MAHAFFEY

Name: MAHAFFEY lease production and value, Jan 1995 onwards
Creator: Railroad Commission of Texas
License: https://www.rrc.texas.gov/site-policies/

Operated by ENDEAVOR ENERGY RESOURCES L.P. (P-5 251726) in the GIDDINGS (AUSTIN CHALK-3) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 22906District 03Field 34733500OilCasinghead gasSave Export

Value, all time

$1.4 M

Jan 1995 – Mar 2020

Value, last 12 filed months

at the published price for each month

Months reported

303

no gaps in the span

Streams

oil, casinghead gas

The GIDDINGS (AUSTIN CHALK-3) 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 5,900 leases and 6,985 wells, and the rule below applies to all of them.

Discovered

1960-10-29

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 2025-09-30.

The Commission's schedule remark for this field reads: “DKT OG-25-00028011: UFT FIELD, ALLOCATION FORMULA SUSPENDED”

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	30,950 bbl	$751,201
Casinghead gas	Production	347,179 Mcf	$675,081
Total			$1,426,283

176,324 Mcf of this lease's gas, across 24 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 30.5336, -96.2557. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

30.53361, -96.25572 · 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

14,222 ft

1 wells filed one

Completion to plug

24.5 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 14,222 ft.

Completions filed

Jan 1995

1 of 1 wells

Plug dates filed

Jul 2019

1 of 1 wells

Last completion to plug: a median of 24.5 years across the 1 well that filed both dates, with the middle half between 24.5 years and 24.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well


42-04131786	1	14,222 ft	Jan 1995	Jul 2019	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 (303)

