MADELINE KATE

Name: MADELINE KATE lease production and value, Jul 2008 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by COG OPERATING LLC (P-5 166150) in the SPRABERRY (TREND AREA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 16631District 7CField 85279200OilCasinghead gasSave

Value, all time

$87.4 M

Jul 2008 – May 2026

Value, last 12 filed months

$478 k

at the published price for each month

Months reported

215

no gaps in the span

Streams

oil, casinghead gas

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	1,023,049 bbl	$77,813,427
Casinghead gas	Production	2,706,162 Mcf	$9,606,747
Total			$87,420,174

Wells on this lease (20)

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 31.3952, -101.9854. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

31.39504, -101.98583 · 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

40.0%

8 of 20 wells

With a plug date

40.0%

8 of 20 wells

Median depth

10,573 ft

20 wells filed one

Completion to plug

9.8 years

median over 8 wells

What the state filed about each well

On the RRC proration schedule

840.0%

A plug date is filed

840.0%

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

840.0%

NeitherNo plug date, and not on the schedule.

1260.0%

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

10k

12k

15k

20k+

Total depth in feet, 20 of 20 wells. Median 10,573 ft, with the middle half between 10,554 and 10,594 ft; the shallowest is 10,450 ft and the deepest 10,630 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

00s

10s

Last completion by decade, 20 of 20 wells, Jul 2008 – Jan 2012. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed

Jul 2008 – Jan 2012

20 of 20 wells

Plug dates filed

Jul 2015 – Jun 2025

8 of 20 wells; 12 filed none

Last completion to plug: a median of 9.8 years across the 8 wells that filed both dates, with the middle half between 9.0 years and 10.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

20 wells


42-46137523	4028	10,550 ft	Jan 2012	—	—
42-46137522	4026	10,572 ft	Jan 2012	Jun 2022	Yes
42-46137356	4021	10,544 ft	Oct 2011	—	—
42-46137357	4020	10,610 ft	Aug 2011	—	—
42-46136778	4008	10,590 ft	Apr 2011	Jul 2015	Yes
42-46136779	4004	10,618 ft	Mar 2011	—	—
42-46136824	4006	10,605 ft	Feb 2011	—	—
42-46136807	4002	10,565 ft	Jan 2011	Apr 2020	Yes
42-46136825	4007	10,573 ft	Dec 2010	Jul 2020	Yes
42-46136659	4003	10,580 ft	Oct 2010	—	—
42-46136245	4016	10,572 ft	Jun 2010	Jun 2025	Yes
42-46136478	4005	10,616 ft	May 2010	Jun 2018	Yes
42-46136225	4014	10,585 ft	Apr 2010	—	—
42-46136453	4001	10,630 ft	Feb 2010	—	—
42-46136222	4012	10,547 ft	Jan 2009	—	—
42-46135940	4013	10,555 ft	Oct 2008	—	—
42-46135939	4015	10,515 ft	Sep 2008	—	—
42-46135903	4010	10,570 ft	Aug 2008	Aug 2018	Yes
42-46135816	4009	10,579 ft	Jul 2008	Jan 2020	Yes
42-46135728	4011	10,450 ft	Jul 2008	—	—

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 (215)

