VELA, SERAPIO HEIRS GU "D"

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

Gas lease lease 99178District 04Field 779730502 tax incentive programmesCondensateGasSaveExport
Value, all time
$1.8 M
Jan 1993 – May 2026
Value, last 12 filed months
$27 k
at the published price for each month
Months reported
401
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 345 leases and 345 wells, and the rule below applies to all of them.

Discovered
1995-01-09
as the register files it
Field class
Gas
the register's own label
Between wells
933 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 Gas111995-08-11131797
NGPA3none

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
CondensateDisposition1,789 bbl$48,447
GasProduction680,877 Mcf$1,732,408
Total$1,780,854

264,695 Mcf of this lease's gas, across 48 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 26.7799, -99.2105. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

26.77989, -99.21048 · 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
8,430 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 8,430 ft.

Completions filed
Aug 1981
1 of 1 wells

1 well

42-5053130138,430 ftAug 1981

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 20261669106.413.05$2,144
Apr 2026066598.932.87$1,908
Mar 2026260189.753.15$2,072
Feb 2026044463.503.75$1,665
Jan 2026157359.138.00$4,642
Dec 2025059056.664.41$2,604
Nov 2025655758.593.93$2,539
Oct 2025060059.383.30$1,983
Sep 2025149562.743.08$1,586
Aug 2025263663.933.01$2,045
Jul 2025063166.743.32$2,092
Jun 2025363466.483.13$2,183
May 2025063160.553.23$2,040
Apr 2025049862.363.54$1,764
Mar 2025263167.704.27$2,829
Feb 2025856470.884.34$3,015
Jan 2025258874.324.28$2,665
Dec 2024061668.993.12$1,923
Nov 2024161269.052.20$1,415
Oct 2024264371.372.28$1,610
Sep 2024065169.612.36$1,539
Aug 2024057875.632.06$1,193
Jul 2024259279.932.15$1,431
Jun 2024020878.082.63$548
May 2024028978.812.20$635
Apr 2024232984.451.66$715
Mar 2024029480.301.55$454
Feb 2024740676.091.78$1,257
Jan 2024065073.023.30$2,143
Dec 2023459071.262.61$1,825
Nov 2023893777.892.81$3,254
Oct 2023017385.443.09$534
Sep 2023360389.042.74$1,916
Aug 2023065680.522.67$1,753
Jul 2023054874.852.64$1,448
Jun 2023046768.962.26$1,055
May 2023258870.622.23$1,451
Apr 2023259778.122.24$1,492
Mar 2023065272.852.39$1,560
Feb 2023759575.112.47$1,993
Jan 2023061176.533.39$2,070
Dec 2022052776.415.73$3,019
Nov 2022078885.005.65$4,449
Oct 202251,02087.185.86$6,417
Sep 202201,00184.888.16$8,172
Aug 202201,08494.529.13$9,894
Jul 202201,052101.587.54$7,934
Jun 20224884115.097.98$7,512
May 20220811109.378.43$6,839
Apr 20220639104.226.84$4,369
Mar 20226645108.885.08$3,928
Feb 2022059491.054.86$2,886
Jan 2022164581.844.54$3,009
Dec 2021064171.323.90$2,499
Nov 2021262677.435.24$3,433
Oct 2021048079.795.71$2,743
Sep 2021048669.865.35$2,601
Aug 2021051266.024.22$2,161
Jul 2021551170.783.98$2,389
Jun 2021450469.493.38$1,982
May 2021049663.483.02$1,497
Apr 2021049060.362.76$1,352
Mar 2021247561.302.72$1,413
Feb 2021047757.805.55$2,646
Jan 2021162550.412.81$1,807
Dec 2020361744.642.68$1,785
Nov 2020060638.772.71$1,640
Oct 2020062536.972.48$1,549
Sep 2020360837.091.99$1,322
Aug 2020062639.982.39$1,493
Jul 2020063338.371.83$1,155
Jun 2020360734.901.69$1,131
May 2020063016.921.81$1,143
