FEDERAL -161-

Name: FEDERAL -161- lease production and value, Jan 1993 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by MAKAR PRODUCTION COMPANY (P-5 522986) in the MATHERS RANCH (TONKAWA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4235District 10Field 58257798OilCasinghead gasSave Export

Value, all time

$1.2 M

Jan 1993 – Jul 2023

Value, last 12 filed months

$5 k

at the published price for each month

Months reported

367

no gaps in the span

Streams

oil, casinghead gas

The MATHERS RANCH (TONKAWA) 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 19 leases and 22 wells, and the rule below applies to all of them.

Discovered

1974-03-25

as the register files it

Field class

Oil and 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: “FIELD MADE EXEMPT EFC 9/1/11”

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	3,198 bbl	$111,108
Casinghead gas	Production	311,096 Mcf	$1,122,245
Total			$1,233,353

89,102 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 35.8919, -100.1705. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.89191, -100.17052 · 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

0.0%

0 of 1 wells

Median depth

8,000 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

00.0%

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

00.0%

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 8,000 ft.

Completions filed

Aug 1977

1 of 1 wells

1 well


42-21130865	2	8,000 ft	Aug 1977	—	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 (367)

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

367 months


Jul 2023	0	0	74.85	2.64	$0
Jun 2023	0	0	68.96	2.26	$0
May 2023	62	0	70.62	2.23	$4,378
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	48	94.52	9.13	$438
Jul 2022	0	48	101.58	7.54	$362
Jun 2022	0	47	115.09	7.98	$375
May 2022	0	50	109.37	8.43	$422
Apr 2022	0	50	104.22	6.84	$342
Mar 2022	0	52	108.88	5.08	$264
Feb 2022	0	51	91.05	4.86	$248
Jan 2022	0	52	81.84	4.54	$236
Dec 2021	0	52	71.32	3.90	$203
Nov 2021	0	52	77.43	5.24	$272
Oct 2021	0	52	79.79	5.71	$297
Sep 2021	0	53	69.86	5.35	$284
Aug 2021	0	53	66.02	4.22	$224
Jul 2021	0	51	70.78	3.98	$203
Jun 2021	0	53	69.49	3.38	$179
May 2021	0	53	63.48	3.02	$160
Apr 2021	0	55	60.36	2.76	$152
Mar 2021	0	54	61.30	2.72	$147
Feb 2021	0	51	57.80	5.55	$283
Jan 2021	0	54	50.41	2.81	$152
Dec 2020	0	58	44.64	2.68	$155
Nov 2020	0	58	38.77	2.71	$157
Oct 2020	0	58	36.97	2.48	$144
Sep 2020	0	58	37.09	1.99	$115
Aug 2020	0	58	39.98	2.39	$138
Jul 2020	0	58	38.37	1.83	$106
Jun 2020	0	58	34.90	1.69	$98
May 2020	0	59	16.92	1.81	$107
Apr 2020	0	59	14.75	1.80	$106
Mar 2020	0	59	30.34	1.86	$110
Feb 2020	0	58	49.88	1.98	$115
Jan 2020	0	58	57.25	2.09	$121
Dec 2019	0	57	59.01	2.30	$131
