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FOSTER, F.

Operated by OCCIDENTAL PERMIAN LTD. (P-5 617544) in the FOSTER field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1581District 08Field 32309001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$40.6 M
Jan 1993 – May 2026
Value, last 12 filed months
$625 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

The FOSTER 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 53 leases and 1,622 wells, and the rule below applies to all of them.

Discovered
1935-12-01
as the register files it
Field class
Oil
the register's own label
Between wells
600 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 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: “OPTIONAL 10 ACRE UNITS,1100 DIAG.”

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
OilDisposition611,577 bbl$39,447,573
Casinghead gasProduction264,295 Mcf$1,161,033
Total$40,608,607

14,105 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 (19)

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 31.8585, -102.4387. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

31.85861, -102.43924 · 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
57.9%
11 of 19 wells
With a plug date
52.6%
10 of 19 wells
Median depth
4,187 ft
19 wells filed one
Completion to plug
8.8 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
1157.9%
A plug date is filed
1052.6%
BothOn the schedule and plugged. Neither fact cancels the other.
1052.6%
NeitherNo plug date, and not on the schedule.
842.1%

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, 19 of 19 wells. Median 4,187 ft, with the middle half between 4,180 and 4,298 ft; the shallowest is 4,160 ft and the deepest 4,400 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, 14 of 19 wells, Apr 1972 – Nov 2024. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Apr 1972 – Nov 2024
14 of 19 wells; 5 filed none
Plug dates filed
Jan 1992 – Nov 2024
10 of 19 wells; 9 filed none

Last completion to plug: a median of 8.8 years across the 3 wells that filed both dates, with the middle half between 7.8 years and 8.8 years. A further 2 wells are excluded, because the last completion the Commission holds for them is dated after the plug date. Both dates are the latest of their kind on the wellbore record and they are filed separately, so the two need not run in order. The gap is the distance between two filed dates — it is not a statement of how long the well produced.

19 wells

42-1350477314,310 ft—Aug 2012Yes
42-135047742W4,185 ft—Jul 1995Yes
42-1350477754,179 ft—Jan 1992Yes
42-1350477974,160 ft—Jan 2015Yes
42-1350478194,185 ft—May 1999Yes
42-135047808W4,180 ftNov 2024——
42-13504782114,187 ftMay 2024——
42-13539269164,265 ftJun 2023——
42-135047753W4,202 ftFeb 2023Dec 1992Yes
42-135047786W4,175 ftFeb 2023——
42-13539284144,311 ftMar 2018Nov 2024Yes
42-13541245184,399 ftMay 2012Feb 2021Yes
42-13541246194,400 ftApr 2012Feb 2021Yes
42-13504783104,175 ftApr 2010—Yes
42-1350477644,180 ftJun 2007Jan 2004Yes
42-13539270134,277 ftMar 2007——
42-13539268174,285 ftMar 2007——
42-13539286154,332 ftMar 2007——
42-13530762124,162 ftApr 1972——

