SEALY & SMITH UNIT

Operated by BASIN OIL & GAS OPERATING, LLC (P-5 54430) in the HALLEY, SOUTH (QUEEN SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15504District 08Field 38260664OilCasinghead gasSave
Value, all time
$12.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$402 k
at the published price for each month
Months reported
401
no gaps in the span
Streams
2
oil, casinghead gas

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
OilDisposition261,828 bbl$10,471,414
Casinghead gasProduction648,631 Mcf$1,967,990
Total$12,439,404

184,710 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 (17)

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 31.7167, -102.9930. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.1 miles.

31.71767, -102.99246 · centre of 15 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
88.2%
15 of 17 wells
With a plug date
64.7%
11 of 17 wells
Median depth
3,413 ft
14 wells filed one
Completion to plug
28.5 years
median over 8 wells

What the state filed about each well

On the RRC proration schedule
1588.2%
A plug date is filed
1164.7%
BothOn the schedule and plugged. Neither fact cancels the other.
1164.7%
NeitherNo plug date, and not on the schedule.
211.8%

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

0k
2k
4k
6k
8k
10k
12k
15k
20k+

Total depth in feet, 14 of 17 wells. Median 3,413 ft, with the middle half between 3,400 and 5,066 ft; the shallowest is 1,200 ft and the deepest 5,500 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

70s
80s
90s

Last completion by decade, 12 of 17 wells, Jan 1976 – Mar 1990. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 1976 – Mar 1990
12 of 17 wells; 5 filed none
Plug dates filed
Feb 1983 – Jul 2019
11 of 17 wells; 6 filed none

Last completion to plug: a median of 28.5 years across the 8 wells that filed both dates, with the middle half between 16.5 years and 31.2 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

17 wells

42-49504471103,300 ftFeb 1983Yes
42-49504478163,300 ftSep 2006Yes
42-4951029518Yes
42-4951029619Yes
42-4953199824W3,400 ftMar 2015Yes
42-4950447413 U5,500 ftMar 1990Jul 2019Yes
42-4950446845,500 ftNov 1986Sep 1995Yes
42-4950447084,963 ftFeb 1986Sep 1995Yes
42-4953199625W3,436 ftFeb 1986Oct 2013Yes
42-4953199723W3,400 ftFeb 1986Mar 2017Yes
42-4953200121W3,400 ftFeb 1986Dec 2004Yes
42-4953201327W1,200 ftFeb 1986Sep 2018Yes
42-4953199926W3,400 ftFeb 1986
42-4953200022W3,425 ftFeb 1986
42-49504477155,500 ftJan 1986Yes
42-49505188175,100 ftDec 1985Apr 2017Yes
42-495044663Jan 1976Yes