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

303 months


Mar 2020	0	0	30.34	1.86	$0
Feb 2020	0	0	49.88	1.98	$0
Jan 2020	0	0	57.25	2.09	$0
Dec 2019	0	0	59.01	2.30	$0
Nov 2019	0	0	55.30	2.75	$0
Oct 2019	0	0	53.47	2.42	$0
Sep 2019	0	0	55.05	2.66	$0
Aug 2019	0	0	53.11	2.30	$0
Jul 2019	0	0	56.27	2.46	$0
Jun 2019	0	0	52.78	2.49	$0
May 2019	0	0	58.48	2.74	$0
Apr 2019	0	0	62.63	2.75	$0
Mar 2019	0	0	56.80	3.06	$0
Feb 2019	0	0	50.85	2.79	$0
Jan 2019	0	0	46.03	3.23	$0
Dec 2018	0	0	46.59	4.19	$0
Nov 2018	0	0	52.93	4.24	$0
Oct 2018	0	0	61.44	3.40	$0
Sep 2018	0	0	59.54	3.11	$0
Aug 2018	0	0	59.40	3.07	$0
Jul 2018	0	0	65.14	2.93	$0
Jun 2018	0	0	60.18	3.08	$0
May 2018	0	0	65.38	2.90	$0
Apr 2018	0	0	63.84	2.90	$0
Mar 2018	0	0	61.22	2.79	$0
Feb 2018	0	0	61.78	2.77	$0
Jan 2018	0	0	62.87	4.01	$0
Dec 2017	0	0	57.27	2.92	$0
Nov 2017	0	0	55.42	3.12	$0
Oct 2017	0	0	49.29	2.98	$0
Sep 2017	0	0	47.52	3.09	$0
Aug 2017	0	0	45.37	3.00	$0
Jul 2017	0	0	43.87	3.09	$0
Jun 2017	0	0	42.49	3.09	$0
May 2017	0	0	45.37	3.26	$0
Apr 2017	0	0	47.93	3.21	$0
Mar 2017	0	0	46.77	2.98	$0
Feb 2017	0	0	50.45	2.95	$0
Jan 2017	0	0	49.41	3.42	$0
Dec 2016	0	0	48.76	3.72	$0
Nov 2016	0	0	42.49	2.64	$0
Oct 2016	0	0	46.19	3.09	$0
Sep 2016	0	0	41.55	3.10	$0
Aug 2016	0	0	41.44	2.92	$0
Jul 2016	98	0	41.62	2.92	$4,079
Jun 2016	0	0	45.35	2.69	$0
May 2016	0	0	42.52	1.99	$0
Apr 2016	0	0	36.56	1.99	$0
Mar 2016	0	0	33.01	1.79	$0
Feb 2016	0	0	26.47	2.06	$0
Jan 2016	0	0	27.35	2.36	$0
Dec 2015	0	0	32.36	2.00	$0
Nov 2015	0	0	38.79	2.17	$0
Oct 2015	0	0	43.55	2.43	$0
Sep 2015	1	0	42.99	2.76	$43
Aug 2015	0	0	40.16	2.87	$0
Jul 2015	0	0	48.15	2.95	$0
Jun 2015	0	0	56.15	2.88	$0
May 2015	0	0	55.21	2.96	$0
Apr 2015	0	0	49.82	2.71	$0
Mar 2015	0	0	42.89	2.93	$0
Feb 2015	0	0	44.66	2.98	$0
Jan 2015	0	0	43.43	3.10	$0
Dec 2014	0	0	54.69	3.59	$0
Nov 2014	0	0	70.46	4.25	$0
Oct 2014	0	0	78.30	3.90	$0
Sep 2014	0	0	86.16	4.05	$0
Aug 2014	0	0	89.39	4.04	$0
Jul 2014	0	0	96.56	4.18	$0
Jun 2014	0	0	98.16	4.74	$0
May 2014	0	0	94.73	4.73	$0
Apr 2014	0	0	95.94	4.81	$0
Mar 2014	0	0	95.89	5.06	$0
Feb 2014	1	0	97.40	6.19	$97
Jan 2014	0	0	90.40	4.86	$0
Dec 2013	0	0	91.82	4.35	$0
Nov 2013	0	0	88.85	3.74	$0
Oct 2013	0	0	97.42	3.78	$0
Sep 2013	0	0	104.11	3.72	$0
Aug 2013	0	0	104.25	3.52	$0
Jul 2013	0	0	102.52	3.72	$0
Jun 2013	0	0	94.40	3.93	$0
May 2013	0	0	94.83	4.15	$0
Apr 2013	0	0	93.96	4.28	$0
Mar 2013	1	0	93.62	3.91	$94
Feb 2013	1	0	91.23	3.42	$91
Jan 2013	0	0	91.60	3.42	$0
Dec 2012	0	0	86.77	3.42	$0
Nov 2012	0	0	86.95	3.62	$0
Oct 2012	0	305	89.38	3.40	$1,037
Sep 2012	0	0	94.67	2.92	$0
Aug 2012	0	0	92.66	2.91	$0
