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ZAVISCH

Operated by GTG OPERATING, LLC (P-5 337080) in the A.W.P. (OLMOS) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 12066District 01Field 00256500OilCasinghead gasSaveExport
Value, all time
$25.9 M
Jan 1993 – May 2026
Value, last 12 filed months
$128 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The A.W.P. (OLMOS) 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 821 leases and 1,336 wells, and the rule below applies to all of them.

Discovered
1981-12-20
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2015-01-27.

The Commission's schedule remark for this field reads: “RED. THE ALLOCATION FORMULA REMAINS SUSPENDED.”

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
OilDisposition360,852 bbl$19,528,995
Casinghead gasProduction1,469,649 Mcf$6,335,249
Total$25,864,244

110,381 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 (11)

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 28.4163, -98.4489. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.3 miles.

28.41676, -98.45350 · 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
9.1%
1 of 11 wells
With a plug date
9.1%
1 of 11 wells
Median depth
10,350 ft
11 wells filed one
Completion to plug
20.4 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
19.1%
A plug date is filed
19.1%
BothOn the schedule and plugged. Neither fact cancels the other.
19.1%
NeitherNo plug date, and not on the schedule.
1090.9%

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

Total depth in feet, 11 of 11 wells. Median 10,350 ft, with the middle half between 10,283 and 10,475 ft; the shallowest is 10,250 ft and the deepest 10,500 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 11 of 11 wells, Jun 1988 – Apr 2013. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jun 1988 – Apr 2013
11 of 11 wells
Plug dates filed
Jul 2011
1 of 11 wells; 10 filed none

Last completion to plug: a median of 20.4 years across the 1 well that filed both dates, with the middle half between 20.4 years and 20.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

11 wells

42-311352491710,450 ftApr 2013——
42-311348481610,500 ftJun 2012——
42-311348361510,500 ftJun 2012——
42-311340411410,265 ftJun 2008——
42-311340391210,320 ftMay 2008——
42-31132897610,350 ftOct 1991——
42-31132888510,300 ftAug 1991——
42-31132871410,400 ftFeb 1991Jul 2011Yes
42-31132833310,500 ftFeb 1991——
42-31132694210,250 ftApr 1989——
42-31132655110,250 ftJun 1988——

