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MULLINS "18-B"

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 34145District 08Field 33230001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$889 k
Apr 1994 – May 2026
Value, last 12 filed months
$34 k
at the published price for each month
Months reported
386
no gaps in the span
Streams
2
oil, casinghead gas

The FULLERTON 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 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
OilDisposition25,018 bbl$866,786
Casinghead gasProduction14,986 Mcf$22,308
Total$889,095

6,878 Mcf of this lease's gas, across 31 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 32.3304, -102.8224. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.33036, -102.82238 · 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
7,075 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 7,075 ft.

Completions filed
Apr 1994
1 of 1 wells

1 well

42-0033745017,075 ftApr 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 (386)

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

386 months

May 20261100106.413.05$11,705
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 2026177059.138.00$10,466
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 2025176066.743.32$11,746
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 2025177074.324.28$13,155
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 2024176075.632.06$13,311
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 202463084.451.66$5,320
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 2022177081.844.54$14,486
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 2020169038.772.71$6,552
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20170045.373.26$0
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20160046.193.09$0
Sep 20160041.553.10$0
Aug 20160041.442.92$0
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 20160042.521.99$0
Apr 20160036.561.99$0
Mar 20160033.011.79$0
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 20150038.792.17$0
Oct 20150043.552.43$0
Sep 20150042.992.76$0
Aug 20150040.162.87$0
Jul 20150048.152.95$0
Jun 20150056.152.88$0
May 20150055.212.96$0
Apr 20150049.822.71$0
Mar 20150042.892.93$0
Feb 20150044.662.98$0
Jan 20150043.433.10$0
Dec 20140054.693.59$0
Nov 20141070.464.25$70
Oct 20141078.303.90$78
Sep 20140086.164.05$0
Aug 20140089.394.04$0
Jul 20140096.564.18$0
Jun 2014180098.164.74$17,669
May 20140094.734.73$0
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20140097.406.19$0
Jan 20140090.404.86$0
Dec 20130091.824.35$0
Nov 2013179088.853.74$15,904
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 201300104.253.52$0
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 2013172093.964.28$16,161
Mar 20130093.623.91$0
Feb 20130091.233.42$0
Jan 20130091.603.42$0
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 2012180094.672.92$17,041
Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 2011179095.723.31$17,134
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20110083.404.15$0
Jul 20110094.144.52$0
Jun 2011176092.904.64$16,350
May 20110098.134.40$0
Apr 201110105.964.33$106
Mar 2011179096.364.06$17,248
Feb 20110085.644.18$0
Jan 20113086.504.59$260
Dec 2010181085.734.35$15,517
Nov 20100080.843.80$0
Oct 20100078.103.51$0
Sep 20100072.633.98$0
Aug 2010177073.684.42$13,041
Jul 20100072.554.74$0
Jun 20102070.364.91$141
May 2010180071.124.24$12,802
Apr 20102081.694.12$163
Mar 20100078.394.39$0
Feb 2010173073.585.44$12,729
Jan 20104074.365.96$297
Dec 20090071.445.48$0
Nov 2009179074.593.75$13,352
Oct 20090072.544.11$0
Sep 2009171065.543.06$11,207
Aug 20090067.423.22$0
Jul 20090061.133.46$0
Jun 2009177066.163.90$11,710
May 20090054.743.93$0
Apr 20090046.773.59$0
Mar 2009179042.144.06$7,543
Feb 20092032.814.63$66
Jan 20092035.865.37$72
Dec 2008174037.105.98$6,455
Nov 20080055.496.86$0
Oct 2008175075.246.92$13,167
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 200800131.0811.39$0
Jun 20081730131.3313.03$22,720
May 200800123.1711.57$0
Apr 20081690110.3110.45$18,642
Mar 200810101.909.66$102
Feb 20080092.538.77$0
Jan 2008351090.388.21$31,723
Dec 20070088.337.30$0
Nov 20070091.677.29$0
Oct 20072082.856.92$166
Sep 2007174075.846.24$13,196
Aug 20070069.066.39$0
Jul 2007175070.906.39$12,408
Jun 20070062.007.55$0
May 2007176058.747.85$10,338
