COX 21

Name: COX 21 lease production and value, Jul 2011 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by CRESCENT ENERGY OPERATING, LLC (P-5 103575) in the GARDEN CITY, S. (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 41648District 08Field 33998500Hydrogen sulphide fieldOilCasinghead gasSave Export

Value, all time

$24.5 M

Jul 2011 – May 2026

Value, last 12 filed months

$727 k

at the published price for each month

Months reported

179

no gaps in the span

Streams

oil, casinghead gas

The GARDEN CITY, S. (WOLFCAMP) 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 512 leases and 922 wells, and the rule below applies to all of them.

Discovered

1964-03-12

as the register files it

Field class

Oil and gas

the register's own label

Between wells

0 ft

minimum

From a lease line

330 ft

minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2014-05-22.

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: “COMMINGLING FEE. GRANTED PER DOCKET #08-0287087.”

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	271,662 bbl	$17,243,660
Casinghead gas	Production	2,194,433 Mcf	$7,222,905
Total			$24,466,565

Wells on this lease (3)

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 31.7285, -101.3805. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

31.73034, -101.38058 · 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

33.3%

1 of 3 wells

With a plug date

33.3%

1 of 3 wells

Median depth

9,610 ft

3 wells filed one

Completion to plug

14.2 years

median over 1 well

What the state filed about each well

On the RRC proration schedule

133.3%

A plug date is filed

133.3%

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

133.3%

NeitherNo plug date, and not on the schedule.

266.7%

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

Between 9,187 and 9,838 ft, median 9,610 ft, over the 3 wells that filed a depth.

Completions filed

Jul 2011 – Sep 2014

3 of 3 wells

Plug dates filed

Sep 2025

1 of 3 wells; 2 filed none

Last completion to plug: a median of 14.2 years across the 1 well that filed both dates, with the middle half between 14.2 years and 14.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells


42-17336622	6SC	9,187 ft	Sep 2014	—	—
42-17334408	2	9,838 ft	Jul 2012	—	—
42-17334049	1	9,610 ft	Jul 2011	Sep 2025	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 (179)

