STUMBERG RANCH-MORMAC

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

Operated by KERNS PETROLEUM, INC. (P-5 457740) in the STUMBERG (OLMOS 4150) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 5987District 01Field 86812500NGPA filingOilCasinghead gasSave Export

Value, all time

$339 k

Jan 1993 – Jul 2011

Value, last 12 filed months

$4 k

at the published price for each month

Months reported

223

no gaps in the span

Streams

oil, casinghead gas

The STUMBERG (OLMOS 4150) 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 10 leases and 20 wells, and the rule below applies to all of them.

Discovered

1979-09-22

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: “ALLOCATION FORMULA EFF. 110181 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	3	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
Oil	Disposition	11,441 bbl	$229,952
Casinghead gas	Production	48,703 Mcf	$109,500
Total			$339,452

18,207 Mcf of this lease's gas, across 33 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 (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 28.4240, -99.6578. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

28.42375, -99.65695 · 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%

3 of 3 wells

With a plug date

100.0%

3 of 3 wells

Median depth

4,560 ft

3 wells filed one

Completion to plug

29.8 years

median over 3 wells

What the state filed about each well

On the RRC proration schedule

3100.0%

A plug date is filed

3100.0%

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

3100.0%

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

Between 4,550 and 4,560 ft, median 4,560 ft, over the 3 wells that filed a depth.

Completions filed

Sep 1979 – Nov 1979

3 of 3 wells

Plug dates filed

Jul 2009 – Nov 2011

3 of 3 wells

Last completion to plug: a median of 29.8 years across the 3 wells that filed both dates, with the middle half between 29.8 years and 31.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

3 wells


42-12731868	3	4,560 ft	Nov 1979	Jul 2009	Yes
42-12731867	2	4,550 ft	Oct 1979	Aug 2009	Yes
42-12731854	1	4,560 ft	Sep 1979	Nov 2011	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 (223)