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

215 months


May 2026	422	723	106.41	3.05	$47,107
Apr 2026	405	753	98.93	2.87	$42,228
Mar 2026	595	1,072	89.75	3.15	$56,777
Feb 2026	487	891	63.50	3.75	$34,266
Jan 2026	447	880	59.13	8.00	$33,469
Dec 2025	660	933	56.66	4.41	$41,513
Nov 2025	355	745	58.59	3.93	$23,725
Oct 2025	401	946	59.38	3.30	$26,938
Sep 2025	615	1,443	62.74	3.08	$43,025
Aug 2025	478	1,153	63.93	3.01	$34,035
Jul 2025	596	1,328	66.74	3.32	$44,180
Jun 2025	691	1,668	66.48	3.13	$51,156
May 2025	749	1,710	60.55	3.23	$50,879
Apr 2025	749	1,784	62.36	3.54	$53,029
Mar 2025	836	1,847	67.70	4.27	$64,481
Feb 2025	658	1,642	70.88	4.34	$53,767
Jan 2025	847	1,784	74.32	4.28	$70,582
Dec 2024	882	2,463	68.99	3.12	$68,537
Nov 2024	488	1,595	69.05	2.20	$37,203
Oct 2024	422	1,521	71.37	2.28	$33,588
Sep 2024	760	2,309	69.61	2.36	$58,363
Aug 2024	776	2,462	75.63	2.06	$63,770
Jul 2024	787	2,158	79.93	2.15	$67,537
Jun 2024	829	2,230	78.08	2.63	$70,602
May 2024	886	0	78.81	2.20	$69,826
Apr 2024	732	2,143	84.45	1.66	$65,373
Mar 2024	730	2,204	80.30	1.55	$62,024
Feb 2024	931	1,965	76.09	1.78	$74,345
Jan 2024	806	2,194	73.02	3.30	$66,089
Dec 2023	750	2,073	71.26	2.61	$58,857
Nov 2023	913	2,405	77.89	2.81	$77,866
Oct 2023	794	2,553	85.44	3.09	$75,721
Sep 2023	1,317	3,244	89.04	2.74	$126,138
Aug 2023	665	2,633	80.52	2.67	$60,583
Jul 2023	913	2,689	74.85	2.64	$75,442
Jun 2023	1,142	2,685	68.96	2.26	$84,816
May 2023	769	2,261	70.62	2.23	$59,343
Apr 2023	699	2,338	78.12	2.24	$59,838
Mar 2023	891	2,394	72.85	2.39	$70,639
Feb 2023	943	2,379	75.11	2.47	$76,695
Jan 2023	807	2,636	76.53	3.39	$70,690
Dec 2022	992	2,669	76.41	5.73	$91,090
Nov 2022	1,204	2,581	85.00	5.65	$116,913
Oct 2022	1,118	2,708	87.18	5.86	$113,346
Sep 2022	1,040	2,783	84.88	8.16	$110,995
Aug 2022	1,068	2,791	94.52	9.13	$126,421
Jul 2022	736	2,645	101.58	7.54	$94,712
Jun 2022	456	2,542	115.09	7.98	$72,759
May 2022	894	3,496	109.37	8.43	$127,259
Apr 2022	1,062	4,200	104.22	6.84	$139,400
Mar 2022	1,171	4,447	108.88	5.08	$150,073
Feb 2022	1,294	4,198	91.05	4.86	$138,216
Jan 2022	1,380	4,538	81.84	4.54	$133,531
Dec 2021	1,126	4,349	71.32	3.90	$97,264
Nov 2021	1,179	4,659	77.43	5.24	$115,688
Oct 2021	1,618	5,548	79.79	5.71	$160,801
Sep 2021	1,283	5,197	69.86	5.35	$117,439
Aug 2021	1,140	5,095	66.02	4.22	$96,767
Jul 2021	1,481	5,588	70.78	3.98	$127,077
Jun 2021	1,766	5,323	69.49	3.38	$140,714
May 2021	1,094	4,996	63.48	3.02	$84,523
Apr 2021	1,585	5,206	60.36	2.76	$110,031
Mar 2021	2,509	5,895	61.30	2.72	$169,818
Feb 2021	1,074	3,285	57.80	5.55	$80,302
Jan 2021	1,163	5,208	50.41	2.81	$73,263
Dec 2020	1,251	5,398	44.64	2.68	$70,287
Nov 2020	1,278	6,404	38.77	2.71	$66,881
Oct 2020	1,429	6,733	36.97	2.48	$69,517
Sep 2020	1,594	7,411	37.09	1.99	$73,877
Aug 2020	1,687	7,510	39.98	2.39	$85,358
Jul 2020	2,148	7,741	38.37	1.83	$96,547
Jun 2020	1,162	7,111	34.90	1.69	$52,574
May 2020	991	7,939	16.92	1.81	$31,175
Apr 2020	1,393	8,610	14.75	1.80	$36,082
Mar 2020	2,130	9,725	30.34	1.86	$82,676
Feb 2020	1,963	9,137	49.88	1.98	$116,012
Jan 2020	2,198	9,880	57.25	2.09	$146,532
Dec 2019	2,349	10,041	59.01	2.30	$161,753