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 2026851164106.413.05$91,054
Apr 20267557598.932.87$74,907
Mar 20266639189.753.15$59,791
Feb 202663210563.503.75$40,526
Jan 202650811659.138.00$30,966
Dec 202568120956.664.41$39,508
Nov 202569514758.593.93$41,297
Oct 202567822159.383.30$40,990
Sep 202571424362.743.08$45,544
Aug 202586124963.933.01$55,794
Jul 202587032966.743.32$59,155
Jun 202566623266.483.13$45,002
May 202563727160.553.23$39,446
Apr 202562013862.363.54$39,152
Mar 20256407067.704.27$43,627
Feb 202565370.884.34$4,620
Jan 20251229674.324.28$9,478
Dec 202452219768.993.12$36,628
Nov 202471221969.052.20$49,645
Oct 20241,03632871.372.28$74,688
Sep 20241,25549169.612.36$88,521
Aug 20241,33253275.632.06$101,837
Jul 20241,55250479.932.15$125,133
Jun 20241,46152478.082.63$115,455
May 20241,52040678.812.20$120,684
Apr 20241,25637184.451.66$106,685
Mar 202499227780.301.55$80,086
Feb 20241,29236176.091.78$98,952
Jan 20241,46933673.023.30$108,374
Dec 20231,74740471.262.61$125,546
Nov 20231,87232877.892.81$146,731
Oct 20232,00942785.443.09$172,967
Sep 20231,43327089.042.74$128,333
Aug 20231,36347480.522.67$111,016
Jul 202384445374.852.64$64,370
Jun 202376350668.962.26$53,759
May 202374147070.622.23$53,376
Apr 202364549378.122.24$51,491
Mar 20231449672.852.39$10,720
Feb 202322813175.112.47$17,448
Jan 202371633976.533.39$55,944
Dec 202281327176.415.73$63,674
Nov 202281732585.005.65$71,280
Oct 202257231387.185.86$51,702
Sep 202263933184.888.16$56,941
Aug 202261334594.529.13$61,090
Jul 2022645344101.587.54$68,114
Jun 2022752372115.097.98$89,515
May 20221,015630109.378.43$116,323
Apr 2022786429104.226.84$84,850
Mar 20224490108.885.08$48,887
Feb 202228311691.054.86$26,331
Jan 202250921781.844.54$42,641
Dec 202179737571.323.90$58,304
Nov 202192742077.435.24$73,977
Oct 20211,24960179.795.71$103,092
Sep 202168534469.865.35$49,695
Aug 202195145566.024.22$64,705
Jul 202131515370.783.98$22,905
Jun 202179062669.493.38$57,013
May 202146928363.483.02$30,626
Apr 202167343260.362.76$41,814
Mar 202158330861.302.72$36,575
Feb 202130018357.805.55$18,355
Jan 202158638350.412.81$30,617
Dec 202054831944.642.68$25,316
Nov 202084250738.772.71$34,017
Oct 202093447036.972.48$35,695
Sep 202087046237.091.99$33,188
Aug 202078756439.982.39$32,809
Jul 202084566338.371.83$33,633
Jun 202067448634.901.69$24,344
May 202085645516.921.81$15,309
Apr 202092953414.751.80$14,666
Mar 202094267130.341.86$29,826
Feb 202089358149.881.98$45,694
Jan 20201,09775057.252.09$64,374
Dec 201980245359.012.30$48,370
Nov 20191,13446055.302.75$63,976
Oct 20191,18449553.472.42$64,506
Sep 201997633255.052.66$54,611
Aug 20191,06968853.112.30$58,360
Jul 201987547456.272.46$50,402
Jun 201981044652.782.49$43,863
May 201987429158.482.74$51,909
Apr 201991943362.632.75$58,748
Mar 20191,09759756.803.06$64,138
Feb 201980565750.852.79$42,769
Jan 201988490146.033.23$43,599
Dec 201888933846.594.19$42,833
Nov 201889638052.934.24$49,035
Oct 20181,20841161.443.40$75,616
Sep 201886439459.543.11$52,667
Aug 20181,02846359.403.07$62,483
Jul 201898248265.142.93$65,381
Jun 201891439660.183.08$56,223
May 201888648365.382.90$59,328
Apr 20186601163.842.90$42,166
Mar 201886647561.222.79$54,340
Feb 201881945261.782.77$51,848
Jan 201896446162.874.01$62,455
Dec 201789243957.272.92$52,367
Nov 201785137355.423.12$48,326
Oct 201769129449.292.98$34,937