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

223 months


Jul 2011	0	0	94.14	4.52	$0
Jun 2011	0	0	92.90	4.64	$0
May 2011	44	0	98.13	4.40	$4,318
Apr 2011	0	0	105.96	4.33	$0
Mar 2011	0	0	96.36	4.06	$0
Feb 2011	0	0	85.64	4.18	$0
Jan 2011	0	0	86.50	4.59	$0
Dec 2010	0	0	85.73	4.35	$0
Nov 2010	0	0	80.84	3.80	$0
Oct 2010	0	0	78.10	3.51	$0
Sep 2010	0	0	72.63	3.98	$0
Aug 2010	0	0	73.68	4.42	$0
Jul 2010	0	0	72.55	4.74	$0
Jun 2010	0	0	70.36	4.91	$0
May 2010	0	0	71.12	4.24	$0
Apr 2010	0	0	81.69	4.12	$0
Mar 2010	0	0	78.39	4.39	$0
Feb 2010	0	0	73.58	5.44	$0
Jan 2010	0	0	74.36	5.96	$0
Dec 2009	0	0	71.44	5.48	$0
Nov 2009	0	0	74.59	3.75	$0
Oct 2009	0	0	72.54	4.11	$0
Sep 2009	0	0	65.54	3.06	$0
Aug 2009	0	0	67.42	3.22	$0
Jul 2009	0	0	61.13	3.46	$0
Jun 2009	0	0	66.16	3.90	$0
May 2009	0	0	54.74	3.93	$0
Apr 2009	0	0	46.77	3.59	$0
Mar 2009	0	0	42.14	4.06	$0
Feb 2009	0	0	32.81	4.63	$0
Jan 2009	0	0	35.86	5.37	$0
Dec 2008	0	0	37.10	5.98	$0
Nov 2008	0	0	55.49	6.86	$0
Oct 2008	0	0	75.24	6.92	$0
Sep 2008	0	0	101.76	7.88	$0
Aug 2008	0	0	114.22	8.48	$0
Jul 2008	0	0	131.08	11.39	$0
Jun 2008	0	0	131.33	13.03	$0
May 2008	0	0	123.17	11.57	$0
Apr 2008	0	0	110.31	10.45	$0
Mar 2008	0	0	101.90	9.66	$0
Feb 2008	0	0	92.53	8.77	$0
Jan 2008	0	0	90.38	8.21	$0
Dec 2007	0	0	88.33	7.30	$0
Nov 2007	0	0	91.67	7.29	$0
Oct 2007	0	0	82.85	6.92	$0
Sep 2007	0	0	75.84	6.24	$0
Aug 2007	0	0	69.06	6.39	$0
Jul 2007	0	0	70.90	6.39	$0
Jun 2007	0	0	62.00	7.55	$0
May 2007	0	0	58.74	7.85	$0
Apr 2007	0	0	59.61	7.81	$0
Mar 2007	0	0	56.92	7.30	$0
Feb 2007	0	0	55.10	8.22	$0
Jan 2007	0	0	50.30	6.73	$0
Dec 2006	0	0	56.65	6.92	$0
Nov 2006	0	0	54.20	7.62	$0
Oct 2006	0	0	54.90	6.01	$0
Sep 2006	0	0	60.08	5.04	$0
Aug 2006	0	109	68.71	7.34	$800
Jul 2006	0	104	69.37	6.34	$660
Jun 2006	0	98	66.28	6.38	$626
May 2006	0	88	66.01	6.42	$565
Apr 2006	0	88	64.39	7.36	$648
Mar 2006	49	90	56.70	7.08	$3,416
Feb 2006	0	79	57.59	7.75	$612
Jan 2006	0	78	60.59	8.93	$697
Dec 2005	0	79	54.94	13.42	$1,060
Nov 2005	0	82	54.69	10.59	$868
Oct 2005	0	100	58.34	13.80	$1,380
Sep 2005	0	105	61.45	12.08	$1,268
Aug 2005	13	105	61.51	9.80	$1,828
Jul 2005	0	97	55.69	7.84	$761
Jun 2005	0	128	52.33	7.38	$945
May 2005	0	88	45.22	6.65	$585
Apr 2005	53	103	49.20	7.36	$3,366
Mar 2005	0	105	50.37	7.15	$751
Feb 2005	0	98	45.22	6.31	$619
Jan 2005	0	97	43.16	6.32	$613
Dec 2004	0	168	39.86	6.75	$1,134
Nov 2004	0	0	45.28	6.33	$0
Oct 2004	0	0	49.70	6.52	$0
Sep 2004	62	9	43.24	5.28	$2,728
Aug 2004	0	2	42.37	5.55	$11
Jul 2004	0	32	38.28	6.08	$195
Jun 2004	0	74	36.10	6.43	$476
May 2004	0	144	37.48	6.49	$935
Apr 2004	0	154	34.47	5.86	$902
Mar 2004	0	119	34.36	5.53	$658
Feb 2004	104	40	32.45	5.51	$3,595
Jan 2004	0	43	32.03	6.30	$271
Dec 2003	0	42	30.26	6.30	$265
Nov 2003	0	88	28.80	4.60	$404
Oct 2003	81	113	28.17	4.76	$2,820
Sep 2003	0	159	26.31	4.75	$755
Aug 2003	0	116	29.76	5.13	$595
Jul 2003	80	151	29.41	5.17	$3,134
Jun 2003	0	30	28.56	5.98	$179
May 2003	0	2	26.59	5.97	$12
Apr 2003	0	0	26.67	5.41	$0
Mar 2003	82	19	31.14	6.10	$2,669
Feb 2003	0	0	33.48	7.93	$0
Jan 2003	0	0	30.31	5.58	$0
Dec 2002	0	0	26.91	4.85	$0
Nov 2002	0	0	24.66	4.14	$0
Oct 2002	0	0	26.46	4.23	$0
Sep 2002	0	0	27.44	3.64	$0
Aug 2002	0	143	25.96	3.16	$452
Jul 2002	0	189	24.58	3.06	$579
Jun 2002	0	270	23.73	3.34	$901
May 2002	0	119	24.66	3.58	$427
Apr 2002	104	216	23.65	3.51	$3,218
Mar 2002	0	77	22.00	3.10	$239
Feb 2002	0	0	18.22	2.38	$0
Jan 2002	0	108	17.17	2.38	$257
Dec 2001	0	0	16.93	2.36	$0
Nov 2001	0	8	18.07	2.41	$19
Oct 2001	0	255	19.78	2.53	$645
Sep 2001	0	171	24.26	2.25	$385
Aug 2001	0	0	24.87	3.05	$0
Jul 2001	84	367	23.93	3.20	$3,183
Jun 2001	0	381	24.56	3.82	$1,457
