WORTHAM

Operated by OLSEN ENERGY INC. (P-5 621750) in the MCELROY field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 4156District 08Field 59337001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$2.0 M
Jan 1993 – May 2026
Value, last 12 filed months
$16 k
at the published price for each month
Months reported
401
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 114 leases and 4,417 wells, and the rule below applies to all of them.

Discovered
1941-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

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: WAS STATED AS THE GRAYBURG SAN ANDRES DOLOMITE AT 3000FT.

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.

ProgrammeFilingsWith an approval dateDatedDocket
NGPA1none

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.

StreamBasisVolumeValue
OilDisposition60,685 bbl$1,995,086
Casinghead gasProduction3,223 Mcf$2,637
Total$1,997,723

2,139 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 (6)

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 31.4288, -102.3634. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.4 miles.

31.43018, -102.36307 · 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
83.3%
5 of 6 wells
With a plug date
83.3%
5 of 6 wells
Median depth
3,140 ft
5 wells filed one
Completion to plug
20 months
median over 3 wells

What the state filed about each well

On the RRC proration schedule
583.3%
A plug date is filed
583.3%
BothOn the schedule and plugged. Neither fact cancels the other.
583.3%
NeitherNo plug date, and not on the schedule.
116.7%

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 3,100 and 3,275 ft, median 3,140 ft, over the 5 wells that filed a depth.

Completions filed
Apr 1984 – Oct 1993
3 of 6 wells; 3 filed none
Plug dates filed
Jan 1987 – Feb 2017
5 of 6 wells; 1 filed none

Last completion to plug: a median of 20 months across the 3 wells that filed both dates, with the middle half between 15 months and 5.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-1030479013,275 ftSep 1992Yes
42-1030545633,109 ftFeb 2017Yes
42-103054466
42-1030544743,100 ftOct 1993Jun 1995Yes
42-1030544553,140 ftApr 1986Jan 1987Yes
42-1033335173,225 ftApr 1984Sep 1992Yes

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 (401)

