	2.42	$2,665
Sep 2019	0	1,073	55.05	2.66	$2,851
Aug 2019	0	658	53.11	2.30	$1,516
Jul 2019	0	623	56.27	2.46	$1,533
Jun 2019	0	737	52.78	2.49	$1,836
May 2019	0	816	58.48	2.74	$2,236
Apr 2019	0	921	62.63	2.75	$2,533
Mar 2019	0	999	56.80	3.06	$3,059
Feb 2019	0	730	50.85	2.79	$2,038
Jan 2019	0	999	46.03	3.23	$3,225
Dec 2018	0	944	46.59	4.19	$3,951
Nov 2018	0	871	52.93	4.24	$3,691
Oct 2018	0	987	61.44	3.40	$3,354
Sep 2018	0	770	59.54	3.11	$2,393
Aug 2018	0	821	59.40	3.07	$2,518
Jul 2018	0	908	65.14	2.93	$2,662
Jun 2018	0	773	60.18	3.08	$2,378
May 2018	0	715	65.38	2.90	$2,074
Apr 2018	0	710	63.84	2.90	$2,060
Mar 2018	0	678	61.22	2.79	$1,889
Feb 2018	0	574	61.78	2.77	$1,588
Jan 2018	0	848	62.87	4.01	$3,400
Dec 2017	0	638	57.27	2.92	$1,864
Nov 2017	0	884	55.42	3.12	$2,757
Oct 2017	0	1,013	49.29	2.98	$3,022
Sep 2017	0	1,189	47.52	3.09	$3,671
Aug 2017	0	485	45.37	3.00	$1,457
Jul 2017	0	588	43.87	3.09	$1,815
Jun 2017	0	634	42.49	3.09	$1,957
May 2017	0	529	45.37	3.26	$1,726
Apr 2017	0	525	47.93	3.21	$1,686
Mar 2017	0	674	46.77	2.98	$2,011
Feb 2017	0	641	50.45	2.95	$1,893
Jan 2017	0	785	49.41	3.42	$2,684
Dec 2016	0	814	48.76	3.72	$3,030
Nov 2016	0	645	42.49	2.64	$1,706
Oct 2016	0	639	46.19	3.09	$1,975
Sep 2016	0	650	41.55	3.10	$2,015
Aug 2016	0	716	41.44	2.92	$2,094
Jul 2016	0	844	41.62	2.92	$2,468
Jun 2016	0	623	45.35	2.69	$1,673
May 2016	0	798	42.52	1.99	$1,589
Apr 2016	0	810	36.56	1.99	$1,613
Mar 2016	0	732	33.01	1.79	$1,313
Feb 2016	0	699	26.47	2.06	$1,442
Jan 2016	0	950	27.35	2.36	$2,246
Dec 2015	0	923	32.36	2.00	$1,847
Nov 2015	0	977	38.79	2.17	$2,117
Oct 2015	0	758	43.55	2.43	$1,839
Sep 2015	0	818	42.99	2.76	$2,256
Aug 2015	0	1,239	40.16	2.87	$3,559
Jul 2015	0	1,006	48.15	2.95	$2,963
Jun 2015	0	938	56.15	2.88	$2,704
May 2015	0	485	55.21	2.96	$1,433
Apr 2015	0	727	49.82	2.71	$1,968
Mar 2015	0	1,021	42.89	2.93	$2,996
Feb 2015	0	799	44.66	2.98	$2,378
Jan 2015	0	1,259	43.43	3.10	$3,904
Dec 2014	0	783	54.69	3.59	$2,812
Nov 2014	0	946	70.46	4.25	$4,022
Oct 2014	0	1,267	78.30	3.90	$4,943
Sep 2014	0	1,156	86.16	4.05	$4,677
Aug 2014	0	1,316	89.39	4.04	$5,310
Jul 2014	0	1,229	96.56	4.18	$5,137
Jun 2014	0	1,281	98.16	4.74	$6,068
May 2014	0	1,752	94.73	4.73	$8,281
Apr 2014	0	2,010	95.94	4.81	$9,666
