MOBIL-COOK

Operated by EXTEX OPERATING COMPANY (P-5 257062) in the HELUMA, EAST (DEVONIAN) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 6330District 7CField 40296500Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$25.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$437 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 20 leases and 31 wells, and the rule below applies to all of them.

Discovered
1973-10-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

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: MAXIMUM GAS LIMIT: 500 MCF

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
OilDisposition309,993 bbl$13,326,880
Casinghead gasProduction3,279,988 Mcf$11,863,123
Total$25,190,003

587,225 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 (5)

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 31.3039, -102.2381. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

31.30339, -102.23719 · 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 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
10,580 ft
5 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.
5100.0%

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 10,558 and 10,665 ft, median 10,580 ft, over the 5 wells that filed a depth.

Completions filed
Sep 1973 – Aug 1999
5 of 5 wells

5 wells

42-46130206310,565 ftAug 1999
42-461301461 U10,650 ftMay 1994
42-46130390510,665 ftJan 1985
42-461302684 U10,558 ftJul 1974
42-461301722 U10,580 ftSep 1973

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 20263560106.413.05$37,882
Apr 2026366098.932.87$36,208
Mar 20267342,51989.753.15$73,810
Feb 20265512,87463.503.75$45,767
Jan 20263663,87859.138.00$52,658
Dec 20251813,75756.664.41$26,836
Nov 20253643,98558.593.93$36,974
Oct 2025364059.383.30$21,614
Sep 2025185062.743.08$11,607
Aug 2025365063.933.01$23,334
Jul 2025369066.743.32$24,627
Jun 20255453,04466.483.13$45,755
May 2025184060.553.23$11,141
Apr 20255434,64462.363.54$50,316
Mar 20255504,80867.704.27$57,757
Feb 2025367070.884.34$26,013
Jan 2025726074.324.28$53,956
Dec 2024539068.993.12$37,186
Nov 20241,0983,48369.052.20$83,474
Oct 20241824,85771.372.28$24,070
Sep 20243623,77369.612.36$34,120
Aug 2024060775.632.06$1,253
Jul 202417980579.932.15$16,035
Jun 20241844,21378.082.63$25,464
May 20241781,00978.812.20$16,246
Apr 20243652,28484.451.66$34,614
Mar 20241834,61880.301.55$21,830
Feb 20241822,71776.091.78$18,695
Jan 2024177073.023.30$12,925
Dec 2023186071.262.61$13,254
Nov 20230077.892.81$0
Oct 2023161085.443.09$13,756
Sep 2023178089.042.74$15,849
Aug 2023359080.522.67$28,907
Jul 2023183074.852.64$13,698
Jun 20231812,90668.962.26$19,045
May 2023541070.622.23$38,205
Apr 2023361078.122.24$28,201
Mar 2023361072.852.39$26,299
Feb 20233673,11475.112.47$35,244
Jan 20237302,80176.533.39$65,356
Dec 2022365076.415.73$27,890
Nov 202205185.005.65$288
Oct 20223604,08987.185.86$55,362
Sep 20225474,58284.888.16$83,835
Aug 20221835,80894.529.13$70,308
Jul 20221815,266101.587.54$58,103
Jun 20223634,942115.097.98$81,201
May 20223585,077109.378.43$81,969
