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MILLICAN REEF UNIT

Operated by GUNGOLL, CARL E. EXPLORATION LLC (P-5 339348) in the MILLICAN field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 10733District 7CField 61600001Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$9.2 M
Jan 1993 – May 2026
Value, last 12 filed months
$186 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The MILLICAN field

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 2 leases and 9 wells, and the rule below applies to all of them.

Discovered
1948-11-02
as the register files it
Field class
Oil
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 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: “ASSOCIATED WITH MILLICAN (STRAWN REEF) GAS FIELD.”

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
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
OilDisposition128,086 bbl$6,000,540
Casinghead gasProduction971,479 Mcf$3,160,061
Total$9,160,600

207,886 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 (7)

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 31.9210, -100.6913. A lease has no coordinate of its own — that point is the mean of its wells, and they span 2.1 miles.

31.91958, -100.69172 · 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
28.6%
2 of 7 wells
With a plug date
28.6%
2 of 7 wells
Median depth
6,240 ft
7 wells filed one
Completion to plug
32.8 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
228.6%
A plug date is filed
228.6%
BothOn the schedule and plugged. Neither fact cancels the other.
228.6%
NeitherNo plug date, and not on the schedule.
571.4%

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 6,070 and 6,798 ft, median 6,240 ft, over the 7 wells that filed a depth.

Completions filed
Apr 1975 – Jan 2009
7 of 7 wells
Plug dates filed
Sep 2019 – Mar 2023
2 of 7 wells; 5 filed none

Last completion to plug: a median of 32.8 years across the 2 wells that filed both dates, with the middle half between 31.7 years and 34.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

7 wells

42-081319352A6,700 ftJan 2009——
42-081317666P6,070 ftDec 1998——
42-081301401P6,240 ftOct 1992Mar 2023Yes
42-0810141246,120 ftOct 1984——
42-081312542 S6,265 ftJun 1984Sep 2019Yes
42-081312553 S6,798 ftMay 1984——
42-081301703 P6,240 ftApr 1975——