Mar 2014	0	1,466	95.89	5.06	$7,413
Feb 2014	0	1,613	97.40	6.19	$9,988
Jan 2014	0	371	90.40	4.86	$1,803
Dec 2013	0	116	91.82	4.35	$505
Nov 2013	0	146	88.85	3.74	$546
Oct 2013	0	270	97.42	3.78	$1,020
Sep 2013	0	58	104.11	3.72	$216
Aug 2013	0	207	104.25	3.52	$729
Jul 2013	0	728	102.52	3.72	$2,707
Jun 2013	0	709	94.40	3.93	$2,789
May 2013	0	736	94.83	4.15	$3,054
Apr 2013	0	924	93.96	4.28	$3,957
Mar 2013	0	979	93.62	3.91	$3,831
Feb 2013	0	381	91.23	3.42	$1,303
Jan 2013	0	345	91.60	3.42	$1,180
Dec 2012	0	200	86.77	3.42	$684
Nov 2012	0	495	86.95	3.62	$1,794
Oct 2012	0	1,093	89.38	3.40	$3,716
Sep 2012	0	1,059	94.67	2.92	$3,091
Aug 2012	0	1,155	92.66	2.91	$3,359
Jul 2012	0	1,138	85.13	3.02	$3,438
Jun 2012	0	193	79.82	2.52	$486
May 2012	0	741	91.61	2.49	$1,844
Apr 2012	0	1,059	101.65	2.00	$2,115
Mar 2012	0	1,126	105.05	2.22	$2,502
Feb 2012	0	957	101.10	2.57	$2,460
Jan 2012	0	1,128	98.09	2.73	$3,084
Dec 2011	0	1,219	96.87	3.24	$3,949
Nov 2011	0	1,219	95.72	3.31	$4,036
Oct 2011	0	1,296	84.98	3.65	$4,729
Sep 2011	0	1,237	83.62	3.99	$4,930
Aug 2011	0	1,381	83.40	4.15	$5,730
Jul 2011	0	1,635	94.14	4.52	$7,386
Jun 2011	0	1,664	92.90	4.64	$7,721
May 2011	0	1,398	98.13	4.40	$6,158
Apr 2011	0	21	105.96	4.33	$91
Mar 2011	0	46	96.36	4.06	$187
Feb 2011	0	77	85.64	4.18	$322
Jan 2011	0	57	86.50	4.59	$262
Dec 2010	0	41	85.73	4.35	$178
Nov 2010	0	52	80.84	3.80	$197
Oct 2010	0	79	78.10	3.51	$277
Sep 2010	0	49	72.63	3.98	$195
Aug 2010	0	146	73.68	4.42	$645
Jul 2010	0	30	72.55	4.74	$142
Jun 2010	0	127	70.36	4.91	$624
May 2010	0	184	71.12	4.24	$779
Apr 2010	0	53	81.69	4.12	$219
Mar 2010	0	487	78.39	4.39	$2,137
Feb 2010	0	937	73.58	5.44	$5,099
Jan 2010	0	848	74.36	5.96	$5,058
Dec 2009	0	913	71.44	5.48	$5,007
Nov 2009	0	1,071	74.59	3.75	$4,018
Oct 2009	0	1,103	72.54	4.11	$4,534
Sep 2009	0	1,144	65.54	3.06	$3,506
Aug 2009	0	826	67.42	3.22	$2,658
Jul 2009	0	1,079	61.13	3.46	$3,738
Jun 2009	0	674	66.16	3.90	$2,625
May 2009	0	1,028	54.74	3.93	$4,036
Apr 2009	0	433	46.77	3.59	$1,553
Mar 2009	0	1,706	42.14	4.06	$6,925
Feb 2009	0	299	32.81	4.63	$1,385
Jan 2009	0	654	35.86	5.37	$3,513
Dec 2008	0	1,013	37.10	5.98	$6,055
Nov 2008	0	1,284	55.49	6.86	$8,809
Oct 2008	0	1,276	75.24	6.92	$8,832
