MULLINS "18-A"

Operated by SIMATA ENERGY, LLC (P-5 781975) in the FULLERTON field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 34123District 08Field 33230001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$3.7 M
Mar 1994 – May 2026
Value, last 12 filed months
$231 k
at the published price for each month
Months reported
387
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 165 leases and 2,135 wells, and the rule below applies to all of them.

Discovered
1941-12-23
as the register files it
Field class
Oil
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 10 acres. The field rule took effect on 2010-06-09.

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: BLANCO-FULLERTON D WELLS 13 D, 15D, 16D & 17D. 08/3/21

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
OilDisposition76,902 bbl$3,705,064
Casinghead gasProduction20,441 Mcf$5,654
Total$3,710,717

18,183 Mcf of this lease's gas, across 34 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 32.3279, -102.8171. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.32786, -102.81711 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
7,160 ft
1 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.
1100.0%

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 7,160 ft.

Completions filed
Mar 1994
1 of 1 wells

1 well

42-0033743517,160 ftMar 1994

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 (387)

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

387 months

May 20263540106.413.05$37,669
Apr 2026179098.932.87$17,708
Mar 2026354089.753.15$31,772
Feb 2026175063.503.75$11,113
Jan 2026538059.138.00$31,812
Dec 20250056.664.41$0
Nov 2025357058.593.93$20,917
Oct 20250059.383.30$0
Sep 2025348062.743.08$21,834
Aug 2025356063.933.01$22,759
Jul 2025180066.743.32$12,013
Jun 2025357066.483.13$23,733
May 2025359060.553.23$21,737
Apr 2025176062.363.54$10,975
Mar 2025355067.704.27$24,034
Feb 2025179070.884.34$12,688
Jan 2025178074.324.28$13,229
Dec 2024354068.993.12$24,422
Nov 2024177069.052.20$12,222
Oct 2024358071.372.28$25,550
Sep 2024357069.612.36$24,851
Aug 2024180075.632.06$13,613
Jul 2024356079.932.15$28,455
Jun 2024356078.082.63$27,796
May 2024179078.812.20$14,107
Apr 2024359084.451.66$30,318
Mar 2024359080.301.55$28,828
Feb 2024180076.091.78$13,696
Jan 2024358073.023.30$26,141
Dec 2023179071.262.61$12,756
Nov 2023358077.892.81$27,885
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 2023180080.522.67$14,494
Jul 20230074.852.64$0
Jun 2023178068.962.26$12,275
May 20230070.622.23$0
Apr 2023176078.122.24$13,749
Mar 2023179072.852.39$13,040
Feb 2023184075.112.47$13,820
Jan 20230076.533.39$0
Dec 2022180076.415.73$13,754
Nov 20220085.005.65$0
Oct 2022180087.185.86$15,692
Sep 2022177084.888.16$15,024
Aug 20220094.529.13$0
Jul 20221780101.587.54$18,081
Jun 20221780115.097.98$20,486
May 202200109.378.43$0
Apr 20221720104.226.84$17,926
Mar 20221790108.885.08$19,490
Feb 2022176091.054.86$16,025
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 2021173077.435.24$13,395
Oct 20210079.795.71$0