Jul 2012	0	33	85.13	3.02	$100
Jun 2012	0	49	79.82	2.52	$123
May 2012	0	122	91.61	2.49	$304
Apr 2012	156	575	101.65	2.00	$17,006
Mar 2012	0	282	105.05	2.22	$627
Feb 2012	0	181	101.10	2.57	$465
Jan 2012	0	282	98.09	2.73	$771
Dec 2011	0	344	96.87	3.24	$1,114
Nov 2011	0	346	95.72	3.31	$1,146
Oct 2011	183	358	84.98	3.65	$16,858
Sep 2011	0	136	83.62	3.99	$542
Aug 2011	0	193	83.40	4.15	$801
Jul 2011	0	97	94.14	4.52	$438
Jun 2011	0	139	92.90	4.64	$645
May 2011	193	197	98.13	4.40	$19,807
Apr 2011	0	219	105.96	4.33	$949
Mar 2011	0	239	96.36	4.06	$970
Feb 2011	0	252	85.64	4.18	$1,053
Jan 2011	0	257	86.50	4.59	$1,179
Dec 2010	193	305	85.73	4.35	$17,872
Nov 2010	0	257	80.84	3.80	$975
Oct 2010	0	58	78.10	3.51	$204
Sep 2010	0	353	72.63	3.98	$1,405
Aug 2010	0	243	73.68	4.42	$1,074
Jul 2010	0	235	72.55	4.74	$1,113
Jun 2010	0	349	70.36	4.91	$1,714
May 2010	176	370	71.12	4.24	$14,084
Apr 2010	0	367	81.69	4.12	$1,513
Mar 2010	0	360	78.39	4.39	$1,580
Feb 2010	192	346	73.58	5.44	$16,010
Jan 2010	0	349	74.36	5.96	$2,081
Dec 2009	194	393	71.44	5.48	$16,014
Nov 2009	0	292	74.59	3.75	$1,095
Oct 2009	0	367	72.54	4.11	$1,508
Sep 2009	0	411	65.54	3.06	$1,260
Aug 2009	0	346	67.42	3.22	$1,114
Jul 2009	0	419	61.13	3.46	$1,452
Jun 2009	181	460	66.16	3.90	$13,767
May 2009	0	515	54.74	3.93	$2,022
Apr 2009	358	505	46.77	3.59	$18,555
Mar 2009	0	404	42.14	4.06	$1,640
Feb 2009	199	540	32.81	4.63	$9,031
Jan 2009	0	358	35.86	5.37	$1,923
Dec 2008	0	347	37.10	5.98	$2,074
Nov 2008	5	607	55.49	6.86	$4,442
Oct 2008	0	319	75.24	6.92	$2,208
Sep 2008	0	297	101.76	7.88	$2,340
Aug 2008	0	305	114.22	8.48	$2,587
Jul 2008	0	1,310	131.08	11.39	$14,920
Jun 2008	0	23	131.33	13.03	$300
May 2008	0	0	123.17	11.57	$0
Apr 2008	0	0	110.31	10.45	$0
Mar 2008	0	262	101.90	9.66	$2,532
Feb 2008	0	333	92.53	8.77	$2,921
Jan 2008	0	393	90.38	8.21	$3,225
Dec 2007	176	447	88.33	7.30	$18,810
Nov 2007	0	451	91.67	7.29	$3,289
Oct 2007	0	434	82.85	6.92	$3,004
Sep 2007	194	501	75.84	6.24	$17,841
Aug 2007	0	679	69.06	6.39	$4,337
Jul 2007	0	279	70.90	6.39	$1,782
Jun 2007	0	273	62.00	7.55	$2,061
May 2007	0	278	58.74	7.85	$2,181
Apr 2007	0	255	59.61	7.81	$1,990
Mar 2007	187	312	56.92	7.30	$12,922
Feb 2007	0	491	55.10	8.22	$4,034
Jan 2007	0	637	50.30	6.73	$4,285
Dec 2006	0	431	56.65	6.92	$2,982
Nov 2006	194	589	54.20	7.62	$15,002
Oct 2006	0	541	54.90	6.01	$3,253
Sep 2006	0	413	60.08	5.04	$2,080
Aug 2006	0	497	68.71	7.34	$3,648
Jul 2006	0	559	69.37	6.34	$3,546
Jun 2006	0	388	66.28	6.38	$2,477
May 2006	176	390	66.01	6.42	$14,124
Apr 2006	0	797	64.39	7.36	$5,866
Mar 2006	0	658	56.70	7.08	$4,661