Sep 2008	0	1,312	101.76	7.88	$10,335
Aug 2008	0	1,346	114.22	8.48	$11,418
Jul 2008	0	310	131.08	11.39	$3,531
Jun 2008	0	1,171	131.33	13.03	$15,261
May 2008	0	1,617	123.17	11.57	$18,716
Apr 2008	0	1,209	110.31	10.45	$12,640
Mar 2008	0	143	101.90	9.66	$1,382
Feb 2008	0	142	92.53	8.77	$1,245
Jan 2008	0	355	90.38	8.21	$2,913
Dec 2007	0	677	88.33	7.30	$4,943
Nov 2007	0	1,282	91.67	7.29	$9,348
Oct 2007	0	1,458	82.85	6.92	$10,092
Sep 2007	0	1,179	75.84	6.24	$7,362
Aug 2007	0	1,345	69.06	6.39	$8,592
Jul 2007	0	1,230	70.90	6.39	$7,857
Jun 2007	0	1,453	62.00	7.55	$10,968
May 2007	0	1,526	58.74	7.85	$11,973
Apr 2007	0	1,094	59.61	7.81	$8,539
Mar 2007	0	832	56.92	7.30	$6,075
Feb 2007	0	1,060	55.10	8.22	$8,709
Jan 2007	0	985	50.30	6.73	$6,626
Dec 2006	0	1,628	56.65	6.92	$11,263
Nov 2006	0	1,974	54.20	7.62	$15,037
Oct 2006	0	80	54.90	6.01	$481
Sep 2006	0	59	60.08	5.04	$297
Aug 2006	0	66	68.71	7.34	$484
Jul 2006	0	187	69.37	6.34	$1,186
Jun 2006	0	118	66.28	6.38	$753
May 2006	0	139	66.01	6.42	$893
Apr 2006	0	472	64.39	7.36	$3,474
Mar 2006	0	205	56.70	7.08	$1,452
Feb 2006	0	361	57.59	7.75	$2,798
Jan 2006	0	913	60.59	8.93	$8,156
Dec 2005	0	552	54.94	13.42	$7,405
Nov 2005	0	1,376	54.69	10.59	$14,570
Oct 2005	0	1,287	58.34	13.80	$17,755
Sep 2005	0	260	61.45	12.08	$3,141
Aug 2005	0	668	61.51	9.80	$6,544
Jul 2005	0	1,315	55.69	7.84	$10,314
Jun 2005	0	1,244	52.33	7.38	$9,182
May 2005	0	1,383	45.22	6.65	$9,199
Apr 2005	0	994	49.20	7.36	$7,316
Mar 2005	0	1,232	50.37	7.15	$8,815
Feb 2005	0	844	45.22	6.31	$5,327
Jan 2005	0	1,075	43.16	6.32	$6,796
Dec 2004	0	1,425	39.86	6.75	$9,620
Nov 2004	0	1,077	45.28	6.33	$6,818
Oct 2004	0	1,111	49.70	6.52	$7,238
Sep 2004	0	1,137	43.24	5.28	$6,008
Aug 2004	0	1,125	42.37	5.55	$6,244
Jul 2004	0	1,003	38.28	6.08	$6,102
Jun 2004	0	687	36.10	6.43	$4,419
May 2004	0	276	37.48	6.49	$1,793
Apr 2004	0	325	34.47	5.86	$1,904
Mar 2004	0	396	34.36	5.53	$2,190
Feb 2004	0	972	32.45	5.51	$5,355
Jan 2004	0	896	32.03	6.30	$5,644
Dec 2003	0	1,001	30.26	6.30	$6,308
Nov 2003	0	1,170	28.80	4.60	$5,376
Oct 2003	0	1,710	28.17	4.76	$8,139
Sep 2003	0	1,184	26.31	4.75	$5,623
Aug 2003	0	1,237	29.76	5.13	$6,345
Jul 2003	0	1,315	29.41	5.17	$6,800
Jun 2003	0	1,246	28.56	5.98	$7,455
May 2003	0	1,403	26.59	5.97	$8,380