Apr 20223674,361104.226.84$68,068
Mar 20223704,709108.885.08$64,190
Feb 20225282,31091.054.86$59,298
Jan 20225585,36281.844.54$69,998
Dec 20211835,35571.323.90$33,931
Nov 20217396,30777.435.24$90,250
Oct 20213632,80579.795.71$44,991
Sep 202136140769.865.35$27,397
Aug 20213586,00966.024.22$48,997
Jul 20215383,53670.783.98$52,160
Jun 20215581,17569.493.38$42,748
May 202155380663.483.02$37,537
Apr 20213686,33560.362.76$39,687
Mar 202153312861.302.72$33,021
Feb 20213732,31757.805.55$34,414
Jan 2021367050.412.81$18,500
Dec 20203644,07044.642.68$27,138
Nov 20205476,54138.772.71$38,911
Oct 20203606,58236.972.48$29,622
Sep 20203616,46737.091.99$26,266
Aug 20205415,79839.982.39$35,458
Jul 20203435,66038.371.83$23,491
Jun 20203574,30734.901.69$19,739
May 20207046,53416.921.81$23,769
Apr 20201846,72414.751.80$14,847
Mar 20207017,43630.341.86$35,071
Feb 20205536,92049.881.98$41,290
Jan 20205366,85857.252.09$45,052
Dec 20197237,69559.012.30$60,396
Nov 20197126,37055.302.75$56,896
Oct 20191816,32053.472.42$24,963
Sep 20193592,51255.052.66$26,438
Aug 20193586,95253.112.30$35,033
Jul 20195346,28356.272.46$45,505
Jun 20195387,88652.782.49$48,041
May 20197151,95658.482.74$47,173
Apr 20195437,43762.632.75$54,465
Mar 20197218,14356.803.06$65,887
Feb 20193557,87350.852.79$40,035
Jan 20195572,57146.033.23$33,938
Dec 20187256,72846.594.19$61,937
Nov 20183604,22652.934.24$36,961
Oct 20183546,04861.443.40$42,301
Sep 20183493,76959.543.11$32,494
Aug 20185407,84459.403.07$56,130
Jul 20185255,73565.142.93$51,013
Jun 20185044,09660.183.08$42,934
May 20185278,20865.382.90$58,265
Apr 20187307,86263.842.90$69,409
Mar 20185498,16661.222.79$56,367
Feb 20185597,05261.782.77$54,042
Jan 20185527,10362.874.01$63,182
Dec 20175617,50257.272.92$54,046
Nov 20177408,09055.423.12$66,238
Oct 20175571,33349.292.98$31,432
Sep 20175443,87247.523.09$37,805
Aug 20177347,29345.373.00$55,213
Jul 20176945,06643.873.09$46,086
Jun 20175424,08942.493.09$35,653
May 20177346,80745.373.26$55,516
Apr 20175477,41447.933.21$50,029
Mar 20177227,01146.772.98$54,687
Feb 20175695,70750.452.95$45,557
Jan 20177581,69849.413.42$43,258
Dec 20167367,53548.763.72$63,939
Nov 20167127,63142.492.64$50,432
Oct 20167137,96346.193.09$57,541
Sep 20165347,29141.553.10$44,794
Aug 20167248,11341.442.92$53,728
Jul 20167117,39641.622.92$51,220
Jun 20168651,60545.352.69$43,539
May 20161,4158,71642.521.99$77,520
Apr 20161855,56536.561.99$17,844
Mar 20163417,06833.011.79$23,936
Feb 20165486,35826.472.06$27,626
Jan 20165596,74027.352.36$31,224
Dec 20157081,80232.362.00$26,517
Nov 20153793,57038.792.17$22,439
Oct 20155592,94243.552.43$31,483
Sep 20155176,93342.992.76$41,350
Aug 20158507,73940.162.87$56,366
Jul 20155107,75148.152.95$47,384
Jun 20156716,99656.152.88$57,845
May 20155186,42055.212.96$47,573
Apr 201504,63049.822.71$12,531
Mar 20153474,02042.892.93$26,680
Feb 20153404,85744.662.98$29,640
Jan 20151746,50843.433.10$27,736
Dec 20143451,49654.693.59$24,241
Nov 20143435,93670.464.25$49,407
Oct 20143426,43378.303.90$51,873
Sep 20143416,27786.164.05$54,774
Aug 20143486,56889.394.04$57,610