Feb 2006	0	466	57.59	7.75	$3,612
Jan 2006	170	610	60.59	8.93	$15,750
Dec 2005	0	523	54.94	13.42	$7,016
Nov 2005	0	935	54.69	10.59	$9,900
Oct 2005	161	716	58.34	13.80	$19,271
Sep 2005	0	589	61.45	12.08	$7,115
Aug 2005	0	600	61.51	9.80	$5,878
Jul 2005	191	656	55.69	7.84	$15,782
Jun 2005	0	653	52.33	7.38	$4,820
May 2005	0	685	45.22	6.65	$4,556
Apr 2005	0	676	49.20	7.36	$4,976
Mar 2005	188	734	50.37	7.15	$14,721
Feb 2005	0	666	45.22	6.31	$4,204
Jan 2005	0	692	43.16	6.32	$4,375
Dec 2004	0	680	39.86	6.75	$4,591
Nov 2004	191	684	45.28	6.33	$12,978
Oct 2004	0	761	49.70	6.52	$4,958
Sep 2004	187	794	43.24	5.28	$12,281
Aug 2004	0	562	42.37	5.55	$3,119
Jul 2004	0	597	38.28	6.08	$3,632
Jun 2004	0	727	36.10	6.43	$4,677
May 2004	0	775	37.48	6.49	$5,033
Apr 2004	0	790	34.47	5.86	$4,628
Mar 2004	179	881	34.36	5.53	$11,022
Feb 2004	0	637	32.45	5.51	$3,510
Jan 2004	0	792	32.03	6.30	$4,989
Dec 2003	168	786	30.26	6.30	$10,037
Nov 2003	0	879	28.80	4.60	$4,039
Oct 2003	0	918	28.17	4.76	$4,369
Sep 2003	184	860	26.31	4.75	$8,925
Aug 2003	0	1,083	29.76	5.13	$5,555
Jul 2003	0	914	29.41	5.17	$4,726
Jun 2003	0	984	28.56	5.98	$5,887
May 2003	168	997	26.59	5.97	$10,422
Apr 2003	0	1,213	26.67	5.41	$6,559
Mar 2003	92	1,284	31.14	6.10	$10,692
Feb 2003	0	916	33.48	7.93	$7,260
Jan 2003	184	890	30.31	5.58	$10,545
Dec 2002	0	747	26.91	4.85	$3,626
Nov 2002	0	833	24.66	4.14	$3,446
Oct 2002	184	512	26.46	4.23	$7,034
Sep 2002	0	122	27.44	3.64	$443
Aug 2002	0	69	25.96	3.16	$218
Jul 2002	0	293	24.58	3.06	$897
Jun 2002	0	105	23.73	3.34	$351
May 2002	375	424	24.66	3.58	$10,767
Apr 2002	0	758	23.65	3.51	$2,662
Mar 2002	0	674	22.00	3.10	$2,091
Feb 2002	1	806	18.22	2.38	$1,933
Jan 2002	0	199	17.17	2.38	$473
Dec 2001	179	629	16.93	2.36	$4,518
Nov 2001	0	710	18.07	2.41	$1,708
Oct 2001	0	725	19.78	2.53	$1,833
Sep 2001	174	397	24.26	2.25	$5,115
Aug 2001	0	379	24.87	3.05	$1,157
Jul 2001	0	675	23.93	3.20	$2,158
Jun 2001	0	1,060	24.56	3.82	$4,054
May 2001	0	1,018	25.52	4.31	$4,385
Apr 2001	163	957	24.68	5.34	$9,129
Mar 2001	0	498	24.54	5.38	$2,677
Feb 2001	1	903	27.75	5.77	$5,235
Jan 2001	186	1,049	27.47	8.40	$13,920
Dec 2000	0	0	26.88	9.12	$0
Nov 2000	0	223	32.21	5.66	$1,262
Oct 2000	184	1,269	31.23	5.15	$12,276
Sep 2000	0	1,162	31.87	5.19	$6,027
Aug 2000	1	1,130	29.64	4.54	$5,161
Jul 2000	182	999	28.53	4.09	$9,278
Jun 2000	0	1,294	29.30	4.40	$5,690
May 2000	183	1,364	27.26	3.68	$10,008
Apr 2000	170	1,450	24.51	3.12	$8,685
Mar 2000	1	1,800	28.42	2.86	$5,176
Feb 2000	187	1,169	27.62	2.73	$8,352
Jan 2000	0	1,416	25.27	2.48	$3,512
Dec 1999	191	1,652	24.28	2.42	$8,641