Sep 2021178069.865.35$12,435
Aug 2021177066.024.22$11,686
Jul 20210070.783.98$0
Jun 2021175069.493.38$12,161
May 20210063.483.02$0
Apr 2021177060.362.76$10,684
Mar 2021179061.302.72$10,973
Feb 20210057.805.55$0
Jan 2021178050.412.81$8,973
Dec 2020178044.642.68$7,946
Nov 2020175038.772.71$6,785
Oct 20200036.972.48$0
Sep 2020177037.091.99$6,565
Aug 2020193039.982.39$7,716
Jul 2020177038.371.83$6,791
Jun 2020356034.901.69$12,424
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 2020179030.341.86$5,431
Feb 2020180049.881.98$8,978
Jan 2020179057.252.09$10,248
Dec 2019177059.012.30$10,445
Nov 2019177055.302.75$9,788
Oct 2019178053.472.42$9,518
Sep 2019177055.052.66$9,744
Aug 2019174053.112.30$9,241
Jul 2019177056.272.46$9,960
Jun 20190052.782.49$0
May 2019179058.482.74$10,468
Apr 2019350062.632.75$21,921
Mar 2019171056.803.06$9,713
Feb 2019172050.852.79$8,746
Jan 2019181046.033.23$8,331
Dec 2018180046.594.19$8,386
Nov 2018361052.934.24$19,108
Oct 20180061.443.40$0
Sep 2018362059.543.11$21,553
Aug 2018180059.403.07$10,692
Jul 2018178065.142.93$11,595
Jun 2018177060.183.08$10,652
May 2018354065.382.90$23,145
Apr 2018180063.842.90$11,491
Mar 2018179061.222.79$10,958
Feb 2018179061.782.77$11,059
Jan 2018362062.874.01$22,759
Dec 2017178057.272.92$10,194
Nov 2017180055.423.12$9,976
Oct 2017359049.292.98$17,695
Sep 2017177047.523.09$8,411
Aug 2017351045.373.00$15,925
Jul 2017178043.873.09$7,809
Jun 2017356042.493.09$15,126
May 2017175045.373.26$7,940
Apr 2017178047.933.21$8,532
Mar 2017360046.772.98$16,837
Feb 2017360050.452.95$18,162
Jan 20170049.413.42$0
Dec 2016358048.763.72$17,456
Nov 2016178042.492.64$7,563
Oct 2016354046.193.09$16,351
Sep 2016358041.553.10$14,875
Aug 2016178041.442.92$7,376
Jul 2016178041.622.92$7,408
Jun 2016354045.352.69$16,054
May 2016357042.521.99$15,180
Apr 2016178036.561.99$6,508
Mar 2016545033.011.79$17,990
Feb 2016358026.472.06$9,476
Jan 2016356027.352.36$9,737
Dec 20150032.362.00$0
Nov 2015179038.792.17$6,943
Oct 20150043.552.43$0
Sep 2015358042.992.76$15,390
Aug 2015180040.162.87$7,229
Jul 2015541048.152.95$26,049
Jun 2015179056.152.88$10,051
May 2015181055.212.96$9,993
Apr 2015361049.822.71$17,985
Mar 2015372042.892.93$15,955
Feb 2015369044.662.98$16,480
Jan 2015362043.433.10$15,722
Dec 2014369054.693.59$20,181
Nov 20140070.464.25$0
Oct 2014182078.303.90$14,251
Sep 2014362086.164.05$31,190
Aug 2014364089.394.04$32,538
Jul 2014367096.564.18$35,438
Jun 2014360098.164.74$35,338
May 2014181094.734.73$17,146
Apr 2014364095.944.81$34,922
Mar 2014366095.895.06$35,096
Feb 2014180097.406.19$17,532
Jan 2014364090.404.86$32,906
Dec 2013182091.824.35$16,711
Nov 2013368088.853.74$32,697
Oct 2013180097.423.78$17,536
Sep 20133660104.113.72$38,104
Aug 20133640104.253.52$37,947
Jul 20131820102.523.72$18,659
Jun 2013541094.403.93$51,070
May 2013361094.834.15$34,234
Apr 2013532093.964.28$49,987
Mar 2013539093.623.91$50,461
Feb 2013353091.233.42$32,204
Jan 20130091.603.42$0
Dec 2012358086.773.42$31,064
Nov 20120086.953.62$0
Oct 2012181089.383.40$16,178
Sep 2012183094.672.92$17,325