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 2026396768106.413.05$44,478
Apr 202623462598.932.87$24,943
Mar 202626119589.753.15$24,039
Feb 20263063.503.75$191
Jan 202637444859.138.00$25,698
Dec 202559886956.664.41$37,718
Nov 202563263158.593.93$39,506
Oct 20257011,24959.383.30$45,753
Sep 20256361162.743.08$39,936
Aug 202553380663.933.01$36,505
Jul 20255591,46366.743.32$42,158
Jun 20255511,38266.483.13$40,954
May 20255781,55760.553.23$40,031
Apr 20254701,49762.363.54$34,613
Mar 20254601,21467.704.27$36,324
Feb 202542137970.884.34$31,486
Jan 202552261074.324.28$41,405
Dec 202455774568.993.12$40,753
Nov 20245821,20069.052.20$42,825
Oct 20246311,16871.372.28$47,699
Sep 20244961,35069.612.36$37,718
Aug 202459125875.632.06$45,230
Jul 20245371,14679.932.15$45,382
Jun 202456288178.082.63$46,202
May 20246041,03878.812.20$49,883
Apr 20245551,10184.451.66$48,697
Mar 202457093580.301.55$47,216
Feb 202462492176.091.78$49,123
Jan 20244171,04073.023.30$33,879
Dec 202345467971.262.61$34,125
Nov 202340225777.892.81$32,033
Oct 202350458385.443.09$44,862
Sep 202357051489.042.74$52,159
Aug 20234251,22880.522.67$37,503
Jul 20234811,25974.852.64$39,329
Jun 20234831,16668.962.26$35,941
May 20235711,11870.622.23$42,814
Apr 202363562978.122.24$51,014
Mar 202358095772.852.39$44,543
Feb 20234501,12175.112.47$36,564
Jan 20236411,18576.533.39$53,070
Dec 202265484476.415.73$54,807
Nov 202249690885.005.65$47,287
Oct 20224801,24687.185.86$49,153
Sep 20224131,22684.888.16$45,064
Aug 20225631,19194.529.13$64,085
Jul 2022518824101.587.54$58,833
Jun 2022448543115.097.98$55,892
May 2022428559109.378.43$51,524
Apr 2022401839104.226.84$47,529
Mar 2022563948108.885.08$66,112
Feb 202256176391.054.86$54,786
Jan 202244370381.844.54$39,445
Dec 202156458571.323.90$42,505
Nov 202174675377.435.24$61,706
Oct 202170275879.795.71$60,344
Sep 202172557469.865.35$53,720
Aug 202177076066.024.22$54,043
Jul 202123537970.783.98$18,143
Jun 202152750569.493.38$38,328
May 20215061,88263.483.02$37,800
Apr 20214641,10660.362.76$31,058
Mar 20210061.302.72$0
Feb 2021222057.805.55$12,832
Jan 202128775950.412.81$16,601
Dec 202021668644.642.68$11,478
Nov 202027682938.772.71$12,944
Oct 202022260036.972.48$9,694
Sep 20207243437.091.99$3,535
Aug 202015653839.982.39$7,520
Jul 202017142238.371.83$7,331
Jun 202017976134.901.69$7,533
May 202039372916.921.81$7,973
Apr 202017450714.751.80$3,481
Mar 20209431,06730.341.86$30,591
Feb 20208871,95649.881.98$48,118
Jan 20201,3752,61857.252.09$84,203
Dec 20191,1621,53759.012.30$72,111
Nov 20191,12319555.302.75$62,638
Oct 20191,1842,32153.472.42$68,922
Sep 20191,1332,40555.052.66$68,762
Aug 201997780253.112.30$53,737
Jul 20191,013056.272.46$57,002
Jun 20198781,10652.782.49$49,096
May 20198392,20958.482.74$55,118
Apr 20191,3742,91562.632.75$94,072
Mar 20191,1922,83656.803.06$76,390
Feb 20198792,44850.852.79$51,533
Jan 20191,0412,00146.033.23$54,377
Dec 20181,3412,18746.594.19$71,631
Nov 20181,0452,53152.934.24$66,036
Oct 20181,1882,64961.443.40$81,992
Sep 20188861,79759.543.11$58,338
Aug 20181,1922,21159.403.07$77,585
Jul 20181,1772,01665.142.93$82,580
Jun 20189922,03260.183.08$65,951
May 20181,0912,28165.382.90$77,946
Apr 20181,1002,43663.842.90$77,290
Mar 20181,1132,66261.222.79$75,556
Feb 20181,1221,28861.782.77$72,880
Jan 20189671,30762.874.01$66,035
Dec 20179661,38157.272.92$59,357