May 2001	144	75	25.52	4.31	$3,998
Apr 2001	0	374	24.68	5.34	$1,995
Mar 2001	150	480	24.54	5.38	$6,262
Feb 2001	151	408	27.75	5.77	$6,543
Jan 2001	0	467	27.47	8.40	$3,922
Dec 2000	146	416	26.88	9.12	$7,719
Nov 2000	0	494	32.21	5.66	$2,795
Oct 2000	125	422	31.23	5.15	$6,075
Sep 2000	0	617	31.87	5.19	$3,200
Aug 2000	138	626	29.64	4.54	$6,933
Jul 2000	0	632	28.53	4.09	$2,585
Jun 2000	136	625	29.30	4.40	$6,733
May 2000	197	681	27.26	3.68	$7,876
Apr 2000	0	605	24.51	3.12	$1,885
Mar 2000	84	579	28.42	2.86	$4,043
Feb 2000	127	425	27.62	2.73	$4,667
Jan 2000	127	438	25.27	2.48	$4,296
Dec 1999	115	532	24.28	2.42	$4,082
Nov 1999	186	469	23.19	2.43	$5,455
Oct 1999	0	556	20.98	2.80	$1,559
Sep 1999	154	452	21.75	2.62	$4,533
Aug 1999	103	385	19.26	2.88	$3,091
Jul 1999	0	427	17.89	2.37	$1,013
Jun 1999	0	407	15.94	2.36	$961
May 1999	30	251	15.79	2.32	$1,056
Apr 1999	84	391	15.10	2.21	$2,132
Mar 1999	99	479	12.47	1.84	$2,115
Feb 1999	99	399	9.98	1.82	$1,713
Jan 1999	0	432	10.38	1.90	$821
Dec 1998	137	505	9.20	1.77	$2,156
Nov 1998	0	501	10.89	2.19	$1,095
Oct 1998	0	709	12.42	1.97	$1,396
Sep 1998	83	726	12.59	2.08	$2,557
Aug 1998	79	436	11.30	1.91	$1,724
Jul 1998	70	629	11.74	2.24	$2,229
Jun 1998	0	353	11.24	2.24	$790
May 1998	69	492	12.62	2.21	$1,956
Apr 1998	74	459	13.04	2.51	$2,115
Mar 1998	68	456	12.80	2.31	$1,924
Feb 1998	74	421	13.95	2.30	$2,000
Jan 1998	66	345	14.70	2.15	$1,714
Dec 1997	64	311	16.32	2.41	$1,794
Nov 1997	34	151	18.19	3.09	$1,085
Oct 1997	97	281	19.25	3.15	$2,752
Sep 1997	0	362	17.74	2.95	$1,070
Aug 1997	67	409	17.86	2.55	$2,242
Jul 1997	135	403	17.58	2.25	$3,279
Jun 1997	0	318	17.24	2.26	$718
May 1997	98	389	18.97	2.31	$2,757
Apr 1997	119	325	17.88	2.08	$2,805
Mar 1997	130	806	18.95	1.94	$4,026
Feb 1997	194	663	20.49	2.21	$5,438
Jan 1997	163	772	23.48	3.54	$6,560
Dec 1996	188	640	23.32	—	$4,384
Nov 1996	151	750	21.97	—	$3,317
Oct 1996	149	908	23.31	—	$3,473
Sep 1996	230	801	22.22	—	$5,111
Aug 1996	125	819	20.26	—	$2,533
Jul 1996	233	869	19.55	—	$4,555
Jun 1996	141	875	18.73	—	$2,641
May 1996	158	725	19.43	—	$3,070
Apr 1996	270	811	21.51	—	$5,808
Mar 1996	131	633	19.38	—	$2,539
Feb 1996	278	1,013	16.98	—	$4,720
Jan 1996	238	849	17.07	—	$4,063
Dec 1995	158	927	17.19	—	$2,716
Nov 1995	162	921	16.00	—	$2,592
Oct 1995	337	1,115	15.43	—	$5,200
Sep 1995	356	1,088	16.18	—	$5,760
Aug 1995	367	957	15.92	—	$5,843
Jul 1995	352	598	15.24	—	$5,364
Jun 1995	0	1,214	16.41	—	$0
May 1995	319	890	17.56	—	$5,602
Apr 1995	336	792	17.73	—	$5,957
Mar 1995	79	0	16.44	—	$1,299
Feb 1995	177	0	16.58	—	$2,935
Jan 1995	0	0	15.92	—	$0
Dec 1994	0	1	15.03	—	$0
Nov 1994	499	1	15.90	—	$7,934
Oct 1994	0	1	15.58	—	$0
Sep 1994	512	1	15.29	—	$7,828
Aug 1994	0	1	16.13	—	$0
Jul 1994	201	1	17.56	—	$3,530
Jun 1994	0	1	17.09	—	$0
May 1994	0	1	15.88	—	$0
Apr 1994	322	1	14.14	—	$4,553
Mar 1994	0	1	12.46	—	$0
Feb 1994	0	1	12.50	—	$0
Jan 1994	0	0	12.66	—	$0
Dec 1993	0	0	12.33	—	$0
Nov 1993	0	0	14.49	—	$0
Oct 1993	0	0	15.85	—	$0
Sep 1993	0	0	15.03	—	$0
Aug 1993	0	0	15.66	—	$0
Jul 1993	0	0	15.46	—	$0
Jun 1993	0	0	16.79	—	$0
May 1993	0	0	17.68	—	$0
Apr 1993	0	0	18.05	—	$0
Mar 1993	0	1	18.14	—	$0
Feb 1993	0	0	17.90	—	$0
Jan 1993	0	0	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 2011 — as filed, then multipliedworked

Oil                   44 bbl  × $ 98.13 =     $4,318
Casinghead gas         0 Mcf  × $  4.40 =         $0

────────────────────────────────────────────────────
Month total                                   $4,318

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. 01/O/5987 is the state's own key, not one this site invented.