Aug 2012364092.662.91$33,728
Jul 2012359085.133.02$30,562
Jun 2012362079.822.52$28,895
May 2012364091.612.49$33,346
Apr 20127210101.652.00$73,290
Mar 201200105.052.22$0
Feb 20123620101.102.57$36,598
Jan 2012181098.092.73$17,754
Dec 20110096.873.24$0
Nov 2011363095.723.31$34,746
Oct 2011360084.983.65$30,593
Sep 2011320083.623.99$26,758
Aug 2011356083.404.15$29,690
Jul 2011177094.144.52$16,663
Jun 2011354092.904.64$32,887
May 2011370098.134.40$36,308
Apr 2011100105.964.33$1,060
Mar 20115096.364.06$482
Feb 20113085.644.18$257
Jan 20118086.504.59$692
Dec 20101085.734.35$86
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 20100073.684.42$0
Jul 20101072.554.74$73
Jun 20100070.364.91$0
May 20101071.124.24$71
Apr 201010081.694.12$817
Mar 20100078.394.39$0
Feb 20100073.585.44$0
Jan 20104074.365.96$297
Dec 20090071.445.48$0
Nov 20090074.593.75$0
Oct 20090072.544.11$0
Sep 20090065.543.06$0
Aug 20092067.423.22$135
Jul 20090061.133.46$0
Jun 20090066.163.90$0
May 20091054.743.93$55
Apr 20090046.773.59$0
Mar 20096042.144.06$253
Feb 20094032.814.63$131
Jan 20094035.865.37$143
Dec 20084037.105.98$148
Nov 2008182055.496.86$10,099
Oct 20081075.246.92$75
Sep 200830101.767.88$305
Aug 20081530114.228.48$17,476
Jul 200840131.0811.39$524
Jun 20081810131.3313.03$23,771
May 20081780123.1711.57$21,924
Apr 200840110.3110.45$441
Mar 200800101.909.66$0
Feb 20088092.538.77$740
Jan 2008175090.388.21$15,817
Dec 20075088.337.30$442
Nov 20073091.677.29$275
Oct 2007183082.856.92$15,162
Sep 20073075.846.24$228
Aug 2007173069.066.39$11,947
Jul 2007177070.906.39$12,549
Jun 20074062.007.55$248
May 20072058.747.85$117
Apr 20073059.617.81$179
Mar 20071056.927.30$57
Feb 2007190055.108.22$10,469
Jan 20072050.306.73$101
Dec 20060056.656.92$0
Nov 20064054.207.62$217
Oct 200612054.906.01$659
Sep 20060060.085.04$0
Aug 200610068.717.34$687
Jul 2006166069.376.34$11,515
Jun 20060066.286.38$0
May 20067066.016.42$462
Apr 20062064.397.36$129
Mar 20062056.707.08$113
Feb 2006177057.597.75$10,193
Jan 20065060.598.93$303
Dec 20054054.9413.42$220
Nov 200555054.6910.59$3,008
Oct 2005194058.3413.80$11,318
Sep 20054061.4512.08$246
Aug 20051061.519.80$62
Jul 20054055.697.84$223
Jun 2005119052.337.38$6,227
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005193050.377.15$9,721
Feb 20053045.226.31$136
Jan 20056043.166.32$259
Dec 2004169039.866.75$6,736
Nov 200411045.286.33$498
Oct 20045049.706.52$249
Sep 200415043.245.28$649
Aug 2004198042.375.55$8,389
Jul 20049038.286.08$345
Jun 200410036.106.43$361
May 20049037.486.49$337
Apr 200477034.475.86$2,654
Mar 2004195034.365.53$6,700
Feb 200410032.455.51$325
Jan 2004184032.036.30$5,894
Dec 20036030.266.30$182
Nov 20030028.804.60$0
Oct 20035028.174.76$141
Sep 2003239026.314.75$6,288
Aug 200318029.765.13$536
Jul 200316029.415.17$471
Jun 2003109028.565.98$3,113
May 20033026.595.97$80
Apr 2003209026.675.41$5,574
Mar 200316031.146.10$498
Feb 2003174033.487.93$5,826
Jan 20030030.315.58$0
Dec 2002199026.914.85$5,355
Nov 200211024.664.14$271
Oct 2002185026.464.23$4,895
Sep 20020027.443.64$0