Nov 2019	2,480	10,154	55.30	2.75	$165,075
Oct 2019	2,250	10,183	53.47	2.42	$144,935
Sep 2019	2,319	9,829	55.05	2.66	$153,779
Aug 2019	2,395	9,950	53.11	2.30	$150,127
Jul 2019	2,115	10,263	56.27	2.46	$144,259
Jun 2019	2,291	9,947	52.78	2.49	$145,699
May 2019	2,592	10,921	58.48	2.74	$181,507
Apr 2019	2,378	10,674	62.63	2.75	$178,295
Mar 2019	2,383	10,599	56.80	3.06	$167,810
Feb 2019	2,503	9,957	50.85	2.79	$155,080
Jan 2019	2,785	11,467	46.03	3.23	$165,211
Dec 2018	2,748	11,645	46.59	4.19	$176,769
Nov 2018	3,204	11,491	52.93	4.24	$218,278
Oct 2018	2,901	12,270	61.44	3.40	$219,932
Sep 2018	2,808	12,085	59.54	3.11	$204,749
Aug 2018	2,917	12,470	59.40	3.07	$211,510
Jul 2018	2,772	12,429	65.14	2.93	$217,008
Jun 2018	2,943	12,182	60.18	3.08	$214,593
May 2018	2,873	12,699	65.38	2.90	$224,674
Apr 2018	2,900	12,633	63.84	2.90	$221,782
Mar 2018	2,964	13,004	61.22	2.79	$217,696
Feb 2018	3,768	11,886	61.78	2.77	$265,665
Jan 2018	2,991	13,414	62.87	4.01	$241,825
Dec 2017	3,621	13,858	57.27	2.92	$247,861
Nov 2017	3,357	12,315	55.42	3.12	$224,448
Oct 2017	3,597	13,694	49.29	2.98	$218,155
Sep 2017	3,361	13,769	47.52	3.09	$202,223
Aug 2017	3,442	14,138	45.37	3.00	$198,640
Jul 2017	3,276	14,097	43.87	3.09	$187,240
Jun 2017	3,531	13,955	42.49	3.09	$193,115
May 2017	3,520	15,244	45.37	3.26	$209,450
Apr 2017	3,554	14,996	47.93	3.21	$218,504
Mar 2017	3,778	15,606	46.77	2.98	$223,260
Feb 2017	3,688	13,699	50.45	2.95	$226,507
Jan 2017	4,423	15,938	49.41	3.42	$273,029
Dec 2016	4,111	15,380	48.76	3.72	$257,709
Nov 2016	4,078	15,659	42.49	2.64	$214,682
Oct 2016	4,316	16,307	46.19	3.09	$249,749
Sep 2016	3,827	15,352	41.55	3.10	$206,613
Aug 2016	4,053	16,055	41.44	2.92	$214,907
Jul 2016	3,970	16,467	41.62	2.92	$213,387
Jun 2016	4,112	14,593	45.35	2.69	$225,674
May 2016	4,041	15,960	42.52	1.99	$203,600
Apr 2016	3,979	1,651	36.56	1.99	$148,759
Mar 2016	4,376	16,614	33.01	1.79	$174,257
Feb 2016	4,204	15,319	26.47	2.06	$142,893
Jan 2016	4,384	16,084	27.35	2.36	$157,931
Dec 2015	4,654	17,302	32.36	2.00	$185,232
Nov 2015	4,280	16,752	38.79	2.17	$202,328
Oct 2015	4,364	17,208	43.55	2.43	$231,809
Sep 2015	4,472	17,314	42.99	2.76	$240,011
Aug 2015	5,252	18,613	40.16	2.87	$264,386
Jul 2015	4,409	19,001	48.15	2.95	$268,253
Jun 2015	4,763	18,310	56.15	2.88	$320,228
May 2015	5,069	18,795	55.21	2.96	$335,407
Apr 2015	5,093	18,052	49.82	2.71	$302,592
Mar 2015	5,532	19,058	42.89	2.93	$293,197
Feb 2015	4,976	16,833	44.66	2.98	$272,326
Jan 2015	5,477	18,908	43.43	3.10	$296,493
Dec 2014	6,004	19,934	54.69	3.59	$399,949
Nov 2014	5,872	19,636	70.46	4.25	$497,230
Oct 2014	6,366	22,925	78.30	3.90	$587,887
Sep 2014	6,883	22,784	86.16	4.05	$685,211
Aug 2014	7,032	24,027	89.39	4.04	$725,542
Jul 2014	6,872	25,103	96.56	4.18	$768,481
Jun 2014	6,560	23,876	98.16	4.74	$757,027
May 2014	7,848	26,022	94.73	4.73	$866,436
Apr 2014	7,618	23,570	95.94	4.81	$844,222
Mar 2014	7,699	23,533	95.89	5.06	$857,259
Feb 2014	6,792	20,481	97.40	6.19	$788,359
Jan 2014	8,090	24,138	90.40	4.86	$848,664
Dec 2013	7,875	24,290	91.82	4.35	$828,853
Nov 2013	8,763	26,420	88.85	3.74	$877,358
Oct 2013	9,078	29,156	97.42	3.78	$994,570