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

401 months

May 20261550106.413.05$16,494
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
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 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 2025186062.363.54$11,599
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 2025152074.324.28$11,297
Dec 20240368.993.12$9
Nov 20240969.052.20$20
Oct 20240771.372.28$16
Sep 2024188669.612.36$13,101
Aug 20240775.632.06$14
Jul 20240879.932.15$17
Jun 20240878.082.63$21
May 2024193778.812.20$15,226
Apr 20240884.451.66$13
Mar 20240580.301.55$8
Feb 20240376.091.78$5
Jan 20240273.023.30$7
Dec 202301071.262.61$26
Nov 20231214177.892.81$9,540
Oct 202303885.443.09$117
Sep 20231623589.042.74$14,520
Aug 202303980.522.67$104
Jul 202303674.852.64$95
Jun 202303268.962.26$72
May 20231425770.622.23$10,155
Apr 202303878.122.24$85
Mar 20230072.852.39$0
Feb 2023188075.112.47$14,121
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 20221920109.378.43$20,999
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
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 20200038.772.71$0
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 2020122030.341.86$3,701
Feb 20200049.881.98$0
Jan 2020161057.252.09$9,217
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 2019175055.052.66$9,634
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 2019156052.782.49$8,234
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 2019173056.803.06$9,826
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 2018164061.443.40$10,076
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 2018167065.142.93$10,878
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 2018165063.842.90$10,534
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 2018166062.874.01$10,436
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 2017167049.292.98$8,231
Sep 20170047.523.09$0
Aug 20170045.373.00$0
Jul 2017156043.873.09$6,844
Jun 20170042.493.09$0
May 2017144045.373.26$6,533
Apr 20170047.933.21$0
Mar 20170046.772.98$0
Feb 20171050.452.95$50
Jan 20170049.413.42$0
Dec 2016198048.763.72$9,654
Nov 20160042.492.64$0
Oct 20163046.193.09$139
Sep 20160041.553.10$0
Aug 2016192041.442.92$7,956
Jul 20160041.622.92$0
Jun 20160045.352.69$0
May 2016187042.521.99$7,951
Apr 20161036.561.99$37
Mar 20160033.011.79$0
Feb 2016194026.472.06$5,135
Jan 20160027.352.36$0
Dec 20150032.362.00$0
Nov 2015181038.792.17$7,021
Oct 20150043.552.43$0
Sep 20151042.992.76$43
Aug 2015191040.162.87$7,671
Jul 20150048.152.95$0
Jun 20155056.152.88$281
May 2015172055.212.96$9,496
Apr 20151049.822.71$50
Mar 20150042.892.93$0
Feb 2015195044.662.98$8,709
Jan 20151043.433.10$43
Dec 20140054.693.59$0
Nov 2014206070.464.25$14,515
Oct 20141078.303.90$78
Sep 20140086.164.05$0
Aug 2014191089.394.04$17,073
Jul 20141096.564.18$97
Jun 20141098.164.74$98
May 2014190094.734.73$17,999
Apr 20140095.944.81$0
Mar 20140095.895.06$0
Feb 20142097.406.19$195
Jan 20140090.404.86$0
Dec 20131091.824.35$92
Nov 2013195088.853.74$17,326
Oct 20130097.423.78$0
Sep 201300104.113.72$0
Aug 20131950104.253.52$20,329
Jul 201300102.523.72$0
Jun 20130094.403.93$0
May 20130094.834.15$0
Apr 2013193093.964.28$18,134
Mar 20131093.623.91$94
Feb 20130091.233.42$0
Jan 2013193091.603.42$17,679
Dec 20120086.773.42$0
Nov 20120086.953.62$0
Oct 20120089.383.40$0
Sep 2012178094.672.92$16,851
Aug 20121092.662.91$93
Jul 20120085.133.02$0
Jun 2012184079.822.52$14,687
May 20122091.612.49$183
Apr 201230101.652.00$305
Mar 20121910105.052.22$20,065
Feb 201200101.102.57$0
Jan 20121098.092.73$98
Dec 20111096.873.24$97
Nov 20111095.723.31$96
Oct 20110084.983.65$0
Sep 20110083.623.99$0
Aug 20111083.404.15$83
Jul 20110094.144.52$0
Jun 20110092.904.64$0
May 20110098.134.40$0
Apr 201100105.964.33$0
Mar 20110096.364.06$0
Feb 20110085.644.18$0
Jan 20110086.504.59$0
Dec 20100085.734.35$0
Nov 2010195080.843.80$15,764
Oct 20103078.103.51$234
Sep 20100072.633.98$0
Aug 2010196073.684.42$14,441
Jul 20103072.554.74$218
Jun 20101070.364.91$70
May 2010198071.124.24$14,082
Apr 20101081.694.12$82
Mar 20103078.394.39$235
Feb 2010175073.585.44$12,877
Jan 20105074.365.96$372
Dec 20091,475071.445.48$105,374
Nov 20091074.593.75$75
Oct 20091072.544.11$73
Sep 2009190065.543.06$12,453
Aug 2009182067.423.22$12,270
Jul 20093061.133.46$183
Jun 2009160066.163.90$10,586
May 20091054.743.93$55
Apr 2009183046.773.59$8,559
Mar 20091042.144.06$42
Feb 2009181032.814.63$5,939
Jan 20090035.865.37$0
Dec 2008153037.105.98$5,676
Nov 2008161055.496.86$8,934
Oct 20080075.246.92$0
Sep 200800101.767.88$0
Aug 200800114.228.48$0
Jul 20081470131.0811.39$19,269
Jun 200810131.3313.03$131
May 20081770123.1711.57$21,801
Apr 20081750110.3110.45$19,304
Mar 20081750101.909.66$17,833
Feb 2008171092.538.77$15,823
Jan 20082090.388.21$181
Dec 20079088.337.30$795
Nov 2007150091.677.29$13,751
Oct 20072082.856.92$166
Sep 2007166075.846.24$12,589
Aug 20070069.066.39$0
Jul 2007189070.906.39$13,400
Jun 2007321062.007.55$19,902
