MUMME RANCH

Operated by VERDUN OIL EF II LLC (P-5 102886) in the EAGLEVILLE (EAGLE FORD-1) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15385District 01Field 27135700Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$153.1 M
Dec 2010 – May 2026
Value, last 12 filed months
$4.4 M
at the published price for each month
Months reported
186
no gaps in the span
Streams
2
oil, casinghead gas

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 5,086 leases and 10,995 wells, and the rule below applies to all of them.

Discovered
2009-08-12
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 40 acres. The field rule took effect on 2017-02-28.

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: BASED ON 3000 TO 1 GAS OIL RATIO

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.

StreamBasisVolumeValue
OilDisposition1,894,878 bbl$140,153,936
Casinghead gasProduction3,964,758 Mcf$12,903,471
Total$153,057,406

Wells on this lease (12)

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 28.4175, -99.0356. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.7 miles.

28.41335, -99.03601 · centre of the wells drawn, derived

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
0.0%
0 of 12 wells
With a plug date
0.0%
0 of 12 wells
Median depth
9,678 ft
12 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
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.
12100.0%

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

Total depth in feet, 12 of 12 wells. Median 9,678 ft, with the middle half between 9,667 and 9,736 ft; the shallowest is 9,651 ft and the deepest 9,774 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

Last completion by decade, 12 of 12 wells, Sep 2010 – Mar 2020. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 2010 – Mar 2020
12 of 12 wells

12 wells

42-28336537109H9,731 ftMar 2020
42-28336538110H9,669 ftMar 2020
42-28336539111H9,678 ftMar 2020
42-28336533108H9,662 ftMar 2020
42-2833228110H9,677 ftJan 2014
42-2833291141H9,668 ftJun 2013
42-2833292942H9,688 ftFeb 2012
42-2833290940H9,651 ftFeb 2012
42-2833241631H9,774 ftMay 2011
42-2833241530H9,752 ftMay 2011
42-2833241732H9,767 ftMay 2011
42-2833231012H9,661 ftSep 2010

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 (186)