Sep 201767027347.523.09$32,681
Aug 201771845045.373.00$33,928
Jul 201787760143.873.09$40,329
Jun 201792052042.493.09$40,696
May 20171,27085845.373.26$60,420
Apr 20171,31577547.933.21$65,517
Mar 20171,33685746.772.98$65,042
Feb 20171,18176950.452.95$61,852
Jan 20171,55076749.413.42$79,208
Dec 20161,59685448.763.72$81,000
Nov 20161,28478542.492.64$56,633
Oct 201696669246.193.09$46,758
Sep 201669360141.553.10$30,658
Aug 201675874941.442.92$33,602
Jul 20161,00879541.622.92$44,278
Jun 20161,01580845.352.69$48,200
May 20161,14388742.521.99$50,366
Apr 20161,40193236.561.99$53,076
Mar 20161,37196333.011.79$46,984
Feb 20161,26584326.472.06$35,224
Jan 20161,17781327.352.36$34,113
Dec 201598171932.362.00$33,184
Nov 201595376038.792.17$38,614
Oct 20151,11964643.552.43$50,300
Sep 20151,00179942.992.76$45,237
Aug 201590084440.162.87$38,568
Jul 20151,2881,02648.152.95$65,039
Jun 20151,27092156.152.88$73,966
May 20151,3821,03255.212.96$79,350
Apr 20151,81598549.822.71$93,089
Mar 20152,0871,04242.892.93$92,569
Feb 20151,92598044.662.98$88,887
Jan 20151,40280343.433.10$63,379
Dec 20141,60494054.693.59$91,099
Nov 20141,11993770.464.25$82,829
Oct 20141,4121,02478.303.90$114,554
Sep 20141,7941,20786.164.05$159,454
Aug 20141,8501,20789.394.04$170,242
Jul 20141,6521,33196.564.18$165,080
Jun 20141,7081,34198.164.74$174,009
May 20141,5041,08394.734.73$147,593
Apr 20141,48274395.944.81$145,756
Mar 20141,6081,14495.895.06$159,976
Feb 20141,6831,06197.406.19$170,494
Jan 20142,4651,21490.404.86$228,737
Dec 20131,7251,06591.824.35$163,027
Nov 20131,7491,17688.853.74$159,795
Oct 20132,2911,61897.423.78$229,304
Sep 20132,4991,227104.113.72$264,733
Aug 20132,4641,657104.253.52$262,709
Jul 20132,2631,601102.523.72$237,955
Jun 20131,6801,51294.403.93$164,539
May 20132,2181,52794.834.15$216,669
Apr 20132,4571,27793.964.28$236,329
Mar 20132,5761,39093.623.91$246,604
Feb 20132,1921,28891.233.42$204,381
Jan 20132,1991,04791.603.42$205,009
Dec 20123,0581,28886.773.42$269,748
Nov 20122,9061,45086.953.62$257,933
Oct 20122,9791,46089.383.40$271,227
Sep 20123,2631,48694.672.92$313,245
Aug 20123,6751,70992.662.91$345,496
Jul 20123,9691,53385.133.02$342,512
Jun 20124,2921,75779.822.52$347,013
May 20124,1401,72491.612.49$383,555
Apr 20122,037883101.652.00$208,824
Mar 20122,482909105.052.22$262,754
Feb 20122,397848101.102.57$244,516
Jan 20122,5991,04398.092.73$257,788
Dec 20112,75598496.873.24$270,065
Nov 20112,64887495.723.31$256,361
Oct 20112,8531,06284.983.65$246,323
Sep 20112,90498683.623.99$246,762
Aug 20112,54789083.404.15$216,113
Jul 20112,8541,05494.144.52$273,437
Jun 20112,68395192.904.64$253,663
May 20112,77689398.134.40$276,342
Apr 20112,876399105.964.33$306,470
Mar 20112,69291696.364.06$263,118
Feb 20112,46566685.644.18$213,886
Jan 20113,1271,03486.504.59$275,230
Dec 20103,6391,14785.734.35$316,958
Nov 20104,5311,21780.843.80$370,905
Oct 20104,4531,39878.103.51$352,685
Sep 20103,7491,35172.633.98$277,666
Aug 20103,7381,41273.684.42$281,656
Jul 20103,6841,42272.554.74$274,009
Jun 20103,5641,32170.364.91$257,250
May 20103,9451,29571.124.24$286,053
Apr 20103,6391,28881.694.12$302,580
Mar 20104,1541,31078.394.39$331,381
Feb 20103,8911,20373.585.44$292,847
Jan 20104,2441,35174.365.96$323,641
Dec 20094,4361,38871.445.48$324,519
Nov 20094,4111,43374.593.75$334,392
Oct 20094,1631,47072.544.11$308,026
Sep 20094,3411,46765.543.06$289,005