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 202602,083106.413.05$6,344
Apr 20261892,35598.932.87$25,456
Mar 20261901,23289.753.15$20,933
Feb 20261911,58263.503.75$18,062
Jan 202602,32259.138.00$18,571
Dec 20251881,92856.664.41$19,161
Nov 20251881,48258.593.93$16,834
Oct 202501,96059.383.30$6,477
Sep 20251882,03662.743.08$18,060
Aug 20251872,06063.933.01$18,165
Jul 202518851866.743.32$14,264
Jun 202501,08966.483.13$3,407
May 202518893260.553.23$14,396
Apr 202518889462.363.54$14,891
Mar 202501,24767.704.27$5,323
Feb 20251921,45570.884.34$19,925
Jan 20251901,48274.324.28$20,462
Dec 202401,45168.993.12$4,529
Nov 20241861,53169.052.20$16,209
Oct 20241871,05371.372.28$15,749
Sep 20241881,87069.612.36$17,508
Aug 202403,63775.632.06$7,505
Jul 20243722,54279.932.15$35,191
Jun 20243722,60878.082.63$35,915
May 202402,54178.812.20$5,586
Apr 202436568484.451.66$31,959
Mar 20241902,21480.301.55$18,678
Feb 20243841,40976.091.78$31,732
Jan 202401,63673.023.30$5,395
Dec 202319132371.262.61$14,454
Nov 202318413077.892.81$14,697
Oct 202302,05585.443.09$6,344
Sep 20231882,04089.042.74$22,319
Aug 20231792,01280.522.67$19,791
Jul 20231832,06674.852.64$19,156
Jun 20231872,23568.962.26$17,943
May 20233591,16970.622.23$27,956
Apr 20231821,11078.122.24$16,702
Mar 202301,05972.852.39$2,534
Feb 20231842,59975.112.47$20,229
Jan 2023422076.533.39$32,296
Dec 202201,15976.415.73$6,640
Nov 20223741,45585.005.65$40,005
Oct 202201,78287.185.86$10,449
Sep 20221881,69384.888.16$29,779
Aug 202202,05294.529.13$18,729
Jul 202202,466101.587.54$18,599
Jun 202202,296115.097.98$18,316
May 20220370109.378.43$3,120
Apr 2022188854104.226.84$25,433
Mar 2022184941108.885.08$24,811
Feb 2022074291.054.86$3,605
Jan 202236885981.844.54$34,015
Dec 202118686971.323.90$16,654
Nov 202118883977.435.24$18,951
Oct 202119085379.795.71$20,034
Sep 2021087469.865.35$4,677
Aug 202118783566.024.22$15,870
Jul 202118983070.783.98$16,683
Jun 202118778369.493.38$15,642
May 202118873563.483.02$14,152
Apr 202119178760.362.76$13,700
Mar 2021076361.302.72$2,073
Feb 202118842057.805.55$13,197
Jan 202118654550.412.81$10,908
Dec 202018535044.642.68$9,195
Nov 20201841,71538.772.71$11,775
Oct 20203671,89236.972.48$18,257
Sep 20203671,71737.091.99$17,031
Aug 20205191,11339.982.39$23,404
Jul 2020015538.371.83$283
Jun 20200034.901.69$0
May 2020031116.921.81$564
Apr 20203231,98614.751.80$8,348
Mar 20203441,97830.341.86$14,109
Feb 20201721,67049.881.98$11,887
Jan 20203201,92957.252.09$22,361
Dec 20194862,18259.012.30$33,707
Nov 20193432,04355.302.75$24,588
Oct 20193292,11253.472.42$22,700
Sep 20191622,10155.052.66$14,501
Aug 20193322,10953.112.30$22,492
Jul 20196711,95756.272.46$42,572
Jun 201901,67252.782.49$4,165
May 20193241,93858.482.74$24,258
Apr 20193201,76662.632.75$24,899
Mar 20191632,10356.803.06$15,698
Feb 20194011,92750.852.79$25,771
Jan 20193252,11646.033.23$21,791
Dec 20183382,09946.594.19$24,533
Nov 20183302,05752.934.24$26,183
Oct 20185351,95461.443.40$39,510
Sep 20181801,76959.543.11$16,215
Aug 20183672,29459.403.07$28,834
Jul 20183632,31065.142.93$30,418
Jun 20183652,23260.183.08$28,833
May 20183652,36065.382.90$30,710
Apr 20181572,34763.842.90$16,831
Mar 20183652,46761.222.79$29,220
Feb 20183542,12861.782.77$27,756
Jan 20183652,29462.874.01$32,145
Dec 20175352,43557.272.92$37,753
Nov 20173472,37855.423.12$26,646