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

186 months

May 20264,75715,231106.413.05$552,584
Apr 20264,88816,49298.932.87$530,897
Mar 20265,19911,80889.753.15$503,799
Feb 20264,3148,88963.503.75$307,276
Jan 20264,1497,50659.138.00$305,363
Dec 20254,2709,27656.664.41$282,877
Nov 20254,25610,47358.593.93$290,481
Oct 20254,60812,66459.383.30$315,476
Sep 20254,66911,13862.743.08$327,204
Aug 20253,98112,45763.933.01$292,060
Jul 20254,86814,43966.743.32$372,758
Jun 20254,86813,84666.483.13$366,945
May 20255,31913,32760.553.23$365,143
Apr 20255,49812,43262.363.54$386,903
Mar 20255,45913,21467.704.27$425,976
Feb 20254,86510,78270.884.34$391,634
Jan 20255,63515,38774.324.28$484,629
Dec 20245,34414,55568.993.12$414,114
Nov 20245,27917,06269.052.20$402,025
Oct 20246,42111,97171.372.28$485,577
Sep 20246,05614,92169.612.36$456,837
Aug 20246,80715,44175.632.06$546,678
Jul 20247,09814,47479.932.15$598,413
Jun 20247,13317,53578.082.63$603,131
May 20247,56218,39178.812.20$636,393
Apr 20248,20818,21384.451.66$723,385
Mar 20248,71618,69880.301.55$728,786
Feb 20248,66414,38776.091.78$684,905
Jan 202410,12920,36873.023.30$806,786
Dec 202311,12726,62371.262.61$862,415
Nov 202312,25724,38377.892.81$1,023,154
Oct 202314,00427,24585.443.09$1,280,615
Sep 202317,01234,64889.042.74$1,609,512
Aug 202320,23037,90580.522.67$1,730,235
Jul 202330,76115,15174.852.64$2,342,487
Jun 202324,31232,41768.962.26$1,749,769
May 202319,49317,88670.622.23$1,416,435
Apr 202310,9057,91078.122.24$869,599
Mar 20233,2127,80872.852.39$252,680
Feb 20236,3216,40775.112.47$490,568
Jan 20234,97510,92476.533.39$417,744
Dec 20224,2106,34376.415.73$358,026
Nov 20224,7317,15685.005.65$442,539
Oct 20225,1426,39587.185.86$485,778
Sep 20224,5937,19884.888.16$448,616
Aug 20224,8858,61094.529.13$540,315
Jul 20225,7809,234101.587.54$656,776
Jun 20226,3417,977115.097.98$793,420
May 20225,9249,748109.378.43$730,113
Apr 20225,1998,873104.226.84$602,510
Mar 20226,4459,757108.885.08$751,262
Feb 20225,6175,78091.054.86$539,512
Jan 20226,5365,99081.844.54$562,087
Dec 20216,8287,89971.323.90$517,772
Nov 20216,9385,03577.435.24$563,577
Oct 20217,0824,56479.795.71$591,151
Sep 20216,0396,44669.865.35$456,377
Aug 20218,0279,36366.024.22$569,460
Jul 20216,7437,37170.783.98$506,621
Jun 20217,8997,08969.493.38$572,867
May 20218,5588,56263.483.02$569,099
Apr 20218,8998,41160.362.76$560,345
Mar 20219,36112,02761.302.72$606,506
Feb 20218,84711,72157.805.55$576,384
Jan 202110,03514,21150.412.81$545,801
Dec 202011,16015,56944.642.68$539,837
Nov 202012,72217,25438.772.71$539,931
Oct 202013,40518,19136.972.48$540,668
Sep 202014,96522,65137.091.99$600,151
Aug 202020,24331,91039.982.39$885,424
Jul 202030,33758,72138.371.83$1,271,204
Jun 202029,61130,17934.901.69$1,084,436
May 202001,97816.921.81$3,590
Apr 202058,84851,22514.751.80$960,437
Mar 202012,40812,62230.341.86$399,888
Feb 20202,94012,20749.881.98$170,825
Jan 20202,8667,41157.252.09$179,603
Dec 20193,2058,80459.012.30$209,415
Nov 20193,96620,42155.302.75$275,492
Oct 20195,1714,61853.472.42$287,662
Sep 20193,2841,27655.052.66$184,175
Aug 20194,17410,82253.112.30$246,619
Jul 20193,7055,16356.272.46$221,182
Jun 20192,8705,01552.782.49$163,972
May 20191,2813,27558.482.74$83,887
Apr 20192,4033,22162.632.75$159,360
Mar 20192,8717,11756.803.06$184,866
Feb 20192,4295,21850.852.79$138,084
Jan 20192,2794,64746.033.23$119,904
Dec 20183,8145,84346.594.19$202,150
Nov 20182,7616,60452.934.24$174,122
Oct 20183,2416,09561.443.40$219,838
Sep 20184,9029,66259.543.11$321,895
Aug 20185,69510,79359.403.07$371,380
Jul 20185,06611,06265.142.93$362,432
Jun 20184,8417,73860.183.08$315,141
May 20183,4885,91465.382.90$245,201
Apr 20184,9095,78563.842.90$330,172
Mar 20183,4306,24461.222.79$227,386