Aug 20094,8381,52467.423.22$331,083
Jul 20093,9551,50261.133.46$246,973
Jun 20093,5141,45566.163.90$238,153
May 20093,7171,41154.743.93$209,008
Apr 20094,4091,69146.773.59$212,275
Mar 20094,4961,21242.144.06$194,381
Feb 20094,2001,46032.814.63$144,566
Jan 20094,32080635.865.37$159,244
Dec 20084,6331,92037.105.98$183,360
Nov 20084,7201,87055.496.86$274,742
Oct 20085,0422,07775.246.92$393,737
Sep 20084,7241,682101.767.88$493,964
Aug 20084,9462,172114.228.48$583,357
Jul 20085,2432,308131.0811.39$713,539
Jun 20085,0052,140131.3313.03$685,196
May 20085,1332,391123.1711.57$659,906
Apr 20084,9642,464110.3110.45$573,340
Mar 20085,3652,582101.909.66$571,646
Feb 20085,1812,46292.538.77$500,991
Jan 20086,1872,52190.388.21$579,868
Dec 20075,5302,15188.337.30$504,171
Nov 20076,0652,51891.677.29$574,339
Oct 20076,5412,58882.856.92$559,836
Sep 20076,9122,43975.846.24$539,436
Aug 20077,7643,25169.066.39$556,949
Jul 20077,1953,46070.906.39$532,228
Jun 20077,16733162.007.55$446,853
May 20079,9713,80558.747.85$615,552
Apr 200714,6464,48759.617.81$908,070
Mar 20074,6541,63556.927.30$276,844
Feb 200745014255.108.22$25,962
Jan 200757420150.306.73$30,224
Dec 200644220756.656.92$26,471
Nov 20064089754.207.62$22,853
Oct 200644922054.906.01$25,973
Sep 200644723660.085.04$28,045
Aug 200645019568.717.34$32,351
Jul 200651525669.376.34$37,349
Jun 200652651866.286.38$38,170
May 200651130266.016.42$35,671
Apr 200647830864.397.36$33,045
Mar 200651437556.707.08$31,800
Feb 200647819957.597.75$29,070
Jan 200658123360.598.93$37,284
Dec 200553122154.9413.42$32,138
Nov 200556523854.6910.59$33,420
Oct 200558827658.3413.80$38,112
Sep 200556830061.4512.08$38,527
Aug 200556429161.519.80$37,543
Jul 200554028355.697.84$32,292
Jun 200556628952.337.38$31,752
May 200555728245.226.65$27,063
Apr 200569131249.207.36$36,294
Mar 200579934550.377.15$42,714
Feb 200574030145.226.31$35,363
Jan 200551026043.166.32$23,655
Dec 200446525539.866.75$20,256
Nov 200449923945.286.33$24,108
Oct 200446722549.706.52$24,676
Sep 200456725843.245.28$25,880
Aug 200470632442.375.55$31,712
Jul 200464330638.286.08$26,476
Jun 200472338936.106.43$28,603
May 200464436337.486.49$26,495
Apr 200456631134.475.86$21,332
Mar 200458029134.365.53$21,538
Feb 200442220732.455.51$14,834
Jan 200453522932.036.30$18,579
Dec 200355628230.266.30$18,602
Nov 200373632028.804.60$22,667
Oct 200375134728.174.76$22,807
Sep 200375231726.314.75$21,291
Aug 200384233929.765.13$26,797
Jul 200371834429.415.17$22,895
Jun 200378137428.565.98$24,543
May 200361327226.595.97$17,924
Apr 200357128026.675.41$16,743
Mar 200365433731.146.10$22,420
Feb 200348623933.487.93$18,166
Jan 200326114230.315.58$8,704
Dec 200225714426.914.85$7,615
Nov 200256619624.664.14$14,768
Oct 200256622826.464.23$15,941
Sep 200249927027.443.64$14,674
Aug 200248628125.963.16$13,506
Jul 200257640724.583.06$15,404
Jun 200258938023.733.34$15,246
May 200264243224.663.58$17,380
Apr 200253433123.653.51$13,792
Mar 200260434622.003.10$14,362
Feb 200249217218.222.38$9,373
Jan 200248314717.172.38$8,642
Dec 200148013216.932.36$8,439
Nov 200160712218.072.41$11,262
Oct 200170523319.782.53$14,534
Sep 200162122524.262.25$15,572
Aug 200160720124.873.05$15,710
Jul 200155924123.933.20$14,147
Jun 200159818024.563.82$15,375
May 200171418125.524.31$19,001
Apr 200156615524.685.34$14,796
Mar 200167418824.545.38$17,551
