SPEAR, IRENE L.

Operated by HILCORP ENERGY COMPANY (P-5 386310) in the LA PERLA (LOBO CONS.) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Gas lease lease 173279District 04Field 509250152 tax incentive programmesCondensateGasSaveExport
Value, all time
$6.2 M
May 1999 – May 2026
Value, last 12 filed months
$66 k
at the published price for each month
Months reported
325
no gaps in the span
Streams
2
condensate, 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 719 leases and 719 wells, and the rule below applies to all of them.

Discovered
1999-06-29
as the register files it
Field class
Gas
the register's own label
Between wells
1,200 ft
minimum
From a lease line
467 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 2010-11-02.

The Commission's schedule remark for this field reads: PERMITTED/DRILLED/COMPLETED ON THE SAME LEASE.

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
High Cost Gas111999-08-24140794
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
CondensateDisposition699 bbl$16,194
GasProduction1,625,276 Mcf$6,182,131
Total$6,198,326

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 27.2355, -99.3499. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

27.23549, -99.34989 · 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
9,750 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 9,750 ft.

Completions filed
May 1999
1 of 1 wells

1 well

42-5053392619,750 ftMay 1999

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 (325)

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

325 months

May 202601,600106.413.05$4,873
Apr 202601,56598.932.87$4,491
Mar 202601,57189.753.15$4,948
Feb 202601,48463.503.75$5,565
Jan 202601,39859.138.00$11,181
Dec 202501,56956.664.41$6,925
Nov 202511,51458.593.93$6,003
Oct 202501,55659.383.30$5,142
Sep 202501,48662.743.08$4,572
Aug 202501,10363.933.01$3,325
Jul 202501,42066.743.32$4,708
Jun 202501,44666.483.13$4,524
May 202501,71760.553.23$5,550
Apr 202501,59562.363.54$5,651
Mar 202501,86667.704.27$7,965
Feb 202511,54870.884.34$6,791
Jan 202501,73074.324.28$7,402
Dec 202401,48368.993.12$4,629
Nov 202401,23969.052.20$2,724
Oct 202401,61971.372.28$3,694
Sep 202401,65069.612.36$3,901
Aug 202401,87375.632.06$3,865
Jul 202401,85879.932.15$3,988
Jun 202401,43778.082.63$3,785
May 202401,87978.812.20$4,131
Apr 202401,83984.451.66$3,051
Mar 202401,82580.301.55$2,820
Feb 202401,95676.091.78$3,489
Jan 202402,23473.023.30$7,367
Dec 202302,12571.262.61$5,548
Nov 202301,98677.892.81$5,576
Oct 202302,00985.443.09$6,202
Sep 202302,11289.042.74$5,776
Aug 202302,32280.522.67$6,206
Jul 202302,37274.852.64$6,266
Jun 202302,39568.962.26$5,409
May 202302,47070.622.23$5,502
Apr 202302,72478.122.24$6,096
Mar 202313,31172.852.39$7,997
Feb 202303,07475.112.47$7,580
Jan 202303,86876.533.39$13,104
Dec 202203,55876.415.73$20,384
Nov 202203,84585.005.65$21,710
Oct 202204,14387.185.86$24,294
Sep 202204,11684.888.16$33,602
Aug 202204,49694.529.13$41,036
Jul 20220583101.587.54$4,397
Jun 20220126115.097.98$1,005
May 20220247109.378.43$2,083
Apr 20220155104.226.84$1,060
Mar 20220160108.885.08$812
Feb 2022017491.054.86$845
Jan 2022015881.844.54$717
Dec 2021015471.323.90$600
Nov 2021012577.435.24$655
Oct 2021010979.795.71$623
Sep 2021011069.865.35$589
Aug 2021019266.024.22$810
Jul 2021018070.783.98$717
Jun 2021013269.493.38$446
May 20210563.483.02$15
Apr 202106660.362.76$182
Mar 2021017261.302.72$467
Feb 2021012257.805.55$677
Jan 2021016450.412.81$461
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 2020013637.091.99$271
Aug 2020015739.982.39$374
Jul 20200038.371.83$0
Jun 20200034.901.69$0
May 2020010716.921.81$194
Apr 2020018014.751.80$325
Mar 2020020430.341.86$379
Feb 2020018349.881.98$362
Jan 2020020157.252.09$421
Dec 2019020359.012.30$468
Nov 2019019855.302.75$545
Oct 2019021253.472.42$513