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

179 months


May 2026	340	8,451	106.41	3.05	$61,920
Apr 2026	389	8,266	98.93	2.87	$62,205
Mar 2026	668	8,540	89.75	3.15	$86,849
Feb 2026	341	6,657	63.50	3.75	$46,619
Jan 2026	321	7,073	59.13	8.00	$75,550
Dec 2025	399	8,107	56.66	4.41	$58,386
Nov 2025	426	8,010	58.59	3.93	$56,410
Oct 2025	424	9,550	59.38	3.30	$56,738
Sep 2025	431	8,217	62.74	3.08	$52,324
Aug 2025	422	8,440	63.93	3.01	$52,423
Jul 2025	433	9,159	66.74	3.32	$59,262
Jun 2025	444	9,147	66.48	3.13	$58,136
May 2025	637	9,151	60.55	3.23	$68,149
Apr 2025	392	10,060	62.36	3.54	$60,089
Mar 2025	629	9,613	67.70	4.27	$83,615
Feb 2025	455	8,609	70.88	4.34	$69,621
Jan 2025	718	8,627	74.32	4.28	$90,274
Dec 2024	413	8,965	68.99	3.12	$56,476
Nov 2024	380	8,569	69.05	2.20	$45,077
Oct 2024	437	8,443	71.37	2.28	$50,451
Sep 2024	663	7,483	69.61	2.36	$63,844
Aug 2024	472	8,214	75.63	2.06	$52,648
Jul 2024	445	8,596	79.93	2.15	$54,021
Jun 2024	609	8,342	78.08	2.63	$69,523
May 2024	452	8,602	78.81	2.20	$54,533
Apr 2024	459	8,595	84.45	1.66	$53,023
Mar 2024	482	9,052	80.30	1.55	$52,691
Feb 2024	687	8,407	76.09	1.78	$67,269
Jan 2024	510	8,892	73.02	3.30	$66,563
Dec 2023	470	8,919	71.26	2.61	$56,777
Nov 2023	700	8,702	77.89	2.81	$78,954
Oct 2023	501	9,194	85.44	3.09	$71,190
Sep 2023	591	8,732	89.04	2.74	$76,505
Aug 2023	482	9,407	80.52	2.67	$63,954
Jul 2023	497	9,520	74.85	2.64	$62,350
Jun 2023	684	9,260	68.96	2.26	$68,082
May 2023	495	9,142	70.62	2.23	$55,320
Apr 2023	545	9,282	78.12	2.24	$63,346
Mar 2023	742	9,498	72.85	2.39	$76,785
Feb 2023	448	8,076	75.11	2.47	$53,562
Jan 2023	754	8,905	76.53	3.39	$87,871
Dec 2022	544	9,493	76.41	5.73	$95,953
Nov 2022	721	9,101	85.00	5.65	$112,671
Oct 2022	711	9,665	87.18	5.86	$118,658
Sep 2022	513	10,533	84.88	8.16	$129,531
Aug 2022	716	10,015	94.52	9.13	$159,085
Jul 2022	542	10,341	101.58	7.54	$133,049
Jun 2022	548	9,363	115.09	7.98	$137,760
May 2022	760	10,513	109.37	8.43	$171,778
Apr 2022	581	10,466	104.22	6.84	$132,114
Mar 2022	814	9,707	108.88	5.08	$137,905
Feb 2022	752	9,124	91.05	4.86	$112,802
Jan 2022	1,023	10,620	81.84	4.54	$131,912
Dec 2021	396	9,145	71.32	3.90	$63,900
Nov 2021	581	5,457	77.43	5.24	$73,564
Oct 2021	591	9,941	79.79	5.71	$103,957
Sep 2021	792	10,190	69.86	5.35	$109,855
Aug 2021	615	10,306	66.02	4.22	$84,100
Jul 2021	794	10,644	70.78	3.98	$98,585
Jun 2021	812	10,418	69.49	3.38	$91,645
May 2021	645	10,783	63.48	3.02	$73,484
Apr 2021	790	10,250	60.36	2.76	$75,958
Mar 2021	1,055	10,407	61.30	2.72	$92,947
Feb 2021	460	8,408	57.80	5.55	$73,235
Jan 2021	866	10,883	50.41	2.81	$74,239
Dec 2020	894	11,067	44.64	2.68	$69,517
Nov 2020	800	9,519	38.77	2.71	$56,780
Oct 2020	811	10,372	36.97	2.48	$55,689
Sep 2020	805	10,414	37.09	1.99	$50,592
Aug 2020	796	11,107	39.98	2.39	$58,315
Jul 2020	850	11,361	38.37	1.83	$53,350
Jun 2020	846	10,766	34.90	1.69	$47,723
May 2020	847	11,312	16.92	1.81	$34,860
Apr 2020	774	10,803	14.75	1.80	$30,909
Mar 2020	1,098	11,168	30.34	1.86	$54,044
Feb 2020	846	10,706	49.88	1.98	$63,404
Jan 2020	924	11,751	57.25	2.09	$77,514
Dec 2019	1,160	11,719	59.01	2.30	$95,456
Nov 2019	919	10,389	55.30	2.75	$79,398
Oct 2019	949	12,987	53.47	2.42	$82,153
Sep 2019	1,187	12,171	55.05	2.66	$97,686
Aug 2019	767	12,723	53.11	2.30	$70,054
Jul 2019	967	12,313	56.27	2.46	$84,704
Jun 2019	2,334	13,195	52.78	2.49	$156,060
May 2019	702	12,432	58.48	2.74	$75,121
Apr 2019	1,266	12,061	62.63	2.75	$112,466
Mar 2019	1,095	15,187	56.80	3.06	$108,700
Feb 2019	1,181	11,655	50.85	2.79	$92,597
Jan 2019	1,191	11,702	46.03	3.23	$92,598
Dec 2018	1,238	12,384	46.59	4.19	$109,511
Nov 2018	1,369	12,602	52.93	4.24	$125,859
Oct 2018	1,432	12,865	61.44	3.40	$131,698
Sep 2018	1,030	12,859	59.54	3.11	$101,292
Aug 2018	1,321	13,884	59.40	3.07	$121,044
Jul 2018	1,126	14,431	65.14	2.93	$115,658
Jun 2018	1,528	14,340	60.18	3.08	$136,078