May 20071058.747.85$59
Apr 20070059.617.81$0
Mar 2007168056.927.30$9,563
Feb 2007191055.108.22$10,524
Jan 2007181050.306.73$9,104
Dec 2006191056.656.92$10,820
Nov 20060054.207.62$0
Oct 2006170054.906.01$9,333
Sep 2006171060.085.04$10,274
Aug 20060068.717.34$0
Jul 2006168069.376.34$11,654
Jun 2006337066.286.38$22,336
May 2006174066.016.42$11,486
Apr 2006173064.397.36$11,139
Mar 2006178056.707.08$10,093
Feb 2006166057.597.75$9,560
Jan 2006185060.598.93$11,209
Dec 2005173054.9413.42$9,505
Nov 200568054.6910.59$3,719
Oct 2005168058.3413.80$9,801
Sep 2005173061.4512.08$10,631
Aug 2005172061.519.80$10,580
Jul 2005161055.697.84$8,966
Jun 2005169052.337.38$8,844
May 2005169045.226.65$7,642
Apr 20050049.207.36$0
Mar 2005168050.377.15$8,462
Feb 2005169045.226.31$7,642
Jan 2005337043.166.32$14,545
Dec 2004173039.866.75$6,896
Nov 2004175045.286.33$7,924
Oct 2004173049.706.52$8,598
Sep 2004168043.245.28$7,264
Aug 20040042.375.55$0
Jul 2004338038.286.08$12,939
Jun 2004176036.106.43$6,354
May 2004169037.486.49$6,334
Apr 2004116034.475.86$3,999
Mar 2004173034.365.53$5,944
Feb 2004341032.455.51$11,065
Jan 2004173032.036.30$5,541
Dec 2003173030.266.30$5,235
Nov 2003171028.804.60$4,925
Oct 2003172028.174.76$4,845
Sep 2003171026.314.75$4,499
Aug 2003345029.765.13$10,267
Jul 2003180029.415.17$5,294
Jun 2003169028.565.98$4,827
May 2003174026.595.97$4,627
Apr 2003169026.675.41$4,507
Mar 2003329031.146.10$10,245
Feb 2003174033.487.93$5,826
Jan 2003182030.315.58$5,516
Dec 2002191026.914.85$5,140
Nov 2002179024.664.14$4,414
Oct 2002326026.464.23$8,626
Sep 2002172027.443.64$4,720
Aug 2002163025.963.16$4,231
Jul 2002327024.583.06$8,038
Jun 2002163023.733.34$3,868
May 2002176024.663.58$4,340
Apr 2002341023.653.51$8,065
Mar 2002168022.003.10$3,696
Feb 2002167018.222.38$3,043
Jan 2002345017.172.38$5,924
Dec 2001191016.932.36$3,234
Nov 2001186018.072.41$3,361
Oct 2001343019.782.53$6,785
Sep 2001172024.262.25$4,173
Aug 2001178024.873.05$4,427
Jul 2001366023.933.20$8,758
Jun 2001177024.563.82$4,347
May 2001177025.524.31$4,517
Apr 2001356024.685.34$8,786
Mar 2001196024.545.38$4,810
Feb 2001360027.755.77$9,990
Jan 2001197027.478.40$5,412
Dec 2000183026.889.12$4,919
Nov 2000366032.215.66$11,789
Oct 2000180031.235.15$5,621
Sep 2000363031.875.19$11,569
Aug 2000176029.644.54$5,217
Jul 2000356028.534.09$10,157
Jun 2000181029.304.40$5,303
May 2000355027.263.68$9,677
Apr 2000180024.513.12$4,412
Mar 2000359028.422.86$10,203
Feb 2000167027.622.73$4,613
Jan 2000191025.272.48$4,827
Dec 1999357024.282.42$8,668
Nov 1999185023.192.43$4,290
Oct 1999339020.982.80$7,112
Sep 1999183021.752.62$3,980
Aug 1999356019.262.88$6,857
Jul 1999182017.892.37$3,256
Jun 1999359015.942.36$5,722
May 1999177015.792.32$2,795
Apr 1999364015.102.21$5,496
Mar 1999179012.471.84$2,232
Feb 199935509.981.82$3,543
Jan 1999337010.381.90$3,498
Dec 199835309.201.77$3,248
Nov 1998179010.892.19$1,949
Oct 1998174012.421.97$2,161
Sep 19983586012.592.08$4,632
Aug 19983545911.301.91$4,113
Jul 19983442011.742.24$4,083
Jun 19981656011.242.24$1,989
May 19983576212.622.21$4,642
Apr 19983696013.042.51$4,962
Mar 19981936212.802.31$2,614
Feb 19981665613.952.30$2,444
Jan 19983936214.702.15$5,911
Dec 19973826216.322.41$6,384
Nov 19971756018.193.09$3,369
Oct 19973616219.253.15$7,145
Sep 1997191017.742.95$3,388
Aug 1997361017.862.55$6,447
Jul 1997363017.582.25$6,382
Jun 1997365017.242.26$6,293
May 1997352018.972.31$6,677
Apr 1997189017.882.08$3,379
Mar 1997363018.951.94$6,879
Feb 1997375020.492.21$7,684
Jan 1997175023.483.54$4,109
Dec 1996184023.32$4,291
Nov 1996213021.97$4,680
Oct 1996426023.31$9,930
Sep 1996211022.22$4,688
Aug 1996211020.26$4,275
Jul 1996422019.55$8,250
Jun 1996210018.73$3,933
May 1996422019.43$8,199
Apr 1996215021.51$4,625
Mar 1996428019.38$8,295
Feb 1996213016.98$3,617
Jan 1996218017.07$3,721
Dec 1995439017.19$7,546
Nov 1995422016.00$6,752
Oct 1995220015.43$3,395
Sep 1995426616.18$6,893
Aug 1995210615.92$3,343
Jul 1995213615.24$3,246
Jun 1995787616.41$12,915
May 1995213617.56$3,740
Apr 1995212617.73$3,759
Mar 1995424616.44$6,971
Feb 1995217616.58$3,598
Jan 1995633615.92$10,077
Dec 1994219615.03$3,292
Nov 1994389615.90$6,185
Oct 1994371615.58$5,780
Sep 1994206615.29$3,150
Aug 1994383616.13$6,178
Jul 1994407617.56$7,147
Jun 1994422617.09$7,212
May 1994415615.88$6,590
Apr 1994427614.14$6,038
Mar 1994423612.46$5,271
Feb 1994427612.50$5,338
Jan 199442415812.66$5,368
Dec 199342715812.33$5,265
Nov 199342315314.49$6,129
Oct 199363615815.85$10,081
Sep 199365115315.03$9,785
Aug 199362615815.66$9,803
Jul 199383915815.46$12,971
Jun 199384515316.79$14,188
May 199366315817.68$11,722
Apr 199385615318.05$15,451
Mar 199384715818.14$15,365
Feb 199364114317.90$11,474
Jan 199365215816.93$11,038

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                  155 bbl  × $106.41 =    $16,494
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $16,494

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/4156 is the state's own key, not one this site invented.