Nov 20179081,25855.423.12$54,244
Oct 20171,1151,53249.292.98$59,529
Sep 20178641,23547.523.09$44,870
Aug 20179511,25545.373.00$46,917
Jul 20178401,11543.873.09$40,293
Jun 201780096342.493.09$36,965
May 20171,0221,36045.373.26$50,806
Apr 20179521,33647.933.21$49,920
Mar 20177681,35246.772.98$39,953
Feb 20179271,30350.452.95$50,614
Jan 201777883649.413.42$41,299
Dec 20161,047048.763.72$51,052
Nov 2016746042.492.64$31,698
Oct 2016867046.193.09$40,047
Sep 2016604041.553.10$25,096
Aug 2016651041.442.92$26,977
Jul 2016466041.622.92$19,395
Jun 20166511,08145.352.69$32,426
May 20165231,40742.521.99$25,039
Apr 20164341,40236.561.99$18,658
Mar 20165151,36733.011.79$19,453
Feb 20165181,22326.472.06$16,235
Jan 20165421,26927.352.36$17,824
Dec 20154311,27832.362.00$16,505
Nov 20154051,32738.792.17$18,586
Oct 20155051,23143.552.43$24,980
Sep 20154771,43442.992.76$24,462
Aug 20153071,66040.162.87$17,097
Jul 20154721,93548.152.95$28,426
Jun 20154721,32656.152.88$30,325
May 20154701,16155.212.96$29,380
Apr 201532672849.822.71$18,212
Mar 201540550842.892.93$18,861
Feb 20152541,15044.662.98$14,766
Jan 20153641,99043.433.10$21,979
Dec 20144031,97954.693.59$29,147
Nov 20143361,85270.464.25$31,549
Oct 20144451,82578.303.90$41,963
Sep 201423999486.164.05$24,613
Aug 20141521,13789.394.04$18,175
Jul 201416180196.564.18$18,894
Jun 201417659298.164.74$20,080
May 201419056894.734.73$20,683
Apr 201416352395.944.81$18,153
Mar 20146038095.895.06$7,675
Feb 20144528897.406.19$6,166
Jan 201452090.404.86$4,701
Dec 20133024491.824.35$3,817
Nov 20134929888.853.74$5,468
Oct 201314429497.423.78$15,140
Sep 20130290104.113.72$1,078
Aug 20134722104.253.52$4,977
Jul 2013082102.523.72$305
Jun 20137354494.403.93$9,031
May 20132911,14294.834.15$32,334
Apr 20132571,34593.964.28$29,908
Mar 20133111,37093.623.91$34,476
Feb 20133071,38891.233.42$32,754
Jan 20133861,50391.603.42$40,498
Dec 20122701,56086.773.42$28,763
Nov 20125181,28286.953.62$49,687
Oct 20122371,20889.383.40$25,290
Sep 20122861,33794.672.92$30,978
Aug 20124751,18392.662.91$47,454
Jul 20122291,23585.133.02$23,225
Jun 20123991,06179.822.52$34,521
May 20124811,19691.612.49$47,040
Apr 2012434447101.652.00$45,009
Mar 2012994518105.052.22$105,571
Feb 2012287981101.102.57$31,537
Jan 2012354098.092.73$34,724
Dec 20114741,47596.873.24$50,695
Nov 201142160095.723.31$42,285
Oct 201123362484.983.65$22,077
Sep 201140119083.623.99$34,289
Aug 201118657183.404.15$17,882
Jul 201133470594.144.52$34,627
Jun 201112753792.904.64$14,290
May 20119148298.134.40$11,053
Apr 201184250105.964.33$9,984
Mar 20117121996.364.06$7,730
Feb 20117819285.644.18$7,482
Jan 20112261,44686.504.59$26,184
Dec 20102441,54585.734.35$27,635
Nov 201029452580.843.80$25,760
Oct 20102151,17178.103.51$20,900
Sep 20102251,03972.633.98$20,476
Aug 20101381,08273.684.42$14,950
Jul 20102151,01072.554.74$20,382
Jun 20101631,24170.364.91$17,562
May 20102131,34671.124.24$20,849
Apr 20102431,34281.694.12$25,383
Mar 20102181,37678.394.39$23,128
Feb 20101581,35273.585.44$18,984
Jan 20102061,32574.365.96$23,221
Dec 20091951,47971.445.48$22,041
Nov 20091591,46874.593.75$17,367
Oct 20092051,58472.544.11$21,381
Sep 20091331,42465.543.06$13,081
Aug 20091501,47767.423.22$14,867
Jul 200914694961.133.46$12,213
Jun 20091631,66066.163.90$17,250
May 20091061,57354.743.93$11,978
Apr 20091141,47946.773.59$10,638
Mar 20091431,45742.144.06$11,940