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 202610757398.932.87$12,230
Mar 202650547589.753.15$46,820
Feb 2026056963.503.75$2,134
Jan 2026131459.138.00$2,570
Dec 202517872356.664.41$13,276
Nov 2025042158.593.93$1,653
Oct 202501,08659.383.30$3,589
Sep 20251771,07862.743.08$14,422
Aug 20251631,03263.933.01$13,532
Jul 2025090866.743.32$3,010
Jun 202518290866.483.13$14,940
May 20251491,06660.553.23$12,468
Apr 202535078662.363.54$24,611
Mar 202531967467.704.27$24,473
Feb 202518628470.884.34$14,416
Jan 202518645174.324.28$15,753
Dec 2024052468.993.12$1,636
Nov 202434436169.052.20$24,547
Oct 20241681,08171.372.28$14,456
Sep 2024081269.612.36$1,920
Aug 20241821,81275.632.06$17,504
Jul 202416467279.932.15$14,551
Jun 202418299078.082.63$16,818
May 20241781,13578.812.20$16,523
Apr 20245241,41584.451.66$46,600
Mar 20243421,20580.301.55$29,324
Feb 20241811,56776.091.78$16,567
Jan 20241641,15373.023.30$15,777
Dec 20233391,17671.262.61$27,227
Nov 202317494377.892.81$16,200
Oct 20236981,24385.443.09$63,475
Sep 202301,64389.042.74$4,494
Aug 20237011,17380.522.67$59,580
Jul 20233431,17374.852.64$28,772
Jun 20233521,17368.962.26$26,923
May 20231741,07370.622.23$14,678
Apr 20235211,81078.122.24$44,751
Mar 20239032,38472.852.39$71,489
Feb 20235541,75675.112.47$45,941
Jan 20233631,23876.533.39$31,974
Dec 202273432576.415.73$57,947
Nov 20221802,21585.005.65$27,806
Oct 20221,0942,46087.185.86$109,800
Sep 20225471,68384.888.16$60,169
Aug 20221762,68394.529.13$41,124
Jul 20223642,039101.587.54$52,353
Jun 20229011,678115.097.98$117,082
May 20225292,085109.378.43$75,440
Apr 20225462,085104.226.84$71,161
Mar 20229013,025108.885.08$113,457
Feb 20225552,43391.054.86$62,354
Jan 20225521,96381.844.54$54,083
Dec 20215392,41371.323.90$47,850
Nov 20217232,36877.435.24$68,383
Oct 20211781,74079.795.71$24,145
Sep 2021095469.865.35$5,105
Aug 2021095466.024.22$4,026
Jul 20211731,78770.783.98$19,361
Jun 20213561,53169.493.38$29,914
May 20211791,64963.483.02$16,339
Apr 20211711,75360.362.76$15,157
Mar 20211791,38961.302.72$14,747
Feb 20213631,68957.805.55$30,352
Jan 20213601,89850.412.81$23,481
Dec 20203531,98644.642.68$21,071
Nov 20203541,68638.772.71$18,288
Oct 20203591,95236.972.48$18,110
Sep 20201811,78037.091.99$10,257
Aug 20201781,97439.982.39$11,825
Jul 20207162,36838.371.83$31,795
Jun 20201811,56434.901.69$8,961
May 2020014516.921.81$263
Apr 20205442,67914.751.80$12,858
Mar 20207312,72230.341.86$27,231
Feb 20201792,48649.881.98$13,852
Jan 20208842,24757.252.09$55,316
Dec 20192982,60659.012.30$23,590
Nov 20191821,57055.302.75$14,383
Oct 20194931,77453.472.42$30,651
Sep 20195362,21955.052.66$35,403
Aug 20193602,13253.112.30$24,033
Jul 20195551,97356.272.46$36,084
Jun 20195571,86452.782.49$34,042
May 20193442,13158.482.74$25,957
Apr 20193822,47562.632.75$30,733
Mar 20195492,39956.803.06$38,529
Feb 20191801,05650.852.79$12,102
Jan 20191811,14946.033.23$12,041
Dec 20181801,16946.594.19$13,279
Nov 20181811,24552.934.24$14,856
Oct 20181781,63761.443.40$16,499
Sep 20183571,71559.543.11$26,586
Aug 20181761,73259.403.07$15,766
Jul 20183801,33665.142.93$28,670
Jun 20181891,90860.183.08$17,245
May 20189203,15865.382.90$69,310
Apr 20187271,99863.842.90$52,207
Mar 20185732,66761.222.79$42,512
Feb 20187552,34861.782.77$53,139
Jan 20187503,41262.874.01$60,832
Dec 20171,1243,49157.272.92$74,571
Nov 20175562,54255.423.12$38,740
Oct 20173561,87249.292.98$23,133
Sep 20179432,30247.523.09$51,918