Nov 2019	0	58	55.30	2.75	$160
Oct 2019	0	58	53.47	2.42	$140
Sep 2019	0	59	55.05	2.66	$157
Aug 2019	0	58	53.11	2.30	$134
Jul 2019	0	58	56.27	2.46	$143
Jun 2019	0	57	52.78	2.49	$142
May 2019	0	58	58.48	2.74	$159
Apr 2019	0	58	62.63	2.75	$160
Mar 2019	0	58	56.80	3.06	$178
Feb 2019	0	58	50.85	2.79	$162
Jan 2019	0	59	46.03	3.23	$190
Dec 2018	0	59	46.59	4.19	$247
Nov 2018	0	32	52.93	4.24	$136
Oct 2018	0	24	61.44	3.40	$82
Sep 2018	0	27	59.54	3.11	$84
Aug 2018	0	133	59.40	3.07	$408
Jul 2018	0	62	65.14	2.93	$182
Jun 2018	0	61	60.18	3.08	$188
May 2018	0	62	65.38	2.90	$180
Apr 2018	0	53	63.84	2.90	$154
Mar 2018	0	52	61.22	2.79	$145
Feb 2018	0	149	61.78	2.77	$412
Jan 2018	0	141	62.87	4.01	$565
Dec 2017	0	150	57.27	2.92	$438
Nov 2017	0	140	55.42	3.12	$437
Oct 2017	0	127	49.29	2.98	$379
Sep 2017	0	139	47.52	3.09	$429
Aug 2017	0	139	45.37	3.00	$418
Jul 2017	0	147	43.87	3.09	$454
Jun 2017	0	151	42.49	3.09	$466
May 2017	0	140	45.37	3.26	$457
Apr 2017	0	126	47.93	3.21	$405
Mar 2017	0	156	46.77	2.98	$465
Feb 2017	0	208	50.45	2.95	$614
Jan 2017	168	218	49.41	3.42	$9,046
Dec 2016	0	261	48.76	3.72	$972
Nov 2016	0	235	42.49	2.64	$621
Oct 2016	0	36	46.19	3.09	$111
Sep 2016	0	128	41.55	3.10	$397
Aug 2016	63	145	41.44	2.92	$3,035
Jul 2016	0	314	41.62	2.92	$918
Jun 2016	0	149	45.35	2.69	$400
May 2016	0	261	42.52	1.99	$520
Apr 2016	0	139	36.56	1.99	$277
Mar 2016	0	0	33.01	1.79	$0
Feb 2016	0	0	26.47	2.06	$0
Jan 2016	0	471	27.35	2.36	$1,114
Dec 2015	0	199	32.36	2.00	$398
Nov 2015	0	565	38.79	2.17	$1,225
Oct 2015	0	579	43.55	2.43	$1,405
Sep 2015	0	507	42.99	2.76	$1,399
Aug 2015	0	552	40.16	2.87	$1,586
Jul 2015	0	597	48.15	2.95	$1,758
Jun 2015	0	610	56.15	2.88	$1,759
May 2015	0	596	55.21	2.96	$1,761
Apr 2015	0	661	49.82	2.71	$1,789
Mar 2015	0	680	42.89	2.93	$1,996
Feb 2015	0	593	44.66	2.98	$1,765
Jan 2015	0	610	43.43	3.10	$1,891
Dec 2014	0	833	54.69	3.59	$2,992
Nov 2014	0	568	70.46	4.25	$2,415
Oct 2014	0	706	78.30	3.90	$2,754
Sep 2014	0	858	86.16	4.05	$3,471
Aug 2014	0	883	89.39	4.04	$3,563
Jul 2014	0	974	96.56	4.18	$4,071
Jun 2014	166	1,164	98.16	4.74	$21,808
May 2014	0	874	94.73	4.73	$4,131
Apr 2014	0	1,089	95.94	4.81	$5,237
Mar 2014	0	1,222	95.89	5.06	$6,179
Feb 2014	0	779	97.40	6.19	$4,824
Jan 2014	0	760	90.40	4.86	$3,694
Dec 2013	0	1,034	91.82	4.35	$4,503
Nov 2013	0	1,316	88.85	3.74	$4,920
Oct 2013	0	1,287	97.42	3.78	$4,864
Sep 2013	0	782	104.11	3.72	$2,907
Aug 2013	0	1,315	104.25	3.52	$4,632
Jul 2013	0	1,035	102.52	3.72	$3,848
Jun 2013	0	512	94.40	3.93	$2,014
May 2013	0	1,241	94.83	4.15	$5,149
Apr 2013	0	610	93.96	4.28	$2,612
Mar 2013	0	1,157	93.62	3.91	$4,527
Feb 2013	0	1,038	91.23	3.42	$3,550
Jan 2013	0	1,213	91.60	3.42	$4,148
Dec 2012	0	0	86.77	3.42	$0
Nov 2012	0	1,191	86.95	3.62	$4,317
Oct 2012	0	1,407	89.38	3.40	$4,783