Jul 20143416,70396.564.18$60,943
Jun 20147116,57698.164.74$100,941
May 201404,89794.734.73$23,146
Apr 20145205,09195.944.81$74,372
Mar 20145267,94095.895.06$90,589
Feb 20147276,88497.406.19$113,436
Jan 20145447,53190.404.86$85,784
Dec 20135407,03891.824.35$80,230
Nov 20133785,13288.853.74$52,770
Oct 20137487,71197.423.78$102,013
Sep 20133736,309104.113.72$62,288
Aug 20137416,698104.253.52$100,844
Jul 20135626,170102.523.72$80,555
Jun 20133777,01494.403.93$63,178
May 20134887,23894.834.15$76,308
Apr 20137437,34093.964.28$101,246
Mar 20137197,29193.623.91$95,842
Feb 20133625,71291.233.42$52,560
Jan 20131,0638,23091.603.42$125,517
Dec 20125437,53286.773.42$72,877
Nov 20121787,20186.953.62$41,580
Oct 20125326,57089.383.40$69,886
Sep 20121747,62994.672.92$38,737
Aug 20125437,66992.662.91$72,617
Jul 20125197,07285.133.02$65,546
Jun 20126996,72079.822.52$72,722
May 20125238,58291.612.49$69,267
Apr 20123538,051101.652.00$51,959
Mar 20129037,077105.052.22$110,586
Feb 20123537,222101.102.57$54,251
Jan 20127068,35898.092.73$92,103
Dec 20115368,28996.873.24$78,777
Nov 20115308,23995.723.31$78,013
Oct 20118786,96784.983.65$100,032
Sep 20118808,54683.623.99$107,648
Aug 20117398,93983.404.15$98,723
Jul 201109,03294.144.52$40,800
Jun 20111,2708,91092.904.64$159,324
May 20111827,94098.134.40$52,834
Apr 20113482,969105.964.33$49,740
Mar 20115247,73196.364.06$81,860
Feb 20113517,15685.644.18$59,972
Jan 20118968,49686.504.59$116,490
Dec 20103468,62385.734.35$67,153
Nov 20108895,31380.843.80$92,031
Oct 20108739,11678.103.51$100,168
Sep 20105528,21672.633.98$72,787
Aug 20105518,92473.684.42$80,036
Jul 20103708,18772.554.74$65,621
Jun 20107238,98670.364.91$94,995
May 20107369,37071.124.24$92,028
Apr 20107236,55181.694.12$86,070
Mar 20107049,26678.394.39$95,852
Feb 20109028,38573.585.44$112,003
Jan 20107118,35974.365.96$102,724
Dec 20097259,13871.445.48$101,905
Nov 20097379,00974.593.75$88,770
Oct 20097199,54572.544.11$91,389
Sep 20097289,05065.543.06$75,449
Aug 20091,0808,59667.423.22$100,480
Jul 20093509,10061.133.46$52,922
Jun 20091,2149,52166.163.90$117,403
May 20093658,15554.743.93$51,995
Apr 20095138,54046.773.59$54,630
Mar 20096986,82942.144.06$57,133
Feb 20095285,97432.814.63$45,001
Jan 20098768,54335.865.37$77,298
Dec 20085328,80137.105.98$72,342
Nov 20088898,63955.496.86$108,597
Oct 20087029,79075.246.92$120,585
Sep 20087236,745101.767.88$126,703
Aug 20081,0489,616114.228.48$201,275
Jul 20081,0389,881131.0811.39$248,600
Jun 20083418,623131.3313.03$157,164
May 200869510,005123.1711.57$201,404
Apr 20085179,664110.3110.45$158,066
Mar 20088897,242101.909.66$160,576
Feb 20086929,07192.538.77$143,589
Jan 20081,0539,43290.388.21$172,567
Dec 20078889,03088.337.30$144,374
Nov 20077049,15791.677.29$131,306
Oct 20076449,42982.856.92$118,623
Sep 20075189,54975.846.24$98,911
Aug 200799810,63169.066.39$136,832
Jul 200784410,49170.906.39$126,855
Jun 20071,0319,91462.007.55$138,757
May 200750710,48758.747.85$112,065
Apr 20076934,81459.617.81$78,884
Mar 200785610,31756.927.30$124,058
Feb 20073258,99255.108.22$91,786