Oct 20171692,23249.292.98$14,990
Sep 20173392,07047.523.09$22,500
Aug 20173322,02845.373.00$21,156
Jul 20173412,53843.873.09$22,795
Jun 20173381,78742.493.09$19,879
May 20171752,25445.373.26$15,295
Apr 20175362,33347.933.21$33,183
Mar 20173582,40546.772.98$23,919
Feb 20173632,13050.452.95$24,602
Jan 20173712,63749.413.42$27,346
Dec 20161832,22948.763.72$17,221
Nov 20163402,04842.492.64$19,862
Oct 20163402,23446.193.09$22,608
Sep 20163632,14541.553.10$21,734
Aug 20163582,02041.442.92$20,743
Jul 20165332,37641.622.92$29,132
Jun 20161882,36745.352.69$14,883
May 20163602,41142.521.99$20,108
Apr 20163722,34036.561.99$18,259
Mar 20163612,23833.011.79$15,932
Feb 20163681,92926.472.06$13,722
Jan 20163731,83127.352.36$14,531
Dec 20155402,09232.362.00$21,661
Nov 20153662,12438.792.17$18,801
Oct 20151891,73143.552.43$12,431
Sep 20151771,39942.992.76$11,468
Aug 20151831,44240.162.87$11,491
Jul 20151771,48048.152.95$12,881
Jun 20151801,58356.152.88$14,671
May 2015093055.212.96$2,749
Apr 20153521,14749.822.71$20,641
Mar 20151951,30242.892.93$12,185
Feb 20153771,05644.662.98$19,980
Jan 201501,23443.433.10$3,826
Dec 20143701,44854.693.59$25,436
Nov 20141711,38170.464.25$17,920
Oct 20141811,52178.303.90$20,106
Sep 20143711,50486.164.05$38,050
Aug 20141841,54289.394.04$22,670
Jul 20143691,54896.564.18$42,101
Jun 20141891,57098.164.74$25,989
May 20141911,55294.734.73$25,429
Apr 20141911,55895.944.81$25,817
Mar 20141931,61395.895.06$26,663
Feb 20141891,35697.406.19$26,805
Jan 20141861,52890.404.86$24,242
Dec 20131801,45291.824.35$22,850
Nov 20133851,36988.853.74$39,325
Oct 20131871,85197.423.78$25,213
Sep 20133641,930104.113.72$45,071
Aug 20131862,187104.253.52$27,094
Jul 20133712,432102.523.72$47,076
Jun 20133602,13394.403.93$42,374
May 20131742,27094.834.15$25,919
Apr 20133712,19993.964.28$44,277
Mar 20135402,22593.623.91$59,261
Feb 20133701,88991.233.42$40,215
Jan 20131922,02291.603.42$24,502
Dec 20123812,19386.773.42$40,560
Nov 20125532,13886.953.62$55,834
Oct 201202,15789.383.40$7,333
Sep 20125622,17994.672.92$59,564
Aug 20121852,39992.662.91$24,119
Jul 20123582,40585.133.02$37,742
Jun 20121942,30679.822.52$21,294
May 20123732,37491.612.49$40,078
Apr 20123752,336101.652.00$42,783
Mar 20123842,293105.052.22$45,434
Feb 20123622,083101.102.57$41,952
Jan 20125602,30298.092.73$61,224
Dec 20113662,17296.873.24$42,491
Nov 20111872,25895.723.31$25,377
Oct 20113712,25284.983.65$39,744
Sep 20111852,24683.623.99$24,422
Aug 20113592,47083.404.15$40,189
Jul 20115792,60594.144.52$66,274
Jun 20111802,39992.904.64$27,853
May 20113752,37898.134.40$47,273
Apr 20111862,340105.964.33$29,848
Mar 20113712,38996.364.06$45,443
Feb 20113772,52985.644.18$42,857
Jan 20113682,31886.504.59$42,469
Dec 20103722,32085.734.35$41,978
Nov 20105352,32280.843.80$52,062
Oct 20101862,51878.103.51$23,362
Sep 20103622,42572.633.98$35,942
Aug 20103472,40973.684.42$36,213
Jul 20101792,33272.554.74$24,032
Jun 20103312,08470.364.91$33,522
May 20104492,57571.124.24$42,839
Apr 20103502,40681.694.12$38,511
Mar 20101762,52978.394.39$24,896
Feb 20103512,24773.585.44$38,056
Jan 20103722,79374.365.96$44,320
Dec 20093602,65371.445.48$40,267
Nov 20093672,41374.593.75$36,427
Oct 20095302,65672.544.11$49,363
Sep 20093642,54565.543.06$31,656
Aug 20095312,55867.423.22$44,033
Jul 20093622,62061.133.46$31,206
Jun 20093522,31066.163.90$32,286
May 20095482,96254.743.93$41,626
