GLASSCOCK, MELVIN

Operated by MISSION ENERGY INC. (P-5 570410) in the GROSVENOR, SW (DUFFER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 17151District 7BField 37157500NGPA filingOilCasinghead gasSaveExport
Value, all time
$474 k
Jan 1993 – May 2026
Value, last 12 filed months
$670
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 11 leases and 20 wells, and the rule below applies to all of them.

Discovered
1980-08-25
as the register files it
Field class
Oil
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres.

The Commission's schedule remark for this field reads: FIELD RULES PER DKT #7B-80,937 EFF 10-1-83

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
NGPA2none

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
OilDisposition3,640 bbl$161,468
Casinghead gasProduction97,726 Mcf$312,956
Total$474,424

26,291 Mcf of this lease's gas, across 40 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 (2)

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 31.8568, -99.1713. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.1 miles.

31.85675, -99.17133 · 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
50.0%
1 of 2 wells
With a plug date
0.0%
0 of 2 wells
Median depth
2,777 ft
2 wells filed one
Completion to plug
no well filed both dates

What the state filed about each well

On the RRC proration schedule
150.0%
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.
150.0%

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

Between 2,700 and 2,854 ft, median 2,777 ft, over the 2 wells that filed a depth.

Completions filed
Apr 1981 – Oct 1987
2 of 2 wells

2 wells

42-0493281722,700 ftOct 1987Yes
42-0493268112,854 ftApr 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 202600106.413.05$0
Apr 202603398.932.87$95
Mar 2026012589.753.15$394
Feb 20260663.503.75$23
Jan 20260459.138.00$32
Dec 20250656.664.41$26
Nov 20250758.593.93$27
Oct 20250659.383.30$20
Sep 20250562.743.08$15
Aug 20250463.933.01$12
Jul 20250566.743.32$17
Jun 20250366.483.13$9
May 202568660.553.23$4,137
Apr 20250862.363.54$28
Mar 2025025067.704.27$1,067
Feb 2025026670.884.34$1,155
Jan 2025033574.324.28$1,433
Dec 202406068.993.12$187
Nov 202403569.052.20$77
Oct 2024024071.372.28$548
Sep 2024033569.612.36$792
Aug 20244934075.632.06$4,408
Jul 2024035079.932.15$751
Jun 2024035878.082.63$943
May 20244324578.812.20$3,927
Apr 2024025084.451.66$415
Mar 20240080.301.55$0
Feb 20245224676.091.78$4,395
Jan 2024025173.023.30$828
Dec 2023031871.262.61$830
Nov 20233811077.892.81$3,269
Oct 202302885.443.09$86
Sep 2023040189.042.74$1,097
Aug 2023038580.522.67$1,029
Jul 20237739574.852.64$6,807
Jun 2023040068.962.26$903
May 2023036070.622.23$802
Apr 20230278.122.24$4
Mar 20230372.852.39$7
Feb 202307875.112.47$192
Jan 2023019976.533.39$674
Dec 2022019076.415.73$1,089
Nov 2022030085.005.65$1,694
Oct 2022031187.185.86$1,824
Sep 2022031284.888.16$2,547
Aug 2022030294.529.13$2,756
Jul 202255300101.587.54$7,850