Sep 2019020355.052.66$539
Aug 2019022353.112.30$514
Jul 2019022456.272.46$551
Jun 2019021452.782.49$533
May 2019023358.482.74$638
Apr 2019023662.632.75$649
Mar 2019024556.803.06$750
Feb 2019021450.852.79$598
Jan 2019024546.033.23$791
Dec 2018024446.594.19$1,021
Nov 2018024552.934.24$1,038
Oct 2018025261.443.40$856
Sep 2018024059.543.11$746
Aug 2018024159.403.07$739
Jul 2018023965.142.93$701
Jun 2018015860.183.08$486
May 2018023865.382.90$690
Apr 2018027163.842.90$786
Mar 2018027461.222.79$764
Feb 2018022561.782.77$622
Jan 2018025462.874.01$1,018
Dec 20170757.272.92$20
Nov 201709555.423.12$296
Oct 2017010949.292.98$325
Sep 2017016547.523.09$509
Aug 2017011945.373.00$358
Jul 2017026443.873.09$815
Jun 2017028342.493.09$874
May 2017012545.373.26$408
Apr 2017014247.933.21$456
Mar 2017013946.772.98$415
Feb 2017015950.452.95$469
Jan 2017017249.413.42$588
Dec 2016048148.763.72$1,791
Nov 2016027042.492.64$714
Oct 2016016046.193.09$494
Sep 2016017141.553.10$530
Aug 2016024541.442.92$716
Jul 2016028341.622.92$828
Jun 2016016345.352.69$438
May 2016017442.521.99$346
Apr 2016024236.561.99$482
Mar 2016011133.011.79$199
Feb 2016027926.472.06$576
Jan 2016018527.352.36$437
Dec 2015034732.362.00$694
Nov 2015044738.792.17$969
Oct 2015029743.552.43$721
Sep 2015036342.992.76$1,001
Aug 2015037140.162.87$1,066
Jul 2015048448.152.95$1,425
Jun 2015028056.152.88$807
May 2015042855.212.96$1,265
Apr 2015038149.822.71$1,031
Mar 2015049942.892.93$1,464
Feb 2015024344.662.98$723
Jan 201506543.433.10$202
Dec 2014017754.693.59$636
Nov 2014028470.464.25$1,208
Oct 2014050878.303.90$1,982
Sep 2014097586.164.05$3,944
Aug 2014093689.394.04$3,777
Jul 2014043696.564.18$1,822
Jun 2014046298.164.74$2,188
May 2014032094.734.73$1,513
Apr 2014049595.944.81$2,381
Mar 2014063595.895.06$3,211
Feb 2014060397.406.19$3,734
Jan 2014075690.404.86$3,675
Dec 2013081991.824.35$3,566
Nov 2013094788.853.74$3,540
Oct 201302,34697.423.78$8,866
Sep 201302,280104.113.72$8,476
Aug 201302,531104.253.52$8,916
Jul 201302,631102.523.72$9,781
Jun 201302,32194.403.93$9,129
May 201302,58494.834.15$10,721
Apr 201301,53493.964.28$6,569
Mar 201301,14293.623.91$4,469
Feb 201301,54991.233.42$5,297
Jan 201301,88691.603.42$6,450
Dec 201201,55886.773.42$5,329
Nov 201202,22586.953.62$8,066
Oct 201202,70689.383.40$9,200
Sep 201202,14694.672.92$6,263
Aug 201202,91592.662.91$8,477
Jul 201203,82785.133.02$11,561
Jun 201202,59979.822.52$6,547
May 201201,28791.612.49$3,202
Apr 201203,268101.652.00$6,526
Mar 201202,775105.052.22$6,166
Feb 20120694101.102.57$1,784
Jan 201201,89598.092.73$5,181
Dec 201103,36496.873.24$10,898
Nov 201102,89995.723.31$9,599
Oct 201102,39084.983.65$8,720
Sep 201102,16283.623.99$8,617
Aug 201102,06783.404.15$8,577
Jul 201101,94694.144.52$8,791
Jun 201102,70292.904.64$12,537
May 201101,49598.134.40$6,585
Apr 201101,953105.964.33$8,463
Mar 201104,49196.364.06$18,222
Feb 201104,47285.644.18$18,693
Jan 201104,79586.504.59$22,003
Dec 201003,72385.734.35$16,187
Nov 201002,52880.843.80$9,595
Oct 201004,67078.103.51$16,387
Sep 201004,28672.633.98$17,056
Aug 201004,29273.684.42$18,968
Jul 201004,04372.554.74$19,150
Jun 201003,68670.364.91$18,100
May 201002,48671.124.24$10,529
Apr 201002,10281.694.12$8,666
Mar 201003,21478.394.39$14,105
Feb 201002,67573.585.44$14,558
Jan 201001,17274.365.96$6,990
Dec 200901,48471.445.48$8,138
Nov 200902,67574.593.75$10,035
Oct 200901,33372.544.11$5,479
Sep 200902,78565.543.06$8,535
Aug 200902,22567.423.22$7,161
Jul 200902,49261.133.46$8,634
Jun 200904,06466.163.90$15,829
May 200904,02254.743.93$15,789
Apr 200901,42346.773.59$5,105
Mar 200902,27742.144.06$9,242
Feb 200902,29232.814.63$10,619
Jan 200903,61135.865.37$19,395
Dec 200801,59837.105.98$9,551
Nov 200802,92355.496.86$20,053
Oct 200803,74575.246.92$25,923
Sep 200803,579101.767.88$28,192
Aug 200804,619114.228.48$39,183