Feb 20183,7908,24161.782.77$256,942
Jan 20184,93410,62562.874.01$352,800
Dec 20175,34510,23457.272.92$336,007
Nov 20173,8128,30855.423.12$237,168
Oct 20173,8529,91049.292.98$219,433
Sep 20174,12313,06047.523.09$236,245
Aug 20174,1138,11045.373.00$210,972
Jul 20173,51810,64343.873.09$187,193
Jun 20174,05910,67142.493.09$205,411
May 20174,76516,84645.373.26$271,163
Apr 20174,17313,88047.933.21$244,589
Mar 20174,46615,86346.772.98$256,205
Feb 20175,28813,90850.452.95$307,844
Jan 20175,98221,35449.413.42$368,576
Dec 20165,47221,09548.763.72$345,348
Nov 20166,20818,99642.492.64$314,010
Oct 20166,31518,93046.193.09$350,188
Sep 20167,09321,86641.553.10$362,513
Aug 20165,75118,26741.442.92$291,740
Jul 20165,64628,10541.622.92$317,175
Jun 20165,69825,38045.352.69$326,571
May 20166,27932,35442.521.99$331,401
Apr 20166,48627,36236.561.99$291,607
Mar 20168,53924,32533.011.79$325,512
Feb 20164,45220,44526.472.06$160,035
Jan 20165,52929,35527.352.36$220,624
Dec 20154,80925,16332.362.00$205,981
Nov 20155,34025,52938.792.17$262,468
Oct 20155,65427,05243.552.43$311,876
Sep 20155,45524,19642.992.76$301,253
Aug 20155,75620,13740.162.87$289,004
Jul 20156,01619,05848.152.95$345,798
Jun 20156,21323,02656.152.88$415,241
May 20156,61423,28455.212.96$433,974
Apr 20158,10820,32749.822.71$458,957
Mar 20157,91327,00242.892.93$418,632
Feb 20156,30716,25344.662.98$330,043
Jan 20156,73126,27043.433.10$373,781
Dec 20148,07433,05754.693.59$560,287
Nov 20144,94518,18570.464.25$425,744
Oct 20147,78121,87478.303.90$694,582
Sep 20147,91724,85986.164.05$782,694
Aug 20148,88324,73689.394.04$893,864
Jul 20147,14124,64496.564.18$792,537
Jun 20148,56026,47598.164.74$965,659
May 20149,01735,41394.734.73$1,021,562
Apr 20148,50028,16295.944.81$950,924
Mar 201410,64724,42795.895.06$1,144,463
Feb 201410,09515,63797.406.19$1,080,077
Jan 20148,97919,60790.404.86$907,006
Dec 20139,32321,11191.824.35$947,965
Nov 201310,72426,49088.853.74$1,051,854
Oct 20138,08526,60497.423.78$888,187
Sep 201310,14128,507104.113.72$1,161,761
Aug 20138,25124,533104.253.52$946,587
Jul 201312,52030,405102.523.72$1,396,588
Jun 20139,47526,20694.403.93$997,519
May 20134,50819,12994.834.15$506,861
Apr 201313,92538,99393.964.28$1,475,384
Mar 201314,83834,00293.623.91$1,522,179
Feb 201312,63728,95391.233.42$1,251,890
Jan 201317,26243,89191.603.42$1,731,302
Dec 201219,10843,97886.773.42$1,808,413
Nov 201221,37054,89686.953.62$2,057,117
Oct 201223,21163,04589.383.40$2,288,932
Sep 201225,78870,54394.672.92$2,647,223
Aug 201231,95681,52592.662.91$3,198,131
Jul 201235,64472,36385.133.02$3,252,968
Jun 201243,67672,23179.822.52$3,668,171
May 201249,33166,54491.612.49$4,684,796
Apr 201245,57768,759101.652.00$4,770,200
Mar 201217,22941,067105.052.22$1,901,161
Feb 201219,92249,856101.102.57$2,142,256
Jan 201225,83956,73698.092.73$2,689,668
Dec 201127,67964,81796.873.24$2,891,255
Nov 201123,30360,66995.723.31$2,431,455
Oct 201128,46361,76584.983.65$2,644,138
Sep 201145,02773,24783.623.99$4,057,106
Aug 201149,67275,26883.404.15$4,454,956
Jul 201110,46621,57794.144.52$1,082,738
Jun 201110,02416,26992.904.64$1,006,716
May 201112,47624,51898.134.40$1,332,267
Apr 201114,33324,507105.964.33$1,624,920
Mar 201113,43720,86796.364.06$1,379,454
Feb 201118,07230,02785.644.18$1,673,198
Jan 201116,42329,78986.504.59$1,557,285
Dec 201030,44252,86685.734.35$2,839,641

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                4,757 bbl  × $106.41 =   $506,192
Casinghead gas    15,231 Mcf  × $  3.05 =    $46,391

────────────────────────────────────────────────────
Month total                                 $552,584

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/15385 is the state's own key, not one this site invented.