Feb 20091051,31132.814.63$9,519
Jan 20091381,46135.865.37$12,796
Dec 2008591,33637.105.98$10,174
Nov 2008641,43155.496.86$13,369
Oct 20085672275.246.92$9,211
Sep 200832722101.767.88$8,944
Aug 20081151,549114.228.48$26,276
Jul 20081201,223131.0811.39$29,659
Jun 20081401,635131.3313.03$39,695
May 20081341,480123.1711.57$33,635
Apr 20081361,415110.3110.45$29,796
Mar 20081221,655101.909.66$28,426
Feb 20081401,51192.538.77$26,207
Jan 20081391,32090.388.21$23,394
Dec 20071121,25688.337.30$19,064
Nov 20071761,65691.677.29$28,209
Oct 20071461,75582.856.92$24,244
Sep 20071651,75175.846.24$23,447
Aug 20071551,27869.066.39$18,868
Jul 20071941,45270.906.39$23,030
Jun 200713267362.007.55$13,264
May 200716971158.747.85$15,506
Apr 200776059.617.81$4,530
Mar 200715198956.927.30$15,817
Feb 200721188655.108.22$18,905
Jan 200719848850.306.73$13,242
Dec 200616442356.656.92$12,217
Nov 200625746354.207.62$17,456
Oct 200619288254.906.01$15,845
Sep 200615188660.085.04$13,535
Aug 20069326668.717.34$8,342
Jul 200623860769.376.34$20,360
Jun 200619966366.286.38$17,422
May 200624567966.016.42$20,535
Apr 200624963264.397.36$20,685
Mar 200622489956.707.08$19,068
Feb 200622874957.597.75$18,936
Jan 20063622,38460.598.93$43,231
Dec 20052651,33854.9413.42$32,509
Nov 20054711,48754.6910.59$41,504
Oct 20054181,59258.3413.80$46,349
Sep 20055401,85161.4512.08$55,541
Aug 20053681,61861.519.80$38,487
Jul 20055611,99155.697.84$46,859
Jun 20055581,91952.337.38$43,364
May 20055992,68045.226.65$44,912
Apr 20057241,46749.207.36$46,419
Mar 20055051,31250.377.15$34,824
Feb 20055832,52145.226.31$42,276
Jan 20057982,92843.166.32$52,953
Dec 20047202,81839.866.75$47,724
Nov 20046872,91245.286.33$49,542
Oct 20046041,43949.706.52$39,394
Sep 20047661,52743.245.28$41,190
Aug 20046821,49542.375.55$37,195
Jul 20046351,49138.286.08$33,379
Jun 20046281,61436.106.43$33,054
May 20047751,70037.486.49$40,088
Apr 20047741,65534.475.86$36,376
Mar 20048861,63834.365.53$39,501
Feb 20041,0641,42332.455.51$42,367
Jan 20041,0741,39032.036.30$43,157
Dec 20031,1513,09330.266.30$54,320
Nov 20038851,52328.804.60$32,486
Oct 2003893028.174.76$25,156
Sep 20038881,60126.314.75$30,967
Aug 20031,0671,75529.765.13$40,757
Jul 20039711,95329.415.17$38,656
Jun 20031,1421,92228.565.98$44,115
May 20031,1131,81326.595.97$40,423
Apr 20038861,57826.675.41$32,162
Mar 20031,0701,73031.146.10$43,866
Feb 20039831,24033.487.93$42,739
Jan 20031,0141,26430.315.58$37,790
Dec 20021,1531,55126.914.85$38,555
Nov 20021,0251,48624.664.14$31,424
Oct 20021,2621,57426.464.23$40,049
Sep 20021,0851,70427.443.64$35,967
Aug 20021,2031,62125.963.16$36,359
Jul 20021,0942,34924.583.06$34,083
Jun 20021,2491,23523.733.34$33,762
May 20021,1311,16824.663.58$32,077
Apr 20027251,06123.653.51$20,873
Mar 20029611,10822.003.10$24,580
Feb 200270793918.222.38$15,112
Jan 20029561,73717.172.38$20,541
Dec 20019303,75216.932.36$24,616
Nov 20011,07087018.072.41$21,428
Oct 200196238219.782.53$19,994
Sep 20011,22275424.262.25$31,343
Aug 20011,02499724.873.05$28,511
Jul 200198392423.933.20$26,477
Jun 20019021,04524.563.82$26,149
May 20011,0221,24125.524.31$31,427
Apr 20019901,01424.685.34$29,843
Mar 20011,1742,15424.545.38$40,391
Feb 20018563,65227.755.77$44,815
Jan 20011,0973,59327.478.40$60,311
Dec 20009422,58126.889.12$48,866
Nov 20001,2502,49832.215.66$54,396
Oct 20001,1562,63031.235.15$49,635