Sep 2012	0	1,380	94.67	2.92	$4,027
Aug 2012	0	1,341	92.66	2.91	$3,900
Jul 2012	0	1,305	85.13	3.02	$3,942
Jun 2012	0	1,414	79.82	2.52	$3,562
May 2012	0	1,201	91.61	2.49	$2,988
Apr 2012	0	1,584	101.65	2.00	$3,163
Mar 2012	0	1,385	105.05	2.22	$3,078
Feb 2012	0	884	101.10	2.57	$2,272
Jan 2012	0	964	98.09	2.73	$2,636
Dec 2011	0	1,181	96.87	3.24	$3,826
Nov 2011	0	1,630	95.72	3.31	$5,397
Oct 2011	0	1,353	84.98	3.65	$4,936
Sep 2011	0	1,363	83.62	3.99	$5,433
Aug 2011	0	1,079	83.40	4.15	$4,477
Jul 2011	0	1,506	94.14	4.52	$6,803
Jun 2011	0	1,330	92.90	4.64	$6,171
May 2011	0	1,448	98.13	4.40	$6,378
Apr 2011	0	1,349	105.96	4.33	$5,846
Mar 2011	0	1,608	96.36	4.06	$6,524
Feb 2011	0	363	85.64	4.18	$1,517
Jan 2011	0	1,354	86.50	4.59	$6,213
Dec 2010	0	1,706	85.73	4.35	$7,417
Nov 2010	180	1,596	80.84	3.80	$20,609
Oct 2010	0	1,398	78.10	3.51	$4,905
Sep 2010	0	1,265	72.63	3.98	$5,034
Aug 2010	0	1,556	73.68	4.42	$6,877
Jul 2010	0	1,542	72.55	4.74	$7,304
Jun 2010	0	1,374	70.36	4.91	$6,747
May 2010	0	1,783	71.12	4.24	$7,551
Apr 2010	0	1,409	81.69	4.12	$5,809
Mar 2010	0	1,126	78.39	4.39	$4,942
Feb 2010	0	1,143	73.58	5.44	$6,221
Jan 2010	0	1,258	74.36	5.96	$7,503
Dec 2009	0	1,612	71.44	5.48	$8,840
Nov 2009	0	1,349	74.59	3.75	$5,061
Oct 2009	0	1,546	72.54	4.11	$6,354
Sep 2009	0	1,465	65.54	3.06	$4,490
Aug 2009	0	1,094	67.42	3.22	$3,521
Jul 2009	0	3,203	61.13	3.46	$11,097
Jun 2009	0	914	66.16	3.90	$3,560
May 2009	0	843	54.74	3.93	$3,309
Apr 2009	0	1,006	46.77	3.59	$3,609
Mar 2009	0	1,089	42.14	4.06	$4,420
Feb 2009	0	813	32.81	4.63	$3,767
Jan 2009	0	1,169	35.86	5.37	$6,279
Dec 2008	0	1,345	37.10	5.98	$8,039
Nov 2008	0	1,388	55.49	6.86	$9,522
Oct 2008	0	980	75.24	6.92	$6,784
Sep 2008	0	558	101.76	7.88	$4,395
Aug 2008	0	1,188	114.22	8.48	$10,078
Jul 2008	0	1,181	131.08	11.39	$13,451
Jun 2008	0	1,769	131.33	13.03	$23,055
May 2008	0	2,198	123.17	11.57	$25,440
Apr 2008	0	2,205	110.31	10.45	$23,053
Mar 2008	0	2,016	101.90	9.66	$19,483
Feb 2008	0	1,960	92.53	8.77	$17,190
Jan 2008	173	1,834	90.38	8.21	$30,685
Dec 2007	0	1,885	88.33	7.30	$13,764
Nov 2007	0	1,664	91.67	7.29	$12,133
Oct 2007	0	1,784	82.85	6.92	$12,349
Sep 2007	0	1,860	75.84	6.24	$11,614
Aug 2007	0	1,997	69.06	6.39	$12,757
Jul 2007	0	1,836	70.90	6.39	$11,728
Jun 2007	0	2,144	62.00	7.55	$16,184
May 2007	0	1,323	58.74	7.85	$10,381
Apr 2007	0	1,410	59.61	7.81	$11,005
Mar 2007	0	1,605	56.92	7.30	$11,720
Feb 2007	0	1,451	55.10	8.22	$11,921
Jan 2007	0	1,574	50.30	6.73	$10,588
Dec 2006	0	1,715	56.65	6.92	$11,865
Nov 2006	0	1,814	54.20	7.62	$13,818
Oct 2006	0	1,855	54.90	6.01	$11,156
Sep 2006	0	1,768	60.08	5.04	$8,906
Aug 2006	0	2,104	68.71	7.34	$15,443
Jul 2006	0	1,914	69.37	6.34	$12,140
Jun 2006	0	1,817	66.28	6.38	$11,600
May 2006	0	1,699	66.01	6.42	$10,916