Aug 20173533,48945.373.00$26,498
Jul 20173663,39343.873.09$26,532
Jun 20175603,25242.493.09$33,834
May 20179223,53045.373.26$53,351
Apr 20175613,37547.933.21$37,728
Mar 20175482,05346.772.98$31,755
Feb 201701,41050.452.95$4,163
Jan 20177581,24249.413.42$41,699
Dec 20161822,54448.763.72$18,345
Nov 20163881,47442.492.64$20,384
Oct 20165782,28946.193.09$33,771
Sep 20163742,51541.553.10$23,338
Aug 201602,22141.442.92$6,495
Jul 20165542,11141.622.92$29,231
Jun 20161882,06345.352.69$14,067
May 20165452,12842.521.99$27,410
Apr 20161892,22636.561.99$11,342
Mar 20165402,61133.011.79$22,510
Feb 20163752,45526.472.06$14,992
Jan 20167704,77627.352.36$32,352
Dec 20153784,78232.362.00$21,803
Nov 20159115,51838.792.17$47,297
Oct 20153626,28743.552.43$31,021
Sep 20159137,13742.992.76$58,937
Aug 20155415,84540.162.87$38,516
Jul 20155454,97548.152.95$40,894
Jun 20153636,07356.152.88$37,890
May 20159118,79855.212.96$76,298
Apr 20159316,71949.822.71$64,568
Mar 20159306,47342.892.93$58,884
Feb 20155574,93944.662.98$39,575
Jan 20155595,66743.433.10$41,849
Dec 20141,2839,87854.693.59$105,643
Nov 20147082,75670.464.25$61,604
Oct 20148958,35178.303.90$102,655
Sep 20141,3049,91786.164.05$152,471
Aug 20141,2789,72889.394.04$153,494
Jul 20141,2745,60396.564.18$146,436
Jun 20141,2165,70698.164.74$146,391
May 20141,28910,27194.734.73$170,653
Apr 20141,7118,12495.944.81$203,223
Mar 20141,51711,46595.895.06$203,441
Feb 20148195,29597.406.19$112,557
Jan 20141,1827,05690.404.86$141,150
Dec 20131,7107,82391.824.35$191,077
Nov 20131,7785,91388.853.74$180,080
Oct 20131,8426,07797.423.78$202,415
Sep 20131,5145,841104.113.72$179,338
Aug 20131,5106,866104.253.52$181,604
Jul 20132,0688,671102.523.72$244,248
Jun 20132,0578,14194.403.93$226,203
May 20132,63513,86894.834.15$307,416
Apr 20133,40511,46893.964.28$369,047
Mar 20134,82514,23593.623.91$507,416
Feb 20132,7839,01291.233.42$284,713
Jan 20131,1485,56491.603.42$124,185
Dec 20121,1325,30286.773.42$116,357
Nov 20121,1435,81386.953.62$120,456
Oct 20121,8725,76689.383.40$186,922
Sep 20121,3088,42594.672.92$148,416
Aug 20122,2497,43292.662.91$230,006
Jul 20122,0038,97185.133.02$197,615
Jun 20122,0096,69279.822.52$177,216
May 20125455,64991.612.49$63,984
Apr 20127385,399101.652.00$85,798
Mar 20125435,038105.052.22$68,237
Feb 20129325,697101.102.57$108,868
Jan 20129875,63998.092.73$112,232
Dec 20117356,05696.873.24$90,819
Nov 20119046,22395.723.31$107,137
Oct 20116636,57184.983.65$80,316
Sep 20119247,11983.623.99$105,640
Aug 20117365,63883.404.15$84,776
Jul 20111,2828,48794.144.52$159,025
Jun 20119287,28292.904.64$119,999
May 20117067,17998.134.40$100,902
Apr 20111,3497,389105.964.33$174,959
Mar 20111,3168,31196.364.06$160,530
Feb 20119215,96285.644.18$103,795
Jan 20111,4595,81286.504.59$152,873
Dec 20109575,92985.734.35$107,821
Nov 20105925,79180.843.80$69,836
Oct 20109425,31178.103.51$92,206
Sep 20101,1277,08472.633.98$110,045
Aug 20101,6667,61173.684.42$156,387
Jul 20108996,57972.554.74$96,384
Jun 20101,4826,59970.364.91$136,677
May 20101,1377,35371.124.24$112,005
Apr 20101,1026,07881.694.12$115,080
Mar 20102,0016,20678.394.39$184,094
Feb 20101,5054,73973.585.44$136,529
Jan 20101,3575,08374.365.96$131,222
Dec 20096833,95571.445.48$70,482
Nov 20091,0584,91974.593.75$97,370
Oct 20091,9705,88572.544.11$167,093
Sep 20098716,43265.543.06$76,798
Aug 20091,5518,23167.423.22$131,060
Jul 20092,2818,67861.133.46$169,502
Jun 20092,49511,04466.163.90$208,086
May 20093,16310,36254.743.93$213,821