Sep 2013	9,009	28,941	104.11	3.72	$1,045,522
Aug 2013	9,430	28,064	104.25	3.52	$1,081,936
Jul 2013	8,997	26,883	102.52	3.72	$1,022,316
Jun 2013	8,935	26,794	94.40	3.93	$948,856
May 2013	10,079	29,554	94.83	4.15	$1,078,413
Apr 2013	9,919	27,429	93.96	4.28	$1,049,456
Mar 2013	9,597	27,241	93.62	3.91	$1,005,062
Feb 2013	9,963	25,772	91.23	3.42	$997,062
Jan 2013	10,798	26,683	91.60	3.42	$1,080,350
Dec 2012	11,777	27,529	86.77	3.42	$1,116,044
Nov 2012	12,794	27,387	86.95	3.62	$1,211,715
Oct 2012	12,130	28,740	89.38	3.40	$1,181,886
Sep 2012	11,592	27,892	94.67	2.92	$1,178,815
Aug 2012	13,417	31,345	92.66	2.91	$1,334,376
Jul 2012	14,386	33,075	85.13	3.02	$1,324,593
Jun 2012	14,064	27,690	79.82	2.52	$1,192,341
May 2012	12,552	26,309	91.61	2.49	$1,215,354
Apr 2012	15,182	31,149	101.65	2.00	$1,605,449
Mar 2012	17,632	34,244	105.05	2.22	$1,928,335
Feb 2012	15,946	28,928	101.10	2.57	$1,686,493
Jan 2012	13,243	23,414	98.09	2.73	$1,363,022
Dec 2011	12,682	22,903	96.87	3.24	$1,302,705
Nov 2011	13,203	25,369	95.72	3.31	$1,347,795
Oct 2011	12,200	22,209	84.98	3.65	$1,117,786
Sep 2011	9,085	19,049	83.62	3.99	$835,613
Aug 2011	9,868	19,994	83.40	4.15	$905,953
Jul 2011	13,599	27,333	94.14	4.52	$1,403,680
Jun 2011	13,807	28,317	92.90	4.64	$1,414,058
May 2011	14,733	30,722	98.13	4.40	$1,581,074
Apr 2011	15,563	29,866	105.96	4.33	$1,778,473
Mar 2011	14,019	23,223	96.36	4.06	$1,445,094
Feb 2011	11,330	16,636	85.64	4.18	$1,039,839
Jan 2011	12,489	21,387	86.50	4.59	$1,178,439
Dec 2010	10,607	17,869	85.73	4.35	$987,028
Nov 2010	8,183	15,791	80.84	3.80	$721,446
Oct 2010	8,512	19,664	78.10	3.51	$733,786
Sep 2010	10,922	21,160	72.63	3.98	$877,470
Aug 2010	13,709	23,441	73.68	4.42	$1,113,673
Jul 2010	11,933	20,388	72.55	4.74	$962,307
Jun 2010	8,372	15,201	70.36	4.91	$663,697
May 2010	8,055	15,361	71.12	4.24	$637,929
Apr 2010	6,764	14,415	81.69	4.12	$611,980
Mar 2010	5,060	10,365	78.39	4.39	$442,142
Feb 2010	3,552	7,740	73.58	5.44	$303,480
Jan 2010	3,741	7,667	74.36	5.96	$323,907
Dec 2009	4,516	8,992	71.44	5.48	$371,933
Nov 2009	4,875	11,008	74.59	3.75	$404,923
Oct 2009	5,461	10,821	72.54	4.11	$440,618
Sep 2009	4,997	10,466	65.54	3.06	$359,579
Aug 2009	5,268	11,014	67.42	3.22	$390,617
Jul 2009	6,198	11,653	61.13	3.46	$419,256
Jun 2009	6,873	11,702	66.16	3.90	$500,297
May 2009	6,213	13,034	54.74	3.93	$391,268
Apr 2009	8,058	12,164	46.77	3.59	$420,511
Mar 2009	8,059	12,315	42.14	4.06	$389,593
Feb 2009	6,924	10,234	32.81	4.63	$274,591
Jan 2009	7,996	11,194	35.86	5.37	$346,860
Dec 2008	10,098	13,611	37.10	5.98	$455,991
Nov 2008	10,271	13,501	55.49	6.86	$662,560
Oct 2008	10,039	10,458	75.24	6.92	$827,724
Sep 2008	7,188	2,763	101.76	7.88	$753,215
Aug 2008	3,376	683	114.22	8.48	$391,401
Jul 2008	8	50	131.08	11.39	$1,618

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                  422 bbl  × $106.41 =    $44,905
Casinghead gas       723 Mcf  × $  3.05 =     $2,202

────────────────────────────────────────────────────
Month total                                  $47,107

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. 7C/O/16631 is the state's own key, not one this site invented.