Apr 2003	0	953	26.67	5.41	$5,153
Mar 2003	0	1,383	31.14	6.10	$8,431
Feb 2003	0	1,960	33.48	7.93	$15,535
Jan 2003	0	1,426	30.31	5.58	$7,960
Dec 2002	0	1,130	26.91	4.85	$5,485
Nov 2002	0	1,561	24.66	4.14	$6,458
Oct 2002	0	1,828	26.46	4.23	$7,731
Sep 2002	0	651	27.44	3.64	$2,367
Aug 2002	0	1,184	25.96	3.16	$3,746
Jul 2002	0	1,286	24.58	3.06	$3,937
Jun 2002	0	1,530	23.73	3.34	$5,108
May 2002	0	2,510	24.66	3.58	$8,996
Apr 2002	0	1,727	23.65	3.51	$6,066
Mar 2002	0	1,829	22.00	3.10	$5,675
Feb 2002	0	653	18.22	2.38	$1,551
Jan 2002	0	1,718	17.17	2.38	$4,081
Dec 2001	0	2,853	16.93	2.36	$6,746
Nov 2001	0	1,527	18.07	2.41	$3,673
Oct 2001	0	1,651	19.78	2.53	$4,175
Sep 2001	0	1,872	24.26	2.25	$4,214
Aug 2001	0	2,007	24.87	3.05	$6,128
Jul 2001	0	2,225	23.93	3.20	$7,114
Jun 2001	0	1,196	24.56	3.82	$4,574
May 2001	0	1,046	25.52	4.31	$4,505
Apr 2001	0	1,703	24.68	5.34	$9,086
Mar 2001	0	719	24.54	5.38	$3,866
Feb 2001	0	1,459	27.75	5.77	$8,414
Jan 2001	0	1,296	27.47	8.40	$10,885
Dec 2000	0	991	26.88	9.12	$9,040
Nov 2000	0	2,131	32.21	5.66	$12,057
Oct 2000	0	1,866	31.23	5.15	$9,602
Sep 2000	0	2,106	31.87	5.19	$10,923
Aug 2000	0	1,163	29.64	4.54	$5,281
Jul 2000	0	1,542	28.53	4.09	$6,306
Jun 2000	0	1,371	29.30	4.40	$6,029
May 2000	0	1,548	27.26	3.68	$5,696
Apr 2000	0	1,694	24.51	3.12	$5,279
Mar 2000	0	1,906	28.42	2.86	$5,451
Feb 2000	0	1,831	27.62	2.73	$4,992
Jan 2000	0	2,015	25.27	2.48	$4,998
Dec 1999	0	1,612	24.28	2.42	$3,907
Nov 1999	0	2,006	23.19	2.43	$4,883
Oct 1999	0	1,778	20.98	2.80	$4,985
Sep 1999	0	1,699	21.75	2.62	$4,449
Aug 1999	0	2,202	19.26	2.88	$6,332
Jul 1999	0	1,755	17.89	2.37	$4,164
Jun 1999	0	1,951	15.94	2.36	$4,608
May 1999	0	1,672	15.79	2.32	$3,881
Apr 1999	0	1,812	15.10	2.21	$4,001
Mar 1999	0	1,321	12.47	1.84	$2,428
Feb 1999	0	1,501	9.98	1.82	$2,729
Jan 1999	0	1,702	10.38	1.90	$3,234
Dec 1998	0	1,904	9.20	1.77	$3,376
Nov 1998	0	2,187	10.89	2.19	$4,780
Oct 1998	0	1,785	12.42	1.97	$3,515
Sep 1998	0	2,229	12.59	2.08	$4,642
Aug 1998	0	1,834	11.30	1.91	$3,498
Jul 1998	0	1,398	11.74	2.24	$3,128
Jun 1998	0	1,463	11.24	2.24	$3,273
May 1998	0	1,901	12.62	2.21	$4,194
Apr 1998	0	1,932	13.04	2.51	$4,840
Mar 1998	0	2,025	12.80	2.31	$4,677
Feb 1998	0	2,048	13.95	2.30	$4,709