Nov 1999	0	1,199	23.19	2.43	$2,918
Oct 1999	187	1,465	20.98	2.80	$8,031
Sep 1999	0	988	21.75	2.62	$2,587
Aug 1999	185	2,613	19.26	2.88	$11,077
Jul 1999	192	1,025	17.89	2.37	$5,867
Jun 1999	188	2,207	15.94	2.36	$8,210
May 1999	1	0	15.79	2.32	$16
Apr 1999	191	1,407	15.10	2.21	$5,991
Mar 1999	187	1,016	12.47	1.84	$4,200
Feb 1999	179	1,220	9.98	1.82	$4,004
Jan 1999	190	1,161	10.38	1.90	$4,178
Dec 1998	179	1,519	9.20	1.77	$4,340
Nov 1998	188	2,180	10.89	2.19	$6,812
Oct 1998	180	2,854	12.42	1.97	$7,856
Sep 1998	178	2,610	12.59	2.08	$7,677
Aug 1998	181	2,738	11.30	1.91	$7,268
Jul 1998	186	2,598	11.74	2.24	$7,996
Jun 1998	349	2,232	11.24	2.24	$8,916
May 1998	180	2,072	12.62	2.21	$6,843
Apr 1998	355	1,817	13.04	2.51	$9,181
Mar 1998	366	2,900	12.80	2.31	$11,382
Feb 1998	191	2,395	13.95	2.30	$8,171
Jan 1998	363	2,458	14.70	2.15	$10,633
Dec 1997	190	2,503	16.32	2.41	$9,136
Nov 1997	358	2,640	18.19	3.09	$14,665
Oct 1997	173	3,211	19.25	3.15	$13,444
Sep 1997	358	3,748	17.74	2.95	$17,426
Aug 1997	0	1,866	17.86	2.55	$4,767
Jul 1997	317	2,986	17.58	2.25	$12,282
Jun 1997	135	3,499	17.24	2.26	$10,225
May 1997	362	3,538	18.97	2.31	$15,035
Apr 1997	188	3,590	17.88	2.08	$10,839
Mar 1997	376	5,328	18.95	1.94	$17,457
Feb 1997	187	4,531	20.49	2.21	$13,827
Jan 1997	362	3,962	23.48	3.54	$22,524
Dec 1996	366	4,739	23.32	—	$8,535
Nov 1996	364	4,875	21.97	—	$7,997
Oct 1996	181	3,379	23.31	—	$4,219
Sep 1996	181	3,820	22.22	—	$4,022
Aug 1996	185	2,697	20.26	—	$3,748
Jul 1996	364	4,675	19.55	—	$7,116
Jun 1996	364	5,521	18.73	—	$6,818
May 1996	543	6,273	19.43	—	$10,550
Apr 1996	369	5,530	21.51	—	$7,937
Mar 1996	392	6,541	19.38	—	$7,597
Feb 1996	557	6,139	16.98	—	$9,458
Jan 1996	581	7,039	17.07	—	$9,918
Dec 1995	578	7,835	17.19	—	$9,936
Nov 1995	766	8,377	16.00	—	$12,256
Oct 1995	574	6,942	15.43	—	$8,857
Sep 1995	557	7,830	16.18	—	$9,012
Aug 1995	918	8,447	15.92	—	$14,615
Jul 1995	718	7,871	15.24	—	$10,942
Jun 1995	953	8,611	16.41	—	$15,639
May 1995	948	9,964	17.56	—	$16,647
Apr 1995	1,109	11,129	17.73	—	$19,663
Mar 1995	1,458	12,862	16.44	—	$23,970
Feb 1995	1,982	15,109	16.58	—	$32,862
Jan 1995	1,056	10,119	15.92	—	$16,812

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.

Jul 2016 — as filed, then multipliedworked

Oil                   98 bbl  × $ 41.62 =     $4,079
Casinghead gas         0 Mcf  × $  2.92 =         $0

────────────────────────────────────────────────────
Month total                                   $4,079

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. 03/O/22906 is the state's own key, not one this site invented.