Apr 20092,1037,05846.773.59$123,678
Mar 20091,9386,28242.144.06$107,166
Feb 20092,0006,32932.814.63$94,942
Jan 20091,2766,03735.865.37$78,182
Dec 20081,5715,61937.105.98$91,870
Nov 20081,7766,53755.496.86$143,396
Oct 20081,9996,86475.246.92$197,917
Sep 20082,6546,911101.767.88$324,510
Aug 20083,3679,122114.228.48$461,961
Jul 20082,4747,491131.0811.39$409,610
Jun 20081,7745,708131.3313.03$307,370
May 20081,5795,072123.1711.57$253,190
Apr 20086944,454110.3110.45$123,121
Mar 20081,2685,328101.909.66$180,699
Feb 20081,4345,64992.538.77$182,233
Jan 20081,4375,06790.388.21$171,454
Dec 20072,2567,62588.337.30$254,950
Nov 20071,4296,16291.677.29$175,928
Oct 20071,1456,74582.856.92$141,552
Sep 20076894,81575.846.24$82,319
Aug 20075221,66669.066.39$46,692
Jul 20071852,61470.906.39$29,815
Jun 20077023,38862.007.55$69,098
May 20077183,62058.747.85$70,579
Apr 20076983,47259.617.81$68,707
Mar 20073603,84656.927.30$48,575
Feb 20075272,79355.108.22$51,985
Jan 20071732,93050.306.73$28,412
Dec 20066463,45356.656.92$60,485
Nov 20065244,19154.207.62$60,326
Oct 20065104,53854.906.01$55,290
Sep 20066984,31060.085.04$63,646
Aug 20068494,87468.717.34$94,110
Jul 20061,0334,99969.376.34$103,367
Jun 20061674,67066.286.38$40,881
May 20068654,42466.016.42$85,523
Apr 20068725,93364.397.36$99,818
Mar 20067064,67856.707.08$73,164
Feb 20066774,86157.597.75$76,667
Jan 20061,1736,49860.598.93$129,121
Dec 20051,5356,45954.9413.42$170,983
Nov 20057143,40854.6910.59$75,134
Oct 20058532,67058.3413.80$86,599
Sep 20051,2254,20261.4512.08$126,032
Aug 20051,2075,43061.519.80$127,439
Jul 20051,6074,76455.697.84$126,861
Jun 20051,7854,90852.337.38$129,635
May 20051,4893,12045.226.65$88,084
Apr 20057003,17449.207.36$57,802
Mar 20053552,58350.377.15$36,362
Feb 20058683,30545.226.31$60,112
Jan 20059232,86243.166.32$57,931
Dec 20047352,38039.866.75$45,365
Nov 200411,79645.286.33$11,415
Oct 20041,0741,94949.706.52$66,076
Sep 20043543,90643.245.28$35,946
Aug 20048593,36242.375.55$55,057
Jul 20044882,23938.286.08$32,303
Jun 20045322,91336.106.43$37,945
May 20041,3193,41637.486.49$71,622
Apr 20041,0904,89634.475.86$66,255
Mar 20041,4234,92834.365.53$76,147
Feb 20041,0872,67432.455.51$50,006
Jan 20048643,36732.036.30$48,885
Dec 20031,0024,16530.266.30$56,567
Nov 20033363,20828.804.60$24,418
Oct 20031,0753,24228.174.76$45,714
Sep 20039152,58626.314.75$36,355
Aug 20039093,40129.765.13$44,498
Jul 20039046,44729.415.17$59,923
Jun 20031,2277,10528.565.98$77,552
May 20031,2677,75426.595.97$80,002
Apr 20038268,30626.675.41$66,942
Mar 20031,3397,88431.146.10$89,758
Feb 20031,3426,30833.487.93$94,927
Jan 20032,0605,58530.315.58$93,614
Dec 20021,1596,97726.914.85$65,053
Nov 20021,4365,01724.664.14$56,167
Oct 20021,1977,01226.464.23$61,327
Sep 20022,5876,68827.443.64$95,300
Aug 20029204,87025.963.16$39,293
Jul 20021,1843,76824.583.06$40,639
Jun 20026891,97723.733.34$22,950
May 20021,4173,63924.663.58$47,985
Apr 20021,1724,68823.653.51$44,184
Mar 20021,1034,43322.003.10$38,020
Feb 20028993,70718.222.38$25,186
Jan 20021,4284,08117.172.38$34,214
Dec 20011,0733,41516.932.36$26,240
Nov 20011,4544,99318.072.41$38,285
Oct 20011,6473,68619.782.53$41,899
Sep 20011,7634,52824.262.25$52,964
Aug 20011,2546,07924.873.05$49,747
Jul 20011,4105,14823.933.20$50,200
Jun 20011,7704,69924.563.82$61,441
May 20011,9275,14125.524.31$71,321
Apr 20012,3005,24924.685.34$84,769
Mar 20011,7893,53724.545.38$62,919
Feb 20012,0815,12027.755.77$87,275