Sep 20001,2424,53531.875.19$63,103
Aug 20001,0804,45229.644.54$52,227
Jul 20007181,59828.534.09$27,020
Jun 200075195729.304.40$26,212
May 20004991,04727.263.68$17,455
Apr 200070999324.513.12$20,472
Mar 200060087528.422.86$19,554
Feb 200063180727.622.73$19,629
Jan 200080986125.272.48$22,579
Dec 199974983224.282.42$20,202
Nov 199972088123.192.43$18,841
Oct 199963090620.982.80$15,758
Sep 199960987921.752.62$15,548
Aug 199961988319.262.88$14,461
Jul 199962692017.892.37$13,382
Jun 19996211,34215.942.36$13,069
May 199940659415.792.32$7,789
Apr 199962464415.102.21$10,844
Mar 199971880212.471.84$10,428
Feb 19997767449.981.82$9,097
Jan 19997101,01710.381.90$9,302
Dec 19987619819.201.77$8,741
Nov 19986631,83110.892.19$11,222
Oct 19987412,21512.421.97$13,565
Sep 19989542,18012.592.08$16,551
Aug 19989122,28311.301.91$14,660
Jul 19981,0492,34411.742.24$17,559
Jun 19988252,08311.242.24$13,933
May 19989202,01212.622.21$16,050
Apr 19987352,22713.042.51$15,164
Mar 19989642,22912.802.31$17,487
Feb 19988642,10713.952.30$16,897
Jan 19989022,20014.702.15$18,000
Dec 19978633,16716.322.41$21,720
Nov 19979093,70418.193.09$27,974
Oct 19971,0393,90019.253.15$32,285
Sep 19978713,85517.742.95$26,843
Aug 19971,0994,28417.862.55$30,573
Jul 19978783,59517.582.25$23,513
Jun 19977693,83617.242.26$21,916
May 19971,0013,82718.972.31$27,824
Apr 19971,1063,57017.882.08$27,211
Mar 19971,0113,79418.951.94$26,516
Feb 19979713,22420.492.21$27,008
Jan 19979943,58323.483.54$36,022
Dec 19961,1074,06523.32$25,815
Nov 19969213,62321.97$20,234
Oct 19961,0193,85523.31$23,753
Sep 19961,0603,85122.22$23,553
Aug 19961,0354,07520.26$20,969
Jul 19961,0544,08219.55$20,606
Jun 19969263,83118.73$17,344
May 19961,0453,75219.43$20,304
Apr 19961,0423,79021.51$22,413
Mar 19961,1023,55219.38$21,357
Feb 19961,1703,58716.98$19,867
Jan 19961,3444,34517.07$22,942
Dec 19951,3754,10517.19$23,636
Nov 19951,4093,49816.00$22,544
Oct 19951,1693,92115.43$18,038
Sep 19951,0963,66416.18$17,733
Aug 19951,2754,16515.92$20,298
Jul 19951,1283,96415.24$17,191
Jun 19951,0313,26316.41$16,919
May 19951,2383,56417.56$21,739
Apr 19951,1333,51317.73$20,088
Mar 19951,3013,51116.44$21,388
Feb 19951,0362,86716.58$17,177
Jan 19951,2242,91615.92$19,486
Dec 19941,3493,29315.03$20,275
Nov 19941,0833,07815.90$17,220
Oct 19941,1443,70215.58$17,824
Sep 19941,2393,95115.29$18,944
Aug 19941,2794,43416.13$20,630
Jul 19941,2894,32117.56$22,635
Jun 19941,3514,61617.09$23,089
May 19941,3334,27815.88$21,168
Apr 19949912,90514.14$14,013
Mar 19941,3683,78012.46$17,045
Feb 19941,2063,30412.50$15,075
Jan 19941,2433,38512.66$15,736
Dec 19931,2133,04012.33$14,956
Nov 19931,5353,29614.49$22,242
Oct 19931,3093,73915.85$20,748
Sep 19931,4354,08915.03$21,568
Aug 19931,5014,36715.66$23,506
Jul 19931,3314,15015.46$20,577
Jun 19931,3283,94316.79$22,297
May 19931,6274,67817.68$28,765
Apr 19931,4253,77518.05$25,721
Mar 19932,3586,31618.14$42,774
Feb 19931,6264,72617.90$29,105
Jan 19931,4754,18516.93$24,972

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                  396 bbl  × $106.41 =    $42,138
Casinghead gas       768 Mcf  × $  3.05 =     $2,339

────────────────────────────────────────────────────
Month total                                  $44,478

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/15504 is the state's own key, not one this site invented.