Apr 20070059.617.81$0
Mar 20070056.927.30$0
Feb 20075055.108.22$276
Jan 2007183050.306.73$9,205
Dec 20063056.656.92$170
Nov 20060054.207.62$0
Oct 20061054.906.01$55
Sep 20060060.085.04$0
Aug 20060068.717.34$0
Jul 2006193069.376.34$13,388
Jun 20060066.286.38$0
May 20060066.016.42$0
Apr 2006194064.397.36$12,492
Mar 20061056.707.08$57
Feb 20060057.597.75$0
Jan 2006185060.598.93$11,209
Dec 20051054.9413.42$55
Nov 2005191054.6910.59$10,446
Oct 20050058.3413.80$0
Sep 20050061.4512.08$0
Aug 20050061.519.80$0
Jul 20050055.697.84$0
Jun 20050052.337.38$0
May 20050045.226.65$0
Apr 20050049.207.36$0
Mar 2005147050.377.15$7,404
Feb 20050045.226.31$0
Jan 20050043.166.32$0
Dec 2004176039.866.75$7,015
Nov 20044045.286.33$181
Oct 20040049.706.52$0
Sep 2004197043.245.28$8,518
Aug 2004197042.375.55$8,347
Jul 20040038.286.08$0
Jun 2004182036.106.43$6,570
May 20040037.486.49$0
Apr 20040034.475.86$0
Mar 2004186034.365.53$6,391
Feb 20040032.455.51$0
Jan 20042032.036.30$64
Dec 20030030.266.30$0
Nov 2003179028.804.60$5,155
Oct 20030028.174.76$0
Sep 20030026.314.75$0
Aug 2003176029.765.13$5,238
Jul 20037029.415.17$206
Jun 200389028.565.98$2,542
May 2003181026.595.97$4,813
Apr 20030026.675.41$0
Mar 2003198031.146.10$6,166
Feb 20030033.487.93$0
Jan 20030030.315.58$0
Dec 2002151026.914.85$4,063
Nov 2002176024.664.14$4,340
Oct 20020026.464.23$0
Sep 20020027.443.64$0
Aug 2002195025.963.16$5,062
Jul 20020024.583.06$0
Jun 2002186023.733.34$4,414
May 20020024.663.58$0
Apr 2002147023.653.51$3,477
Mar 2002196022.003.10$4,312
Feb 20020018.222.38$0
Jan 20020017.172.38$0
Dec 2001196016.932.36$3,318
Nov 20010018.072.41$0
Oct 2001196019.782.53$3,877
Sep 20010024.262.25$0
Aug 2001190024.873.05$4,725
Jul 20013023.933.20$72
Jun 20010024.563.82$0
May 2001194025.524.31$4,951
Apr 20010024.685.34$0
Mar 200118022224.545.38$5,611
Feb 20010027.755.77$0
Jan 2001188027.478.40$5,164
Dec 20000026.889.12$0
Nov 2000196032.215.66$6,313
Oct 20002031.235.15$62
Sep 2000165031.875.19$5,259
Aug 2000328029.644.54$1,360
Jul 200017534528.534.09$6,404
Jun 2000017329.304.40$761
May 200017921227.263.68$5,660
Apr 2000025324.513.12$788
Mar 200017327028.422.86$5,689
Feb 2000025527.622.73$695
Jan 200017927025.272.48$5,193
Dec 1999028124.282.42$681
Nov 199917027823.192.43$4,619
Oct 1999028720.982.80$805
Sep 199916427921.752.62$4,298
Aug 19991716419.262.88$3,478
Jul 1999429417.892.37$769
Jun 19991736915.942.36$2,921
May 199908215.792.32$190
Apr 19993338315.102.21$5,212
Mar 199909512.471.84$175
Feb 1999185889.981.82$2,006
Jan 1999010710.381.90$203
Dec 19980959.201.77$168
Nov 19981809010.892.19$2,157
Oct 199809712.421.97$191
Sep 199817911912.592.08$2,501
Aug 1998012211.301.91$233
Jul 199819812611.742.24$2,606
Jun 199817313111.242.24$2,238
May 199817914212.622.21$2,572
Apr 199818314113.042.51$2,740
Mar 1998116712.802.31$398
Feb 199834316013.952.30$5,153
Jan 1998010214.702.15$220
Dec 199735211616.322.41$6,024
Nov 1997015118.193.09$466
Oct 1997017019.253.15$535
Sep 199717518517.742.95$3,651
Aug 199735819917.862.55$6,902
Jul 1997020817.582.25$467
Jun 199734921417.242.26$6,500
May 199717423318.972.31$3,839
Apr 199717924817.882.08$3,717
Mar 199734329418.951.94$7,070
Feb 1997111020.492.21$263
Jan 199717320123.483.54$4,774
Dec 199618220723.32—$4,244
Nov 199618418821.97—$4,042
Oct 199617712423.31—$4,126
Sep 199606822.22—$0
Aug 199618222520.26—$3,687
Jul 199617924619.55—$3,499
Jun 199635227118.73—$6,593
May 199616515719.43—$3,206
Apr 199617125021.51—$3,678
Mar 199616721619.38—$3,236
Feb 19961779316.98—$3,005
Jan 1996340717.07—$5,804
Dec 19951811017.19—$3,111
Nov 19952483816.00—$3,968
Oct 19951751315.43—$2,700
Sep 1995179016.18—$2,896
Aug 1995316015.92—$5,031
Jul 19951792015.24—$2,728
Jun 19951631116.41—$2,675
May 199531923017.56—$5,602
Apr 199518419017.73—$3,262
Mar 199518714916.44—$3,074
Feb 199533817816.58—$5,604
Jan 199517413215.92—$2,770
Dec 199450310015.03—$7,560
Nov 199418114315.90—$2,878
Oct 199427813915.58—$4,331
Sep 199433534115.29—$5,122
Aug 199450652016.13—$8,162
Jul 199434953017.56—$6,128
Jun 199451249317.09—$8,750
May 19941,0721,58815.88—$17,023
Apr 19940114.14—$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                  110 bbl  × $106.41 =    $11,705
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $11,705

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/34145 is the state's own key, not one this site invented.