Jan 20013,08110,87527.478.40$175,972
Dec 20002,9599,01526.889.12$161,777
Nov 20003,5909,04932.215.66$166,833
Oct 20003,7409,56231.235.15$166,001
Sep 20004,2039,08331.875.19$181,059
Aug 20001,8975,54929.644.54$81,424
Jul 20001,5252,61028.534.09$54,183
Jun 20008691,84129.304.40$33,557
May 20007211,99527.263.68$26,996
Apr 20005291,35424.513.12$17,185
Mar 20004611,59128.422.86$17,651
Feb 20005532,44327.622.73$21,935
Jan 20001,3151,66925.272.48$37,370
Dec 1999171,70224.282.42$4,538
Nov 19995332,75023.192.43$19,054
Oct 19996711,44620.982.80$18,132
Sep 19991,3931,66221.752.62$34,650
Aug 1999692919.262.88$2,787
Jul 19991,2411,14917.892.37$24,927
Jun 199901,10515.942.36$2,610
May 199901,09415.792.32$2,539
Apr 19991,2691,30715.102.21$22,048
Mar 1999101,24812.471.84$2,419
Feb 199909229.981.82$1,676
Jan 199973068110.381.90$8,871
Dec 19981,0511,2639.201.77$11,909
Nov 19985401,01010.892.19$8,088
Oct 199801,09612.421.97$2,158
Sep 19981,06851912.592.08$14,527
Aug 199841,44411.301.91$2,799
Jul 199801,72311.742.24$3,855
Jun 19981,7481,81911.242.24$23,717
May 19983631,36312.622.21$7,588
Apr 1998057713.042.51$1,446
Mar 19986991,50212.802.31$12,416
Feb 199853790813.952.30$9,579
Jan 199801,27614.702.15$2,750
Dec 19971,148016.322.41$18,735
Nov 1997097718.193.09$3,017
Oct 19973791,96919.253.15$13,498
Sep 19979011,55617.742.95$20,582
Aug 19973771,36017.862.55$10,208
Jul 199775799717.582.25$15,548
Jun 199701,37117.242.26$3,095
May 19975021,49418.972.31$12,972
Apr 19973901,38317.882.08$9,854
Mar 19975631,91418.951.94$14,380
Feb 19977521,17620.492.21$18,003
Jan 19978951,30523.483.54$25,634
Dec 199658991123.32—$13,735
Nov 19967821,47321.97—$17,181
Oct 19965621,58923.31—$13,100
Sep 19969271,44122.22—$20,598
Aug 19963651,19520.26—$7,395
Jul 19969501,74719.55—$18,573
Jun 19963711,51718.73—$6,949
May 19965651,73919.43—$10,978
Apr 19969671,88721.51—$20,800
Mar 19967911,92319.38—$15,330
Feb 19965661,26816.98—$9,611
Jan 19968992,17317.07—$15,346
Dec 19959622,75717.19—$16,537
Nov 19959642,77616.00—$15,424
Oct 19959402,80215.43—$14,504
Sep 19959663,69316.18—$15,630
Aug 19958993,00515.92—$14,312
Jul 19959762,86415.24—$14,874
Jun 19957953,38816.41—$13,046
May 19955643,81417.56—$9,904
Apr 19959994,43317.73—$17,712
Mar 19951,1903,61416.44—$19,564
Feb 19951,0053,42116.58—$16,663
Jan 19951,4433,68515.92—$22,973
Dec 19941,3503,20515.03—$20,291
Nov 19941,5063,41615.90—$23,945
Oct 19941,1603,09115.58—$18,073
Sep 19941,1132,75415.29—$17,018
Aug 19941,1873,02216.13—$19,146
Jul 19941,1441,80317.56—$20,089
Jun 19943842,09317.09—$6,563
May 19941,1701,52715.88—$18,580
Apr 19941,0211,54114.14—$14,437
Mar 19941,1652,43312.46—$14,516
Feb 19941,0151,65912.50—$12,688
Jan 19941,3172,32312.66—$16,673
Dec 19931,5741,76812.33—$19,407
Nov 199301,31314.49—$0
Oct 19931,2831,83615.85—$20,336
Sep 19939182,27815.03—$13,798
Aug 19931,1742,12115.66—$18,385
Jul 19931,9262,21215.46—$29,776
Jun 199301,20016.79—$0
May 19932,2902,37917.68—$40,487
Apr 19939461,20518.05—$17,075
Mar 19939671,88418.14—$17,541
Feb 19939012,27517.90—$16,128
Jan 19931,2991,92816.93—$21,992

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                  107 bbl  × $ 98.93 =    $10,586
Casinghead gas       573 Mcf  × $  2.87 =     $1,644

────────────────────────────────────────────────────
Month total                                  $12,230

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. 01/O/12066 is the state's own key, not one this site invented.