Jun 20220240115.097.98$1,915
May 20220130109.378.43$1,096
Apr 20220300104.226.84$2,051
Mar 202245307108.885.08$6,458
Feb 2022028091.054.86$1,360
Jan 2022030081.844.54$1,361
Dec 20215212071.323.90$4,177
Nov 2021031077.435.24$1,623
Oct 2021034079.795.71$1,943
Sep 20218232569.865.35$7,468
Aug 2021033066.024.22$1,393
Jul 2021034070.783.98$1,354
Jun 20214231569.493.38$3,983
May 2021038063.483.02$1,147
Apr 2021038060.362.76$1,048
Mar 2021030061.302.72$815
Feb 202103057.805.55$166
Jan 202106150.412.81$171
Dec 2020021044.642.68$562
Nov 20206039538.772.71$3,395
Oct 2020040036.972.48$991
Sep 202006337.091.99$125
Aug 202010036039.982.39$4,857
Jul 2020023038.371.83$420
Jun 2020042034.901.69$710
May 2020041016.921.81$744
Apr 2020043014.751.80$776
Mar 2020044030.341.86$817
Feb 20207441449.881.98$4,511
Jan 2020015057.252.09$314
Dec 2019110059.012.30$6,491
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 201719050.452.95$959
Jan 20170849.413.42$27
Dec 201601148.763.72$41
Nov 20160242.492.64$5
Oct 201601746.193.09$53
Sep 201601741.553.10$53
Aug 201602141.442.92$61
Jul 20160841.622.92$23
Jun 20160845.352.69$21
May 201602642.521.99$52
Apr 201604936.561.99$98
Mar 201606233.011.79$111
Feb 201607026.472.06$144
Jan 201607727.352.36$182
Dec 201507532.362.00$150
Nov 201507238.792.17$156
Oct 201509543.552.43$231
Sep 2015428342.992.76$2,035
Aug 2015010640.162.87$304
Jul 201506248.152.95$183
Jun 201505056.152.88$144
May 201504455.212.96$130
Apr 201506049.822.71$162
Mar 201506042.892.93$176
Feb 201505144.662.98$152
Jan 201506543.433.10$202
Dec 201407054.693.59$251
Nov 201407070.464.25$298
Oct 201408178.303.90$316
Sep 201407486.164.05$299
Aug 2014328889.394.04$3,216
Jul 201409496.564.18$393
Jun 201409198.164.74$431
May 201407594.734.73$354
Apr 201409095.944.81$433
Mar 201408995.895.06$450
Feb 201405997.406.19$365
Jan 2014418690.404.86$4,124
Dec 201308491.824.35$366
Nov 201307888.853.74$292
Oct 201308397.423.78$314
Sep 2013076104.113.72$283
Aug 2013075104.253.52$264
Jul 2013075102.523.72$279
Jun 201308594.403.93$334
May 2013438794.834.15$4,439
Apr 201308593.964.28$364
Mar 201308993.623.91$348
Feb 201308891.233.42$301
Jan 201308891.603.42$301
Dec 201208386.773.42$284
Nov 201206886.953.62$247
Oct 2012010589.383.40$357
Sep 2012459194.672.92$4,526
Aug 2012010092.662.91$291
Jul 2012010085.133.02$302
Jun 201209179.822.52$229
May 201209091.612.49$224
Apr 2012086101.652.00$172
Mar 2012091105.052.22$202
Feb 2012086101.102.57$221
Jan 2012459298.092.73$4,666
Dec 201109396.873.24$301
Nov 201108695.723.31$285
Oct 201108784.983.65$317
Sep 201108783.623.99$347
Aug 201108983.404.15$369
Jul 201109094.144.52$407
Jun 201108092.904.64$371
May 2011448498.134.40$4,688
Apr 2011087105.964.33$377
Mar 201109196.364.06$369
Feb 201107185.644.18$297
Jan 201107386.504.59$335
Dec 201007585.734.35$326
Nov 201008680.843.80$326
Oct 201009278.103.51$323
Sep 201009072.633.98$358
Aug 2010449173.684.42$3,644
Jul 201009672.554.74$455