Jan 200781510,38750.306.73$110,866
Dec 20061,19210,71056.656.92$141,623
Nov 20068526,62054.207.62$96,606
Oct 200682510,86554.906.01$110,632
Sep 20061,02410,79060.085.04$115,873
Aug 200648811,06668.717.34$114,754
Jul 20061,02611,24669.376.34$142,504
Jun 20061,3586,76466.286.38$133,189
May 20065185,41266.016.42$68,965
Apr 20061,03611,38764.397.36$150,522
Mar 200686011,44456.707.08$129,819
Feb 200686010,55857.597.75$131,364
Jan 20061,37012,54560.598.93$195,077
Dec 20056819,57254.9413.42$165,826
Nov 20051,0028,28354.6910.59$142,503
Oct 20056669,37158.3413.80$168,135
Sep 20055108,15561.4512.08$129,844
Aug 20058688,46961.519.80$136,360
Jul 20054867,52255.697.84$86,065
Jun 20055029,44952.337.38$96,013
May 20051,02611,32445.226.65$121,713
Apr 200585011,38949.207.36$125,649
Mar 20051,02710,88850.377.15$129,632
Feb 200585210,39945.226.31$104,165
Jan 20051,19911,23043.166.32$122,747
Dec 20041,02411,13939.866.75$116,017
Nov 200452010,53445.286.33$90,230
Oct 20041,36911,08249.706.52$140,240
Sep 200484511,37143.245.28$96,621
Aug 200482712,12742.375.55$102,353
Jul 20041,16512,09638.286.08$118,190
Jun 20041,19112,07636.106.43$120,680
May 200484311,52937.486.49$106,472
Apr 20041,0048,68834.475.86$85,506
Mar 200485811,55934.365.53$93,404
Feb 20041,04310,71032.455.51$92,853
Jan 200486011,20032.036.30$98,102
Dec 20031,17911,56430.266.30$108,549
Nov 20031,08111,08128.804.60$82,052
Oct 200368911,94528.174.76$76,263
Sep 20031,07811,08726.314.75$81,018
Aug 200391411,28729.765.13$85,100
Jul 200383310,21429.415.17$77,313
Jun 20031,09410,82128.565.98$95,986
May 20031,09311,20726.595.97$95,999
Apr 200373611,02126.675.41$79,223
Mar 20031,49310,69631.146.10$111,695
Feb 20037269,85433.487.93$102,408
Jan 20031,10010,96530.315.58$94,548
Dec 20021,28411,09226.914.85$88,390
Nov 20021,61010,33724.664.14$82,466
Oct 200290711,03726.464.23$70,676
Sep 20021,28510,67627.443.64$74,070
Aug 20025649,40625.963.16$44,404
Jul 200289310,62224.583.06$54,472
Jun 20021,22510,58923.733.34$64,418
May 200251910,13824.663.58$49,133
Apr 20021,06310,37123.653.51$61,566
Mar 20021,25411,01422.003.10$61,761
Feb 200289710,20118.222.38$40,578
Jan 20021,06710,53317.172.38$43,343
Dec 20011,24310,14916.932.36$45,040
Nov 200167210,81818.072.41$38,166
Oct 20011,21211,37319.782.53$52,734
Sep 20011,02610,93524.262.25$49,509
Aug 20011,02812,02824.873.05$62,290
Jul 20011,39611,98823.933.20$71,733
Jun 20011,22012,09024.563.82$76,197
May 200188512,81825.524.31$77,796
Apr 20011,26611,44224.685.34$92,292
Mar 20011,41813,09824.545.38$105,218
Feb 20011,22910,91127.755.77$97,029
Jan 20019289,82427.478.40$108,002
Dec 20005358,34426.889.12$90,499
Nov 20001,06210,31732.215.66$92,581
Oct 20001,22512,30931.235.15$101,593
Sep 200084512,58031.875.19$92,176
Aug 20001,18213,42829.644.54$96,008
Jul 20001,23113,78828.534.09$91,510
Jun 20001,21413,33929.304.40$94,225
May 20001,06411,61227.263.68$71,734
Apr 20001,06313,18524.513.12$67,139
Mar 20001,39413,69028.422.86$78,767
Feb 20001,38912,47127.622.73$72,366
Jan 20001,22013,55825.272.48$64,460
Dec 19991,59113,86224.282.42$72,227