Apr 2020458314.751.80$1,111
Mar 2020461330.341.86$1,259
Feb 2020059749.881.98$1,182
Jan 2020067457.252.09$1,412
Dec 2019263959.012.30$1,591
Nov 2019262355.302.75$1,824
Oct 2019058153.472.42$1,405
Sep 2019358755.052.66$1,725
Aug 2019061953.112.30$1,426
Jul 2019061456.272.46$1,510
Jun 2019461252.782.49$1,736
May 2019066558.482.74$1,822
Apr 2019068162.632.75$1,873
Mar 2019370756.803.06$2,335
Feb 2019065250.852.79$1,821
Jan 2019070146.033.23$2,263
Dec 2018563346.594.19$2,882
Nov 2018061552.934.24$2,606
Oct 2018179461.443.40$2,760
Sep 2018073059.543.11$2,269
Aug 2018073959.403.07$2,266
Jul 2018075265.142.93$2,205
Jun 2018068860.183.08$2,117
May 2018070965.382.90$2,057
Apr 20181666563.842.90$2,950
Mar 2018072161.222.79$2,009
Feb 2018069061.782.77$1,909
Jan 2018074962.874.01$3,003
Dec 2017074257.272.92$2,168
Nov 2017070455.423.12$2,195
Oct 2017079749.292.98$2,378
Sep 2017074947.523.09$2,312
Aug 2017073945.373.00$2,220
Jul 2017075143.873.09$2,319
Jun 2017873342.493.09$2,603
May 2017076545.373.26$2,497
Apr 2017075147.933.21$2,412
Mar 2017071846.772.98$2,142
Feb 2017059650.452.95$1,760
Jan 2017077249.413.42$2,639
Dec 2016058248.763.72$2,167
Nov 2016059442.492.64$1,571
Oct 2016066846.193.09$2,064
Sep 2016074141.553.10$2,298
Aug 2016077541.442.92$2,266
Jul 2016069041.622.92$2,018
Jun 2016065845.352.69$1,767
May 2016069842.521.99$1,390
Apr 2016761736.561.99$1,484
Mar 2016067933.011.79$1,218
Feb 2016053526.472.06$1,104
Jan 2016370927.352.36$1,758
Dec 2015074932.362.00$1,499
Nov 2015075438.792.17$1,634
Oct 2015086943.552.43$2,109
Sep 2015073342.992.76$2,022
Aug 2015073240.162.87$2,103
Jul 2015076548.152.95$2,253
Jun 2015074656.152.88$2,151
May 2015078455.212.96$2,317
Apr 2015074249.822.71$2,008
Mar 2015574942.892.93$2,413
Feb 2015070444.662.98$2,095
Jan 2015083943.433.10$2,601
Dec 2014084254.693.59$3,024
Nov 2014679970.464.25$3,820
Oct 2014084178.303.90$3,281
Sep 2014085486.164.05$3,455
Aug 201401,49589.394.04$6,033
Jul 201401,13696.564.18$4,748
Jun 2014073398.164.74$3,472
May 2014091794.734.73$4,334
Apr 2014093695.944.81$4,501
Mar 201401,02595.895.06$5,183
Feb 2014093097.406.19$5,759
Jan 201401,63290.404.86$7,933
Dec 201301,62191.824.35$7,059
Nov 2013095688.853.74$3,574
Oct 2013787897.423.78$4,000
Sep 201301,051104.113.72$3,907
Aug 201301,385104.253.52$4,879
Jul 201301,267102.523.72$4,710
Jun 201301,24994.403.93$4,913
May 201301,30894.834.15$5,427
Apr 201301,08493.964.28$4,642
Mar 201301,03693.623.91$4,054
Feb 201301,03591.233.42$3,540
Jan 201301,15691.603.42$3,953
Dec 201201,08686.773.42$3,714
Nov 2012082586.953.62$2,991
Oct 2012680589.383.40$3,273
Sep 2012090794.672.92$2,647
Aug 201201,09992.662.91$3,196
Jul 201201,15485.133.02$3,486
Jun 201201,12479.822.52$2,831
May 201201,10691.612.49$2,752
Apr 201201,154101.652.00$2,304
Mar 201201,279105.052.22$2,842
Feb 201201,147101.102.57$2,948
Jan 201201,27198.092.73$3,475
Dec 201171,36296.873.24$5,091
Nov 201101,44895.723.31$4,795
Oct 201101,52484.983.65$5,560
Sep 201101,24183.623.99$4,946
Aug 201101,16583.404.15$4,834
Jul 2011050294.144.52$2,268
Jun 2011653792.904.64$3,049
May 2011091698.134.40$4,035
Apr 20110829105.964.33$3,592
Mar 2011085396.364.06$3,461
Feb 2011171,07085.644.18$5,928
Jan 201101,17086.504.59$5,369
Dec 2010090485.734.35$3,930
Nov 201001,30480.843.80$4,949