Jun 201008770.364.91$427
May 201009471.124.24$398
Apr 201009281.694.12$379
Mar 201008478.394.39$369
Feb 201007673.585.44$414
Jan 201008874.365.96$525
Dec 2009429171.445.48$3,500
Nov 200908774.593.75$326
Oct 200909072.544.11$370
Sep 200909765.543.06$297
Aug 2009010267.423.22$328
Jul 20092910261.133.46$2,126
Jun 2009010266.163.90$397
May 2009010254.743.93$400
Apr 200909446.773.59$337
Mar 2009010242.144.06$414
Feb 200904632.814.63$213
Jan 200906135.865.37$328
Dec 200807137.105.98$424
Nov 200808355.496.86$569
Oct 2008439575.246.92$3,893
Sep 2008092101.767.88$725
Aug 2008096114.228.48$814
Jul 2008097131.0811.39$1,105
Jun 2008094131.3313.03$1,225
May 2008095123.1711.57$1,100
Apr 2008094110.3110.45$983
Mar 20080106101.909.66$1,024
Feb 200808492.538.77$737
Jan 200808490.388.21$689
Dec 2007717088.337.30$6,783
Nov 200707991.677.29$576
Oct 200707582.856.92$519
Sep 200707575.846.24$468
Aug 200708569.066.39$543
Jul 200708070.906.39$511
Jun 200707762.007.55$581
May 200708558.747.85$667
Apr 20078734259.617.81$7,855
Mar 2007034856.927.30$2,541
Feb 2007033055.108.22$2,711
Jan 2007032050.306.73$2,153
Dec 2006035756.656.92$2,470
Nov 2006037154.207.62$2,826
Oct 2006035554.906.01$2,135
Sep 2006036660.085.04$1,844
Aug 2006034068.717.34$2,496
Jul 2006039569.376.34$2,505
Jun 2006038466.286.38$2,451
May 2006037766.016.42$2,422
Apr 2006039764.397.36$2,922
Mar 2006028456.707.08$2,012
Feb 2006034657.597.75$2,682
Jan 2006039460.598.93$3,520
Dec 2005034254.9413.42$4,588
Nov 2005040954.6910.59$4,331
Oct 2005040558.3413.80$5,587
Sep 2005040661.4512.08$4,904
Aug 2005032461.519.80$3,174
Jul 2005030855.697.84$2,416
Jun 2005036852.337.38$2,716
May 2005037045.226.65$2,461
Apr 200511537349.207.36$8,403
Mar 2005037350.377.15$2,669
Feb 2005065245.226.31$4,115
Jan 2005056043.166.32$3,540
Dec 2004046839.866.75$3,160
Nov 2004042245.286.33$2,671
Oct 2004048049.706.52$3,127
Sep 200411542543.245.28$7,218
Aug 2004040842.375.55$2,265
Jul 2004042838.286.08$2,604
Jun 2004045736.106.43$2,940
May 200411051137.486.49$7,442
Apr 2004035034.475.86$2,050
Mar 2004018934.365.53$1,045
Feb 2004039632.455.51$2,182
Jan 2004043832.036.30$2,759
Dec 2003015430.266.30$970
Nov 2003010528.804.60$482
Oct 2003010528.174.76$500
Sep 2003018026.314.75$855
Aug 2003020029.765.13$1,026
Jul 2003028829.415.17$1,489
Jun 2003035528.565.98$2,124
May 2003019926.595.97$1,189
Apr 2003020126.675.41$1,087
Mar 2003022931.146.10$1,396
Feb 2003020333.487.93$1,609
Jan 20039030730.315.58$4,442
Dec 2002029826.914.85$1,446
Nov 2002025924.664.14$1,071
Oct 2002026226.464.23$1,108
Sep 200210929927.443.64$4,078
Aug 2002023225.963.16$734
Jul 2002024224.583.06$741
Jun 2002036523.733.34$1,218
May 2002034824.663.58$1,247
Apr 2002017223.653.51$604
Mar 2002028422.003.10$881
Feb 2002010818.222.38$257
Jan 200209117.172.38$216
Dec 200111435616.932.36$2,772
Nov 2001035118.072.41$844
Oct 2001030019.782.53$759
Sep 2001034924.262.25$786
Aug 2001045824.873.05$1,398
Jul 2001041023.933.20$1,311