Apr 20098962,92046.773.59$52,381
Mar 20096972,32342.144.06$38,801
Feb 20093522,37932.814.63$22,571
Jan 20091691,97835.865.37$16,684
Dec 20086692,14337.105.98$37,629
Nov 20081692,07055.496.86$23,579
Oct 20083332,15575.246.92$39,972
Sep 20081722,155101.767.88$34,478
Aug 20083402,482114.228.48$59,890
Jul 20081691,949131.0811.39$44,351
Jun 20081571,804131.3313.03$44,130
May 2008337823123.1711.57$51,034
Apr 20083421,632110.3110.45$54,788
Mar 20081751,643101.909.66$33,711
Feb 20081631,56192.538.77$28,773
Jan 20083431,64190.388.21$44,466
Dec 20073271,65588.337.30$40,969
Nov 20071751,79491.677.29$29,124
Oct 20075012,19082.856.92$56,667
Sep 20071702,19375.846.24$26,586
Aug 20073282,19069.066.39$36,641
Jul 20073272,14770.906.39$36,899
Jun 20071692,16962.007.55$26,851
May 20074832,21358.747.85$45,735
Apr 20071632,16059.617.81$26,576
Mar 20073252,17956.927.30$34,410
Feb 20073371,93655.108.22$34,475
Jan 20073492,25450.306.73$32,717
Dec 20063392,16556.656.92$34,183
Nov 20065012,16954.207.62$43,677
Oct 20061702,20754.906.01$22,605
Sep 20064902,19060.085.04$40,471
Aug 20063172,27968.717.34$38,509
Jul 20061672,31169.376.34$26,243
Jun 20064732,40266.286.38$46,685
May 20063292,28566.016.42$36,398
Apr 20061612,04664.397.36$25,426
Mar 20065042,25456.707.08$44,542
Feb 20063291,85357.597.75$33,310
Jan 20063182,20860.598.93$38,992
Dec 20054861,99354.9413.42$53,438
Nov 20051582,16654.6910.59$31,575
Oct 20054802,43058.3413.80$61,527
Sep 20051512,09461.4512.08$34,572
Aug 20053202,32861.519.80$42,490
Jul 20051622,41055.697.84$27,925
Jun 20054842,15152.337.38$41,204
May 20053242,39845.226.65$30,601
Apr 20051622,18449.207.36$24,046
Mar 20054922,48550.377.15$42,562
Feb 20053242,21445.226.31$28,626
Jan 20055022,42243.166.32$36,979
Dec 20041702,39439.866.75$22,938
Nov 20044892,47745.286.33$37,822
Oct 20043252,58649.706.52$33,001
Sep 20043252,60043.245.28$27,791
Aug 20043322,28042.375.55$26,722
Jul 20044831,98138.286.08$30,542
Jun 20043312,55636.106.43$28,392
May 20043292,72637.486.49$30,035
Apr 20043222,48934.475.86$25,681
Mar 20044582,38834.365.53$28,943
Feb 20043182,54132.455.51$24,319
Jan 20043072,78332.036.30$27,365
Dec 20034672,67130.266.30$30,963
Nov 20033122,75328.804.60$21,636
Oct 20033102,25828.174.76$19,480
Sep 20034612,71026.314.75$25,000
Aug 20034302,49329.765.13$25,585
Jul 20033012,42129.415.17$21,371
Jun 20033082,17128.565.98$21,785
May 20034612,16326.595.97$25,177
Apr 20031541,90026.675.41$14,381
Mar 20034451,43531.146.10$22,605
Feb 20034871,52133.487.93$28,360
Jan 20034872,55730.315.58$29,034
Dec 20024812,55326.914.85$25,335
Nov 20024742,49024.664.14$21,990
Oct 20024702,41926.464.23$22,666
Sep 20023132,30627.443.64$16,971
Aug 20022652,42725.963.16$14,559
Jul 20024622,52624.583.06$19,090
Jun 20024462,35123.733.34$18,432
May 20023052,48924.663.58$16,442
Apr 20023132,48023.653.51$16,113
Mar 20023082,49022.003.10$14,502
Feb 20024552,29818.222.38$13,749
Jan 20024692,55717.172.38$14,127
Dec 20014852,53116.932.36$14,195
Nov 20011622,47518.072.41$8,881
Oct 20014862,48719.782.53$15,902
Sep 20013172,60524.262.25$13,555
Aug 20014882,70124.873.05$20,383
Jul 20013162,65223.933.20$16,041
Jun 20014782,64424.563.82$21,851
May 20013012,65425.524.31$19,113
Apr 20014762,59024.685.34$25,566
Mar 20013152,62324.545.38$21,833
Feb 20014662,43927.755.77$26,997
Jan 20014252,66527.478.40$34,057