Oct 2010959078.103.51$2,773
Sep 2010092272.633.98$3,669
Aug 201001,01273.684.42$4,472
Jul 201001,00072.554.74$4,736
Jun 2010091970.364.91$4,513
May 2010097171.124.24$4,112
Apr 2010090281.694.12$3,719
Mar 2010094678.394.39$4,152
Feb 2010098073.585.44$5,334
Jan 2010087574.365.96$5,219
Dec 200901,02271.445.48$5,604
Nov 2009096974.593.75$3,635
Oct 2009094772.544.11$3,892
Sep 2009096765.543.06$2,964
Aug 200901,13267.423.22$3,643
Jul 200901,20361.133.46$4,168
Jun 200901,18966.163.90$4,631
May 200901,21154.743.93$4,754
Apr 200901,19346.773.59$4,280
Mar 200901,23342.144.06$5,005
Feb 200901,10832.814.63$5,133
Jan 2009101,05835.865.37$6,041
Dec 2008090037.105.98$5,379
Nov 200801,05155.496.86$7,210
Oct 2008089575.246.92$6,195
Sep 20080826101.767.88$6,506
Aug 200801,061114.228.48$9,000
Jul 200801,140131.0811.39$12,984
Jun 200801,282131.3313.03$16,708
May 200801,166123.1711.57$13,496
Apr 200801,147110.3110.45$11,992
Mar 200801,204101.909.66$11,636
Feb 200801,24792.538.77$10,937
Jan 200801,07990.388.21$8,854
Dec 200701,28688.337.30$9,390
Nov 200701,28491.677.29$9,363
Oct 200701,78082.856.92$12,321
Sep 200701,01675.846.24$6,344
Aug 200701,18969.066.39$7,595
Jul 200701,19270.906.39$7,614
Jun 200701,19662.007.55$9,028
May 200701,24858.747.85$9,792
Apr 200701,26659.617.81$9,881
Mar 200701,49956.927.30$10,946
Feb 200701,12055.108.22$9,202
Jan 200701,08850.306.73$7,319
Dec 200601,16156.656.92$8,032
Nov 200601,00954.207.62$7,686
Oct 200601,29654.906.01$7,794
Sep 200601,69360.085.04$8,528
Aug 2006079668.717.34$5,843
Jul 200601,19669.376.34$7,586
Jun 2006098366.286.38$6,275
May 2006036766.016.42$2,358
Apr 2006090764.397.36$6,676
Mar 200601,06456.707.08$7,536
Feb 2006099157.597.75$7,681
Jan 200601,09760.598.93$9,800
Dec 200501,13254.9413.42$15,186
Nov 200501,19554.6910.59$12,653
Oct 200501,37958.3413.80$19,024
Sep 200501,27861.4512.08$15,437
Aug 200501,18661.519.80$11,619
Jul 200501,22555.697.84$9,608
Jun 200501,19452.337.38$8,813
May 200501,21545.226.65$8,081
Apr 200501,03849.207.36$7,640
Mar 200501,29050.377.15$9,230
Feb 2005075745.226.31$4,778
Jan 200501,25043.166.32$7,903
Dec 200401,37839.866.75$9,303
Nov 200401,07945.286.33$6,831
Oct 200401,10449.706.52$7,193
Sep 200401,49243.245.28$7,884
Aug 200401,17742.375.55$6,533
Jul 200401,65038.286.08$10,039
Jun 2004093636.106.43$6,021
May 200401,22037.486.49$7,923
Apr 200401,24134.475.86$7,270
Mar 200401,36334.365.53$7,538
Feb 200401,21532.455.51$6,694
Jan 200401,34832.036.30$8,492
Dec 200301,41930.266.30$8,942
Nov 200301,12128.804.60$5,151
Oct 200301,26528.174.76$6,021
Sep 200301,49626.314.75$7,105
Aug 200301,58629.765.13$8,136
Jul 200301,57929.415.17$8,165
Jun 200301,47528.565.98$8,825
May 200301,60326.595.97$9,574
Apr 200301,71726.675.41$9,284
Mar 200301,78731.146.10$10,894
Feb 200301,36833.487.93$10,843
Jan 200301,69230.315.58$9,445
Dec 2002111,68126.914.85$8,455
Nov 2002741,45424.664.14$7,840
Oct 2002822,01326.464.23$10,683
Sep 2002681,59127.443.64$7,650
Aug 2002651,63025.963.16$6,845
Jul 2002201,70824.583.06$5,721
Jun 200201,61523.733.34$5,391
May 2002191,51124.663.58$5,884
Apr 2002621,60923.653.51$7,118
Mar 2002651,51322.003.10$6,124
Feb 2002501,33218.222.38$4,075
Jan 2002501,51617.172.38$4,460
Dec 200101,67816.932.36$3,967
Nov 200101,73618.072.41$4,176