Jun 2001039524.563.82$1,511
May 20017532425.524.31$3,310
Apr 2001030524.685.34$1,627
Mar 2001034124.545.38$1,833
Feb 200112330227.755.77$5,155
Jan 2001040827.478.40$3,427
Dec 2000027626.889.12$2,518
Nov 2000015032.215.66$849
Oct 2000020131.235.15$1,034
Sep 2000044331.875.19$2,298
Aug 20006338229.644.54$3,602
Jul 2000024628.534.09$1,006
Jun 2000020629.304.40$906
May 2000026727.263.68$982
Apr 2000039924.513.12$1,243
Mar 2000031328.422.86$895
Feb 2000038227.622.73$1,042
Jan 20003239225.272.48$1,781
Dec 1999033624.282.42$814
Nov 19997038923.192.43$2,570
Oct 1999046420.982.80$1,301
Sep 1999043221.752.62$1,131
Aug 19998261619.262.88$3,351
Jul 1999046617.892.37$1,106
Jun 1999049915.942.36$1,179
May 1999058615.792.32$1,360
Apr 19995847215.102.21$1,918
Mar 1999042212.471.84$776
Feb 1999644679.981.82$1,488
Jan 1999026110.381.90$496
Dec 199803289.201.77$582
Nov 1998032110.892.19$702
Oct 1998036212.421.97$713
Sep 1998042712.592.08$889
Aug 19988257211.301.91$2,018
Jul 1998068211.742.24$1,526
Jun 1998048711.242.24$1,090
May 1998041212.622.21$909
Apr 1998054713.042.51$1,370
Mar 1998049512.802.31$1,143
Feb 199811343413.952.30$2,574
Jan 1998055714.702.15$1,200
Dec 1997056516.322.41$1,362
Nov 1997054218.193.09$1,674
Oct 1997046519.253.15$1,465
Sep 1997038917.742.95$1,149
Aug 1997049817.862.55$1,272
Jul 1997043717.582.25$982
Jun 1997045417.242.26$1,025
May 19976643218.972.31$2,249
Apr 1997040117.882.08$835
Mar 1997041118.951.94$797
Feb 1997038020.492.21$838
Jan 1997043023.483.54$1,522
Dec 19964342323.32$1,003
Nov 1996043721.97$0
Oct 19960023.31$0
Sep 19964346922.22$955
Aug 1996050220.26$0
Jul 1996049519.55$0
Jun 19963032918.73$562
May 1996049519.43$0
Apr 1996048921.51$0
Mar 19965043519.38$969
Feb 1996035316.98$0
Jan 1996035617.07$0
Dec 19954744017.19$808
Nov 1995040016.00$0
Oct 1995036215.43$0
Sep 1995040116.18$0
Aug 1995039515.92$0
Jul 19952646615.24$396
Jun 1995034916.41$0
May 1995032017.56$0
Apr 19951227917.73$213
Mar 19950016.44$0
Feb 19950016.58$0
Jan 19950015.92$0
Dec 19940015.03$0
Nov 19940015.90$0
Oct 19940015.58$0
Sep 1994045815.29$0
Aug 1994046116.13$0
Jul 1994047617.56$0
Jun 1994025517.09$0
May 1994054015.88$0
Apr 1994052014.14$0
Mar 19942664212.46$324
Feb 1994079012.50$0
Jan 19943355312.66$418
Dec 19932258912.33$271
Nov 1993050114.49$0
Oct 1993791,27515.85$1,252
Sep 199301,27015.03$0
Aug 199301,47015.66$0
Jul 199301,63915.46$0
Jun 1993641,61716.79$1,075
May 199301,44317.68$0
Apr 199301,42218.05$0
Mar 19931101,64418.14$1,995
Feb 1993053117.90$0
Jan 19930016.93$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.

Apr 2026 — as filed, then multipliedworked
Oil                    0 bbl  × $ 98.93 =         $0
Casinghead gas        33 Mcf  × $  2.87 =        $95

────────────────────────────────────────────────────
Month total                                      $95

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. 7B/O/17151 is the state's own key, not one this site invented.