Dec 20004592,68826.889.12$36,859
Nov 20004522,65532.215.66$29,581
Oct 20004672,84131.235.15$29,203
Sep 20004752,99931.875.19$30,693
Aug 20003353,15729.644.54$24,265
Jul 20004453,24828.534.09$25,979
Jun 20005923,12529.304.40$31,087
May 20004613,06627.263.68$23,849
Apr 20004543,04124.513.12$20,603
Mar 20004673,21928.422.86$22,478
Feb 20004653,02327.622.73$21,086
Jan 20006573,19025.272.48$24,515
Dec 19995193,31624.282.42$20,638
Nov 19996533,25723.192.43$23,071
Oct 19993343,49520.982.80$16,806
Sep 19996443,51121.752.62$23,202
Aug 19996103,55519.262.88$21,971
Jul 19995093,63417.892.37$17,727
Jun 19998283,65615.942.36$21,834
May 19995103,88815.792.32$17,077
Apr 19998273,71215.102.21$20,684
Mar 19998363,59012.471.84$17,025
Feb 19998393,5249.981.82$14,779
Jan 19998154,22610.381.90$16,489
Dec 19984184,1329.201.77$11,173
Nov 19981213,00710.892.19$7,890
Oct 19981843,34912.421.97$8,880
Sep 19981263,31312.592.08$8,486
Aug 19982683,50611.301.91$9,716
Jul 19981193,63911.742.24$9,538
Jun 19981253,27311.242.24$8,728
May 19982523,65812.622.21$11,251
Apr 19982313,33013.042.51$11,355
Mar 19982373,40312.802.31$10,893
Feb 19983643,07313.952.30$12,143
Jan 19981133,31614.702.15$8,806
Dec 19973253,30616.322.41$13,275
Nov 19972183,29018.193.09$14,126
Oct 19972333,49119.253.15$15,481
Sep 19972433,32517.742.95$14,136
Aug 19971162,17617.862.55$7,631
Jul 19972313,50717.582.25$11,941
Jun 19973373,32817.242.26$13,322
May 19971163,30018.972.31$9,819
Apr 19972263,36517.882.08$11,049
Mar 19972313,51818.951.94$11,199
Feb 19973443,13120.492.21$13,955
Jan 19972383,77423.483.54$18,947
Dec 19963643,47023.32—$8,488
Nov 19962413,45921.97—$5,295
Oct 19962233,63023.31—$5,198
Sep 19963533,58222.22—$7,844
Aug 19962703,52120.26—$5,470
Jul 19963963,54519.55—$7,742
Jun 19961353,33018.73—$2,529
May 19962673,63919.43—$5,188
Apr 19964103,61021.51—$8,819
Mar 19964074,05119.38—$7,888
Feb 19962694,08016.98—$4,568
Jan 19964154,30817.07—$7,084
Dec 19955394,42017.19—$9,265
Nov 19954077,16116.00—$6,512
Oct 19954094,69215.43—$6,311
Sep 19954144,46516.18—$6,699
Aug 19954064,89215.92—$6,464
Jul 19954024,47815.24—$6,126
Jun 19952714,28216.41—$4,447
May 19954054,66317.56—$7,112
Apr 19954084,53917.73—$7,234
Mar 19954135,77816.44—$6,790
Feb 19955404,09516.58—$8,953
Jan 19954164,32115.92—$6,623
Dec 19944154,32515.03—$6,237
Nov 19945424,35915.90—$8,618
Oct 19944244,57515.58—$6,606
Sep 19945444,58815.29—$8,318
Aug 19944064,63216.13—$6,549
Jul 19942694,30917.56—$4,724
Jun 19945384,69017.09—$9,194
May 19942754,57515.88—$4,367
Apr 19945514,49314.14—$7,791
Mar 19944034,44612.46—$5,021
Feb 19942803,86912.50—$3,500
Jan 19945464,42012.66—$6,912
Dec 19932754,49012.33—$3,391
Nov 19935504,27614.49—$7,970
Oct 19935384,54715.85—$8,527
Sep 19935493,70315.03—$8,251
Aug 199303,69215.66—$0
Jul 19935024,39615.46—$7,761
Jun 19933824,42316.79—$6,414
May 19933914,65817.68—$6,913
Apr 19935074,50018.05—$9,151
Mar 19936544,87018.14—$11,864
Feb 19935204,25717.90—$9,308
Jan 19937764,78216.93—$13,138

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                    0 bbl  × $106.41 =         $0
Casinghead gas     2,083 Mcf  × $  3.05 =     $6,344

────────────────────────────────────────────────────
Month total                                   $6,344

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/10733 is the state's own key, not one this site invented.