Jul 200804,054131.0811.39$46,173
Jun 200804,550131.3313.03$59,298
May 200804,756123.1711.57$55,047
Apr 200803,483110.3110.45$36,414
Mar 200809,439101.909.66$91,219
Feb 2008049592.538.77$4,341
Jan 2008047090.388.21$3,857
Dec 2007048488.337.30$3,534
Nov 2007048091.677.29$3,500
Oct 2007052982.856.92$3,662
Sep 2007048775.846.24$3,041
Aug 2007050969.066.39$3,251
Jul 2007051770.906.39$3,303
Jun 2007099162.007.55$7,481
May 200702,62058.747.85$20,557
Apr 2007074459.617.81$5,807
Mar 2007057356.927.30$4,184
Feb 2007061255.108.22$5,028
Jan 2007058050.306.73$3,902
Dec 2006088156.656.92$6,095
Nov 2006012954.207.62$983
Oct 2006079354.906.01$4,769
Sep 2006083960.085.04$4,226
Aug 2006068568.717.34$5,028
Jul 2006070169.376.34$4,446
Jun 2006058866.286.38$3,754
May 2006066366.016.42$4,260
Apr 2006066464.397.36$4,887
Mar 2006077856.707.08$5,511
Feb 2006072957.597.75$5,651
Jan 2006074960.598.93$6,691
Dec 2005079754.9413.42$10,692
Nov 200501,03654.6910.59$10,970
Oct 2005045358.3413.80$6,249
Sep 2005079661.4512.08$9,615
Aug 2005084361.519.80$8,259
Jul 2005088355.697.84$6,926
Jun 2005080852.337.38$5,964
May 2005083245.226.65$5,534
Apr 200501,13749.207.36$8,369
Mar 200501,00350.377.15$7,176
Feb 200501,14045.226.31$7,196
Jan 200501,24743.166.32$7,884
Dec 200401,11239.866.75$7,507
Nov 200401,12345.286.33$7,109
Oct 2004381,25349.706.52$10,052
Sep 200401,31043.245.28$6,922
Aug 200401,46442.375.55$8,126
Jul 200401,62838.286.08$9,905
Jun 200401,75936.106.43$11,316
May 200402,18237.486.49$14,171
Apr 200402,89434.475.86$16,954
Mar 200402,98234.365.53$16,491
Feb 200402,46332.455.51$13,570
Jan 200402,76732.036.30$17,431
Dec 200303,48630.266.30$21,968
Nov 200307,17228.804.60$32,956
Oct 2003010,28728.174.76$48,962
Sep 200308,86026.314.75$42,079
Aug 200303,25129.765.13$16,677
Jul 200303,41429.415.17$17,653
Jun 200303,86828.565.98$23,142
May 200305,09926.595.97$30,455
Apr 200309,15526.675.41$49,504
Mar 2003012,24631.146.10$74,652
Feb 200302,51133.487.93$19,902
Jan 200303,63730.315.58$20,302
Dec 200203,40326.914.85$16,517
Nov 200204,18924.664.14$17,330
Oct 200209,59826.464.23$40,591
Sep 2002010,86427.443.64$39,493
Aug 200209,05325.963.16$28,645
Jul 2002010,96624.583.06$33,575
Jun 200208,46423.733.34$28,255
May 200209,70024.663.58$34,765
Apr 2002010,64423.653.51$37,385
Mar 2002011,87622.003.10$36,848
Feb 2002010,17418.222.38$24,170
Jan 2002013,13617.172.38$31,207
Dec 200118012,50116.932.36$32,605
Nov 2001014,82518.072.41$35,662
Oct 2001014,77219.782.53$37,357
Sep 2001017,82924.262.25$40,139
Aug 200109,90524.873.05$30,242
Jul 2001012,49223.933.20$39,938
Jun 2001016,19924.563.82$61,948
May 2001017,91725.524.31$77,174
Apr 2001017,93124.685.34$95,668
Mar 2001019,26524.545.38$103,577
Feb 2001017,31727.755.77$99,869
Jan 2001020,43527.478.40$171,629
Dec 2000021,72126.889.12$198,150
Nov 2000022,37132.215.66$126,575
Oct 2000024,84231.235.15$127,825
Sep 2000020,71131.875.19$107,418
Aug 2000026,28229.644.54$119,340
Jul 2000028,48228.534.09$116,484
Jun 2000028,27829.304.40$124,345
May 200011733,01027.263.68$124,658
Apr 2000031,68824.513.12$98,740
Mar 2000035,26328.422.86$100,843
Feb 2000032,58627.622.73$88,846
Jan 2000042,13125.272.48$104,506
Dec 199918249,44024.282.42$124,248
Nov 1999044,71323.192.43$108,831
Oct 1999045,19620.982.80$126,716
Sep 1999058,18421.752.62$152,375
Aug 199917966,60219.262.88$194,968
Jul 1999088,93717.892.37$210,991
Jun 19990123,25715.942.36$291,145
May 1999052,27815.792.32$121,338

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
Condensate             0 bbl  × $106.41 =         $0
Gas                1,600 Mcf  × $  3.05 =     $4,873

────────────────────────────────────────────────────
Month total                                   $4,873

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. 04/G/173279 is the state's own key, not one this site invented.