Apr 2006	0	1,466	64.39	7.36	$10,790
Mar 2006	0	1,124	56.70	7.08	$7,961
Feb 2006	0	940	57.59	7.75	$7,286
Jan 2006	0	243	60.59	8.93	$2,171
Dec 2005	0	574	54.94	13.42	$7,700
Nov 2005	0	718	54.69	10.59	$7,602
Oct 2005	0	560	58.34	13.80	$7,726
Sep 2005	0	726	61.45	12.08	$8,769
Aug 2005	0	572	61.51	9.80	$5,604
Jul 2005	0	550	55.69	7.84	$4,314
Jun 2005	163	664	52.33	7.38	$13,431
May 2005	0	664	45.22	6.65	$4,416
Apr 2005	0	610	49.20	7.36	$4,490
Mar 2005	0	608	50.37	7.15	$4,350
Feb 2005	0	637	45.22	6.31	$4,021
Jan 2005	0	420	43.16	6.32	$2,655
Dec 2004	0	557	39.86	6.75	$3,760
Nov 2004	0	591	45.28	6.33	$3,741
Oct 2004	0	706	49.70	6.52	$4,600
Sep 2004	0	643	43.24	5.28	$3,398
Aug 2004	0	769	42.37	5.55	$4,268
Jul 2004	0	788	38.28	6.08	$4,794
Jun 2004	0	756	36.10	6.43	$4,863
May 2004	0	624	37.48	6.49	$4,053
Apr 2004	0	687	34.47	5.86	$4,025
Mar 2004	0	771	34.36	5.53	$4,264
Feb 2004	0	738	32.45	5.51	$4,066
Jan 2004	0	639	32.03	6.30	$4,025
Dec 2003	0	610	30.26	6.30	$3,844
Nov 2003	168	769	28.80	4.60	$8,372
Oct 2003	0	695	28.17	4.76	$3,308
Sep 2003	0	737	26.31	4.75	$3,500
Aug 2003	0	724	29.76	5.13	$3,714
Jul 2003	0	802	29.41	5.17	$4,147
Jun 2003	0	769	28.56	5.98	$4,601
May 2003	0	788	26.59	5.97	$4,706
Apr 2003	0	721	26.67	5.41	$3,899
Mar 2003	0	651	31.14	6.10	$3,969
Feb 2003	0	635	33.48	7.93	$5,033
Jan 2003	0	669	30.31	5.58	$3,734
Dec 2002	0	510	26.91	4.85	$2,475
Nov 2002	0	560	24.66	4.14	$2,317
Oct 2002	0	612	26.46	4.23	$2,588
Sep 2002	0	635	27.44	3.64	$2,308
Aug 2002	0	555	25.96	3.16	$1,756
Jul 2002	0	596	24.58	3.06	$1,825
Jun 2002	0	638	23.73	3.34	$2,130
May 2002	0	633	24.66	3.58	$2,269
Apr 2002	0	622	23.65	3.51	$2,185
Mar 2002	0	688	22.00	3.10	$2,135
Feb 2002	0	447	18.22	2.38	$1,062
Jan 2002	166	582	17.17	2.38	$4,233
Dec 2001	0	554	16.93	2.36	$1,310
Nov 2001	0	576	18.07	2.41	$1,386
Oct 2001	0	637	19.78	2.53	$1,611
Sep 2001	0	467	24.26	2.25	$1,051
Aug 2001	0	561	24.87	3.05	$1,713
Jul 2001	0	597	23.93	3.20	$1,909
Jun 2001	0	592	24.56	3.82	$2,264
May 2001	0	576	25.52	4.31	$2,481
Apr 2001	0	567	24.68	5.34	$3,025
Mar 2001	0	620	24.54	5.38	$3,333
Feb 2001	0	639	27.75	5.77	$3,685
Jan 2001	0	630	27.47	8.40	$5,291
Dec 2000	0	681	26.88	9.12	$6,212
Nov 2000	0	714	32.21	5.66	$4,040
Oct 2000	0	517	31.23	5.15	$2,660
Sep 2000	0	650	31.87	5.19	$3,371
Aug 2000	0	549	29.64	4.54	$2,493
Jul 2000	0	807	28.53	4.09	$3,300
Jun 2000	177	523	29.30	4.40	$7,486
May 2000	0	698	27.26	3.68	$2,568
Apr 2000	0	837	24.51	3.12	$2,608
Mar 2000	0	873	28.42	2.86	$2,497
Feb 2000	0	327	27.62	2.73	$892
Jan 2000	0	825	25.27	2.48	$2,046
Dec 1999	0	853	24.28	2.42	$2,067
Nov 1999	0	743	23.19	2.43	$1,808
Oct 1999	0	792	20.98	2.80	$2,221
Sep 1999	0	376	21.75	2.62	$985
Aug 1999	0	159	19.26	2.88	$457
Jul 1999	0	59	17.89	2.37	$140