May 2018	1,621	14,134	65.38	2.90	$146,981
Apr 2018	1,456	13,875	63.84	2.90	$133,200
Mar 2018	1,498	13,151	61.22	2.79	$128,357
Feb 2018	1,632	11,478	61.78	2.77	$132,574
Jan 2018	1,678	12,270	62.87	4.01	$154,690
Dec 2017	1,531	13,516	57.27	2.92	$127,168
Nov 2017	1,653	12,885	55.42	3.12	$131,789
Oct 2017	1,879	14,544	49.29	2.98	$136,011
Sep 2017	1,729	13,813	47.52	3.09	$124,807
Aug 2017	1,924	14,957	45.37	3.00	$132,229
Jul 2017	1,948	15,241	43.87	3.09	$132,512
Jun 2017	2,069	14,555	42.49	3.09	$132,847
May 2017	2,000	15,671	45.37	3.26	$141,881
Apr 2017	1,985	15,096	47.93	3.21	$143,623
Mar 2017	2,444	15,798	46.77	2.98	$161,442
Feb 2017	2,156	14,280	50.45	2.95	$150,933
Jan 2017	2,514	16,648	49.41	3.42	$181,133
Dec 2016	2,291	16,471	48.76	3.72	$173,028
Nov 2016	1,891	16,771	42.49	2.64	$124,697
Oct 2016	2,613	17,579	46.19	3.09	$175,018
Sep 2016	1,848	14,185	41.55	3.10	$120,767
Aug 2016	2,402	16,210	41.44	2.92	$146,942
Jul 2016	1,995	16,209	41.62	2.92	$130,433
Jun 2016	2,691	15,831	45.35	2.69	$164,556
May 2016	2,599	15,884	42.52	1.99	$142,135
Apr 2016	2,557	14,519	36.56	1.99	$122,392
Mar 2016	1,665	15,113	33.01	1.79	$82,075
Feb 2016	2,333	16,254	26.47	2.06	$95,297
Jan 2016	3,003	17,516	27.35	2.36	$123,546
Dec 2015	3,120	19,716	32.36	2.00	$140,423
Nov 2015	3,354	21,633	38.79	2.17	$176,988
Oct 2015	3,090	20,920	43.55	2.43	$185,334
Sep 2015	3,174	21,543	42.99	2.76	$195,875
Aug 2015	3,742	25,481	40.16	2.87	$223,473
Jul 2015	3,987	24,581	48.15	2.95	$264,367
Jun 2015	3,704	24,658	56.15	2.88	$279,065
May 2015	4,215	27,001	55.21	2.96	$312,510
Apr 2015	4,114	28,519	49.82	2.71	$282,148
Mar 2015	5,724	31,203	42.89	2.93	$337,074
Feb 2015	5,569	29,098	44.66	2.98	$335,313
Jan 2015	6,211	33,020	43.43	3.10	$372,127
Dec 2014	7,671	38,251	54.69	3.59	$556,900
Nov 2014	8,518	44,078	70.46	4.25	$787,591
Oct 2014	13,969	54,708	78.30	3.90	$1,307,186
Sep 2014	8,088	21,383	86.16	4.05	$783,366
Aug 2014	483	5,698	89.39	4.04	$66,167
Jul 2014	1,376	8,639	96.56	4.18	$168,974
Jun 2014	1,477	10,813	98.16	4.74	$196,202
May 2014	1,068	3,491	94.73	4.73	$117,672
Apr 2014	0	367	95.94	4.81	$1,765
Mar 2014	0	725	95.89	5.06	$3,666
Feb 2014	0	1,378	97.40	6.19	$8,533
Jan 2014	1,394	5,140	90.40	4.86	$151,002
Dec 2013	512	8,388	91.82	4.35	$83,537
Nov 2013	1,035	8,785	88.85	3.74	$124,801
Oct 2013	1,372	8,630	97.42	3.78	$166,276
Sep 2013	173	6,941	104.11	3.72	$43,816
Aug 2013	1,388	8,551	104.25	3.52	$174,821
Jul 2013	1,912	10,622	102.52	3.72	$235,508
Jun 2013	1,414	11,607	94.40	3.93	$179,137
May 2013	2,069	14,050	94.83	4.15	$254,498
Apr 2013	2,535	12,435	93.96	4.28	$291,443
Mar 2013	1,912	8,270	93.62	3.91	$211,361
Feb 2013	710	10,240	91.23	3.42	$99,793
Jan 2013	2,879	16,944	91.60	3.42	$321,663
Dec 2012	2,647	17,772	86.77	3.42	$290,463
Nov 2012	1,757	8,205	86.95	3.62	$182,514
Oct 2012	4,011	13,451	89.38	3.40	$404,232
Sep 2012	3,082	9,354	94.67	2.92	$319,072
Aug 2012	1,045	8,320	92.66	2.91	$121,026
Jul 2012	1,896	7,844	85.13	3.02	$185,102
Jun 2012	1,055	7,317	79.82	2.52	$102,642
May 2012	5	4,586	91.61	2.49	$11,869
Apr 2012	1,223	7,942	101.65	2.00	$140,177
Mar 2012	522	6,734	105.05	2.22	$69,800
Feb 2012	177	8,054	101.10	2.57	$38,595
Jan 2012	2,135	9,392	98.09	2.73	$235,101
Dec 2011	359	9,730	96.87	3.24	$66,299
Nov 2011	1,589	10,114	95.72	3.31	$185,589
Oct 2011	1,743	9,889	84.98	3.65	$184,201
Sep 2011	2,057	12,302	83.62	3.99	$221,040
Aug 2011	3,119	12,454	83.40	4.15	$311,800
Jul 2011	1,214	4,520	94.14	4.52	$134,704

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 2026 — as filed, then multipliedworked

Oil                  340 bbl  × $106.41 =    $36,179
Casinghead gas     8,451 Mcf  × $  3.05 =    $25,740

────────────────────────────────────────────────────
Month total                                  $61,920

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/41648 is the state's own key, not one this site invented.