Aug 2002196025.963.16$5,088
Jul 20028024.583.06$197
Jun 2002190023.733.34$4,509
May 2002200024.663.58$4,932
Apr 20020023.653.51$0
Mar 2002197022.003.10$4,334
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 2001166016.932.36$2,810
Nov 2001178018.072.41$3,216
Oct 2001200019.782.53$3,956
Sep 20010024.262.25$0
Aug 20010024.873.05$0
Jul 2001187023.933.20$4,475
Jun 20019024.563.82$221
May 2001183025.524.31$4,670
Apr 20010024.685.34$0
Mar 2001191024.545.38$4,687
Feb 20010027.755.77$0
Jan 2001172027.478.40$4,725
Dec 2000191026.889.12$5,134
Nov 20007032.215.66$225
Oct 2000184031.235.15$5,746
Sep 20001031.875.19$32
Aug 2000201029.644.54$5,958
Jul 20001028.534.09$29
Jun 2000169029.304.40$4,952
May 2000190027.263.68$5,179
Apr 20000024.513.12$0
Mar 2000172028.422.86$4,888
Feb 20004027.622.73$110
Jan 2000189025.272.48$4,776
Dec 1999179024.282.42$4,346
Nov 19990023.192.43$0
Oct 1999178020.982.80$3,734
Sep 1999181021.752.62$3,937
Aug 19990019.262.88$0
Jul 1999172017.892.37$3,077
Jun 19994015.942.36$64
May 19991015.792.32$16
Apr 1999177015.102.21$2,673
Mar 1999179012.471.84$2,232
Feb 199918209.981.82$1,816
Jan 19990010.381.90$0
Dec 199817509.201.77$1,610
Nov 19983010.892.19$33
Oct 1998192012.421.97$2,385
Sep 19983012.592.08$38
Aug 19980011.301.91$0
Jul 1998185011.742.24$2,172
Jun 1998161011.242.24$1,810
May 19981696912.622.21$2,285
Apr 19981707113.042.51$2,395
Mar 199835612.802.31$168
Feb 19981737013.952.30$2,574
Jan 199835810514.702.15$5,489
Dec 199708516.322.41$205
Nov 1997012618.193.09$389
Oct 199718010319.253.15$3,789
Sep 199735217317.742.95$6,756
Aug 1997111217.862.55$304
Jul 199717714617.582.25$3,440
Jun 199717516617.242.26$3,392
May 199718014918.972.31$3,759
Apr 199716919617.882.08$3,430
Mar 199717821418.951.94$3,788
Feb 199733719120.492.21$7,326
Jan 199717722623.483.54$4,956
Dec 199635018123.32$8,162
Nov 19961718021.97$373
Oct 199634523023.31$8,042
Sep 199617420022.22$3,866
Aug 1996371320.26$7,516
Jul 19961882719.55$3,675
Jun 199633828718.73$6,331
May 199638236219.43$7,422
Apr 199652437921.51$11,271
Mar 199618640819.38$3,605
Feb 199631942316.98$5,417
Jan 199652036617.07$8,876
Dec 199530741817.19$5,277
Nov 199554943416.00$8,784
Oct 199552044915.43$8,024
Sep 199534147016.18$5,517
Aug 199568947315.92$10,969
Jul 199536247915.24$5,517
Jun 199571357416.41$11,700
May 199569951317.56$12,274
Apr 199536847017.73$6,525
Mar 199590662416.44$14,895
Feb 199555559916.58$9,202
Jan 199574770415.92$11,892
Dec 19941,06278815.03$15,962
Nov 199489987615.90$14,294
Oct 19941,25459415.58$19,537
Sep 19941,0401,08415.29$15,902
Aug 19941,4211,23416.13$22,921
Jul 19941,1481,23217.56$20,159
Jun 19941,4281,32017.09$24,405
May 19941,7411,48215.88$27,647
Apr 19941,97731914.14$27,955
Mar 19940112.46$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 2026 — as filed, then multipliedworked
Oil                  354 bbl  × $106.41 =    $37,669
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $37,669

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/34123 is the state's own key, not one this site invented.