Oct 200101,75719.782.53$4,443
Sep 200101,89624.262.25$4,269
Aug 200101,95024.873.05$5,954
Jul 200101,77123.933.20$5,662
Jun 200101,82224.563.82$6,968
May 200101,97125.524.31$8,490
Apr 200101,47824.685.34$7,886
Mar 200101,69824.545.38$9,129
Feb 200101,37827.755.77$7,947
Jan 200101,76327.478.40$14,807
Dec 200001,56126.889.12$14,240
Nov 200001,98232.215.66$11,214
Oct 200002,14131.235.15$11,017
Sep 200002,37631.875.19$12,323
Aug 200002,38329.644.54$10,821
Jul 200002,25228.534.09$9,210
Jun 200002,22529.304.40$9,784
May 200002,37627.263.68$8,743
Apr 200002,31224.513.12$7,204
Mar 200002,56028.422.86$7,321
Feb 200002,15227.622.73$5,867
Jan 200002,58625.272.48$6,415
Dec 199902,58024.282.42$6,253
Nov 199902,87123.192.43$6,988
Oct 199902,71220.982.80$7,604
Sep 1999142,46821.752.62$6,768
Aug 1999172,70419.262.88$8,103
Jul 1999142,74517.892.37$6,763
Jun 1999162,75815.942.36$6,770
May 199943,03615.792.32$7,110
Apr 199902,68615.102.21$5,931
Mar 199902,26712.471.84$4,167
Feb 199902,1029.981.82$3,821
Jan 199902,29410.381.90$4,358
Dec 199802,3279.201.77$4,127
Nov 199802,30710.892.19$5,042
Oct 199802,70812.421.97$5,333
Sep 199802,01112.592.08$4,188
Aug 199802,17111.301.91$4,141
Jul 199802,28511.742.24$5,112
Jun 199802,32311.242.24$5,197
May 199802,53612.622.21$5,595
Apr 199802,58513.042.51$6,476
Mar 199802,46812.802.31$5,700
Feb 199802,20313.952.30$5,065
Jan 199802,46814.702.15$5,318
Dec 199741,70316.322.41$4,171
Nov 1997113,61918.193.09$11,377
Oct 1997123,39719.253.15$10,931
Sep 199732,92317.742.95$8,690
Aug 1997102,80817.862.55$7,352
Jul 199773,16317.582.25$7,230
Jun 199783,17017.242.26$7,293
May 1997103,09918.972.31$7,344
Apr 199793,15817.882.08$6,738
Mar 1997243,28418.951.94$6,823
Feb 1997683,07620.492.21$8,179
Jan 1997333,30223.483.54$12,463
Dec 1996643,35123.32$1,492
Nov 1996653,28421.97$1,428
Oct 1996523,58523.31$1,212
Sep 199683,61122.22$178
Aug 199683,56620.26$162
Jul 199683,80019.55$156
Jun 199683,88818.73$150
May 1996133,79519.43$253
Apr 199683,97021.51$172
Mar 199604,05719.38$0
Feb 199603,58516.98$0
Jan 199603,60717.07$0
Dec 199504,18017.19$0
Nov 199503,79116.00$0
Oct 199504,22015.43$0
Sep 199503,99316.18$0
Aug 199504,28415.92$0
Jul 199504,26415.24$0
Jun 199504,36116.41$0
May 199504,36117.56$0
Apr 199504,49417.73$0
Mar 199504,80016.44$0
Feb 199504,60716.58$0
Jan 199575,28815.92$111
Dec 1994135,64415.03$195
Nov 1994146,21515.90$223
Oct 199492,13515.58$140
Sep 199484,40715.29$122
Aug 1994134,84016.13$210
Jul 1994374,98217.56$650
Jun 1994124,80417.09$205
May 199445,82415.88$64
Apr 199465,98614.14$85
Mar 199456,65212.46$62
Feb 199456,33112.50$63
Jan 199446,17212.66$51
Dec 199346,85712.33$49
Nov 199356,30814.49$72
Oct 199334,30715.85$48
Sep 199344,76415.03$60
Aug 199334,78915.66$47
Jul 199366,77515.46$93
Jun 199387,54416.79$134
May 199377,90417.68$124
Apr 1993810,75418.05$144
Mar 19931712,26718.14$308
Feb 19938714,34017.90$1,557
Jan 199319417,35216.93$3,284

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             1 bbl  × $106.41 =       $106
Gas                  669 Mcf  × $  3.05 =     $2,038

────────────────────────────────────────────────────
Month total                                   $2,144

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/99178 is the state's own key, not one this site invented.