Jun 1999	0	362	15.94	2.36	$855
May 1999	0	342	15.79	2.32	$794
Apr 1999	173	398	15.10	2.21	$3,491
Mar 1999	0	478	12.47	1.84	$879
Feb 1999	0	433	9.98	1.82	$787
Jan 1999	0	234	10.38	1.90	$445
Dec 1998	0	281	9.20	1.77	$498
Nov 1998	0	402	10.89	2.19	$879
Oct 1998	0	433	12.42	1.97	$853
Sep 1998	0	376	12.59	2.08	$783
Aug 1998	0	584	11.30	1.91	$1,114
Jul 1998	0	545	11.74	2.24	$1,219
Jun 1998	0	320	11.24	2.24	$716
May 1998	0	533	12.62	2.21	$1,176
Apr 1998	0	407	13.04	2.51	$1,020
Mar 1998	0	566	12.80	2.31	$1,307
Feb 1998	0	706	13.95	2.30	$1,623
Jan 1998	0	705	14.70	2.15	$1,519
Dec 1997	0	549	16.32	2.41	$1,324
Nov 1997	0	696	18.19	3.09	$2,149
Oct 1997	0	534	19.25	3.15	$1,682
Sep 1997	0	434	17.74	2.95	$1,282
Aug 1997	0	523	17.86	2.55	$1,336
Jul 1997	164	574	17.58	2.25	$4,173
Jun 1997	0	519	17.24	2.26	$1,171
May 1997	0	728	18.97	2.31	$1,681
Apr 1997	0	542	17.88	2.08	$1,129
Mar 1997	0	598	18.95	1.94	$1,160
Feb 1997	0	627	20.49	2.21	$1,383
Jan 1997	0	593	23.48	3.54	$2,099
Dec 1996	0	618	23.32	—	$0
Nov 1996	0	619	21.97	—	$0
Oct 1996	0	563	23.31	—	$0
Sep 1996	0	589	22.22	—	$0
Aug 1996	0	554	20.26	—	$0
Jul 1996	0	700	19.55	—	$0
Jun 1996	0	739	18.73	—	$0
May 1996	0	793	19.43	—	$0
Apr 1996	170	729	21.51	—	$3,657
Mar 1996	0	772	19.38	—	$0
Feb 1996	0	764	16.98	—	$0
Jan 1996	0	756	17.07	—	$0
Dec 1995	0	603	17.19	—	$0
Nov 1995	0	663	16.00	—	$0
Oct 1995	0	729	15.43	—	$0
Sep 1995	0	544	16.18	—	$0
Aug 1995	0	835	15.92	—	$0
Jul 1995	0	977	15.24	—	$0
Jun 1995	176	828	16.41	—	$2,888
May 1995	0	967	17.56	—	$0
Apr 1995	0	1,177	17.73	—	$0
Mar 1995	0	1,656	16.44	—	$0
Feb 1995	0	830	16.58	—	$0
Jan 1995	0	1,217	15.92	—	$0
Dec 1994	165	1,352	15.03	—	$2,480
Nov 1994	0	1,845	15.90	—	$0
Oct 1994	0	3,248	15.58	—	$0
Sep 1994	0	3,107	15.29	—	$0
Aug 1994	176	3,200	16.13	—	$2,839
Jul 1994	0	2,873	17.56	—	$0
Jun 1994	0	1,826	17.09	—	$0
May 1994	0	2,752	15.88	—	$0
Apr 1994	0	2,664	14.14	—	$0
Mar 1994	175	3,309	12.46	—	$2,181
Feb 1994	0	3,628	12.50	—	$0
Jan 1994	0	2,486	12.66	—	$0
Dec 1993	0	3,665	12.33	—	$0
Nov 1993	178	2,055	14.49	—	$2,579
Oct 1993	0	2,489	15.85	—	$0
Sep 1993	0	2,625	15.03	—	$0
Aug 1993	0	3,120	15.66	—	$0
Jul 1993	0	1,863	15.46	—	$0
Jun 1993	165	4,064	16.79	—	$2,770
May 1993	0	5,682	17.68	—	$0
Apr 1993	0	3,213	18.05	—	$0
Mar 1993	0	3,601	18.14	—	$0
Feb 1993	170	2,875	17.90	—	$3,043
Jan 1993	0	2,338	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 2023 — as filed, then multipliedworked

Oil                   62 bbl  × $ 70.62 =     $4,378
Casinghead gas         0 Mcf  × $  2.23 =         $0

────────────────────────────────────────────────────
Month total                                   $4,378

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/O/4235 is the state's own key, not one this site invented.