Jan 1998	0	2,089	14.70	2.15	$4,501
Dec 1997	0	1,277	16.32	2.41	$3,079
Nov 1997	0	1,943	18.19	3.09	$6,000
Oct 1997	0	1,298	19.25	3.15	$4,088
Sep 1997	0	2,516	17.74	2.95	$7,434
Aug 1997	0	744	17.86	2.55	$1,901
Jul 1997	0	1,699	17.58	2.25	$3,818
Jun 1997	0	1,525	17.24	2.26	$3,442
May 1997	0	2,344	18.97	2.31	$5,411
Apr 1997	0	1,860	17.88	2.08	$3,874
Mar 1997	0	1,932	18.95	1.94	$3,746
Feb 1997	0	1,933	20.49	2.21	$4,264
Jan 1997	0	2,732	23.48	3.54	$9,670
Dec 1996	0	2,142	23.32	—	$0
Nov 1996	0	1,957	21.97	—	$0
Oct 1996	0	1,986	23.31	—	$0
Sep 1996	0	2,331	22.22	—	$0
Aug 1996	0	2,247	20.26	—	$0
Jul 1996	0	1,852	19.55	—	$0
Jun 1996	0	2,414	18.73	—	$0
May 1996	0	1,837	19.43	—	$0
Apr 1996	0	2,566	21.51	—	$0
Mar 1996	0	2,207	19.38	—	$0
Feb 1996	0	711	16.98	—	$0
Jan 1996	0	730	17.07	—	$0
Dec 1995	0	436	17.19	—	$0
Nov 1995	0	2,123	16.00	—	$0
Oct 1995	0	1,698	15.43	—	$0
Sep 1995	0	2,012	16.18	—	$0
Aug 1995	0	1,953	15.92	—	$0
Jul 1995	0	2,164	15.24	—	$0
Jun 1995	0	2,394	16.41	—	$0
May 1995	0	2,242	17.56	—	$0
Apr 1995	0	2,546	17.73	—	$0
Mar 1995	0	2,083	16.44	—	$0
Feb 1995	0	1,868	16.58	—	$0
Jan 1995	0	2,055	15.92	—	$0
Dec 1994	0	1,966	15.03	—	$0
Nov 1994	0	2,314	15.90	—	$0
Oct 1994	0	2,171	15.58	—	$0
Sep 1994	0	1,289	15.29	—	$0
Aug 1994	0	1,726	16.13	—	$0
Jul 1994	0	2,453	17.56	—	$0
Jun 1994	0	2,283	17.09	—	$0
May 1994	0	2,156	15.88	—	$0
Apr 1994	0	2,555	14.14	—	$0
Mar 1994	0	2,354	12.46	—	$0
Feb 1994	0	2,277	12.50	—	$0
Jan 1994	0	1,523	12.66	—	$0
Dec 1993	0	2,414	12.33	—	$0
Nov 1993	0	2,689	14.49	—	$0
Oct 1993	0	3,369	15.85	—	$0
Sep 1993	0	2,916	15.03	—	$0
Aug 1993	0	2,380	15.66	—	$0
Jul 1993	0	915	15.46	—	$0
Jun 1993	0	1,486	16.79	—	$0
May 1993	0	1,558	17.68	—	$0
Apr 1993	146	1,945	18.05	—	$2,635
Mar 1993	0	1,095	18.14	—	$0
Feb 1993	0	1,202	17.90	—	$0
Jan 1993	0	1,404	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.

Aug 2020 — as filed, then multipliedworked

Condensate             0 bbl  × $ 39.98 =         $0
Gas                    5 Mcf  × $  2.39 =        $12

────────────────────────────────────────────────────
Month total                                      $12

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/83921 is the state's own key, not one this site invented.