Nov 19991,40714,72123.192.43$68,459
Oct 19991,59415,99420.982.80$78,285
Sep 19991,59113,53921.752.62$70,061
Aug 19991,05612,01919.262.88$54,900
Jul 19991,08911,30017.892.37$46,290
Jun 199969911,74115.942.36$38,875
May 19991,03912,67215.792.32$45,818
Apr 199988312,24615.102.21$40,373
Mar 19992,25012,66612.471.84$51,342
Feb 19991,05511,2549.981.82$30,986
Jan 19991,07212,44910.381.90$34,780
Dec 19981,24512,7609.201.77$34,082
Nov 199871513,40410.892.19$37,084
Oct 19981,0439,44812.421.97$31,559
Sep 19981,05312,68112.592.08$39,667
Aug 19981,21513,15811.301.91$38,826
Jul 19981,03913,32311.742.24$42,005
Jun 199836112,37411.242.24$31,742
May 19981,07911,97212.622.21$40,031
Apr 199890412,41013.042.51$42,879
Mar 19981,12113,13712.802.31$44,688
Feb 19981,14512,51313.952.30$44,742
Jan 19981,35213,82814.702.15$49,671
Dec 19971,74212,87716.322.41$59,477
Nov 199796613,64118.193.09$59,698
Oct 19971,3613,97619.253.15$38,723
Sep 19971956,17417.742.95$21,703
Aug 19971,3609,08017.862.55$47,487
Jul 19971,12912,85517.582.25$48,732
Jun 199773111,48117.242.26$38,517
May 19971,64413,25918.972.31$61,795
Apr 19971,11712,47617.882.08$45,957
Mar 19971,27313,07518.951.94$49,478
Feb 199793210,60020.492.21$42,479
Jan 19971,27312,06523.483.54$72,597
Dec 199690112,12823.32$21,011
Nov 19961,22112,42921.97$26,825
Oct 19961,28912,25523.31$30,047
Sep 199693412,21422.22$20,753
Aug 199699213,19920.26$20,098
Jul 19967307,68019.55$14,272
Jun 19967028,93318.73$13,148
May 199684510,65119.43$16,418
Apr 19961,12110,63721.51$24,113
Mar 199684810,07019.38$16,434
Feb 19969399,26416.98$15,944
Jan 19961,38010,49217.07$23,557
Dec 19959829,90917.19$16,881
Nov 199584011,60716.00$13,440
Oct 19951,19010,47015.43$18,362
Sep 19951,50810,30316.18$24,399
Aug 19951,38010,48415.92$21,970
Jul 19951,09511,07815.24$16,688
Jun 19951,0658,55116.41$17,477
May 199599211,56817.56$17,420
Apr 19951,36011,17417.73$24,113
Mar 19951,46613,00516.44$24,101
Feb 19951,09511,98516.58$18,155
Jan 19951,45913,47115.92$23,227
Dec 19941,55112,99215.03$23,312
Nov 19941,23413,03615.90$19,621
Oct 19941,30714,41615.58$20,363
Sep 19941,43614,30315.29$21,956
Aug 19941,60714,83316.13$25,921
Jul 19941,50314,54717.56$26,393
Jun 19941,57014,35017.09$26,831
May 19948958,15815.88$14,213
Apr 19941,06511,92714.14$15,059
Mar 19941,45013,11912.46$18,067
Feb 19941,41211,86612.50$17,650
Jan 19941,59213,34712.66$20,155
Dec 19931,45713,15012.33$17,965
Nov 19931,59813,23314.49$23,155
Oct 19931,38914,16715.85$22,016
Sep 19931,55014,08015.03$23,297
Aug 19931,52114,81115.66$23,819
Jul 19931,39614,76315.46$21,582
Jun 19931,79014,79616.79$30,054
May 19931,02812,49817.68$18,175
Apr 19931,50714,09918.05$27,201
Mar 19931,81812,08918.14$32,979
Feb 19931,67014,15417.90$29,893
Jan 19931,67114,93416.93$28,290

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                  356 bbl  × $106.41 =    $37,882
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                  $37,882

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. 7C/O/6330 is the state's own key, not one this site invented.