Feb 200155423727.755.77$16,740
Jan 200157023027.478.40$17,590
Dec 200053717026.889.12$15,985
Nov 200050324332.215.66$17,577
Oct 200061325631.235.15$20,461
Sep 200064627731.875.19$22,025
Aug 200065029229.644.54$20,592
Jul 200067228428.534.09$20,334
Jun 200067925929.304.40$21,034
May 200074328227.263.68$21,292
Apr 200070430824.513.12$18,215
Mar 200076127128.422.86$22,403
Feb 200067726127.622.73$19,410
Jan 200073126025.272.48$19,117
Dec 199972525724.282.42$18,226
Nov 199956424923.192.43$13,685
Oct 199973227320.982.80$16,123
Sep 199968429021.752.62$15,636
Aug 199968831519.262.88$14,157
Jul 199971230317.892.37$13,457
Jun 199966730615.942.36$11,355
May 199978831015.792.32$13,162
Apr 199969429115.102.21$11,122
Mar 199965127012.471.84$8,614
Feb 19996712599.981.82$7,167
Jan 199974330310.381.90$8,288
Dec 19987313919.201.77$7,419
Nov 199870968510.892.19$9,218
Oct 199879372812.421.97$11,283
Sep 199875059712.592.08$10,686
Aug 199878750911.301.91$9,864
Jul 199875966211.742.24$10,392
Jun 199871685611.242.24$9,963
May 199882281612.622.21$12,174
Apr 199878388313.042.51$12,423
Mar 199883293512.802.31$12,809
Feb 199868376213.952.30$11,280
Jan 199880689414.702.15$13,775
Dec 199783184116.322.41$15,590
Nov 199773480418.193.09$15,834
Oct 199788365719.253.15$19,067
Sep 199784392417.742.95$17,685
Aug 19971,03088317.862.55$20,652
Jul 19971,11396117.582.25$21,726
Jun 19971,05976617.242.26$19,986
May 19971,09775518.972.31$22,553
Apr 199786656517.882.08$16,661
Mar 199792954118.951.94$18,654
Feb 199787942120.492.21$18,939
Jan 199788738323.483.54$22,182
Dec 19961,01537823.32—$23,670
Nov 19961,02130521.97—$22,431
Oct 19961,07635723.31—$25,082
Sep 19961,08434422.22—$24,086
Aug 199686833320.26—$17,586
Jul 19961,00036719.55—$19,550
Jun 199694135718.73—$17,625
May 199696241519.43—$18,692
Apr 199697429221.51—$20,951
Mar 19961,27630519.38—$24,729
Feb 199687824816.98—$14,908
Jan 199694125517.07—$16,063
Dec 19951,05225117.19—$18,084
Nov 19951,02127116.00—$16,336
Oct 19951,08233115.43—$16,695
Sep 199590338816.18—$14,611
Aug 19951,180115.92—$18,786
Jul 19951,206115.24—$18,379
Jun 19951,205116.41—$19,774
May 19951,25131817.56—$21,968
Apr 19951,34636017.73—$23,865
Mar 19951,376116.44—$22,621
Feb 19951,19332016.58—$19,780
Jan 19951,17229515.92—$18,658
Dec 19941,15029515.03—$17,285
Nov 19941,15323215.90—$18,333
Oct 199495026215.58—$14,801
Sep 19941,02731415.29—$15,703
Aug 19941,00926916.13—$16,275
Jul 199495528817.56—$16,770
Jun 19941,04041017.09—$17,774
May 19941,16241515.88—$18,453
Apr 199495635214.14—$13,518
Mar 199483436412.46—$10,392
Feb 199480822312.50—$10,100
Jan 19941,06230312.66—$13,445
Dec 199382330112.33—$10,148
Nov 199380330314.49—$11,635
Oct 19931,13439315.85—$17,974
Sep 199395637615.03—$14,369
Aug 199380630515.66—$12,622
Jul 199388130515.46—$13,620
Jun 19931,67128616.79—$28,056
May 19931,72439917.68—$30,480
Apr 19931,14531218.05—$20,667
Mar 19931,30233518.14—$23,618
Feb 19931,07328317.90—$19,207
Jan 19931,18128616.93—$19,994

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                  851 bbl  × $106.41 =    $90,555
Casinghead gas       164 Mcf  × $  3.05 =       $500

────────────────────────────────────────────────────
Month total                                  $91,054

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. 08/O/1581 is the state's own key, not one this site invented.