STRAIN, C. H.

Operated by JETTA OPERATING COMPANY, INC. (P-5 432283) in the WAHA, NORTH (DELAWARE SAND) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 15856District 08Field 94650333Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$28.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$688 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 16 leases and 60 wells, and the rule below applies to all of them.

Discovered
1960-12-23
as the register files it
Field class
Oil and gas
the register's own label
Between wells
1,100 ft
minimum
From a lease line
550 ft
minimum

A drilling unit in this field needs at least 40 acres. The field rule took effect on 1970-09-04.

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: NET GOR RULE 1000 MCF & MULTI 49-B RULE.

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
OilDisposition519,568 bbl$25,911,577
Casinghead gasProduction1,050,967 Mcf$2,533,458
Total$28,445,036

436,691 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 (16)

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 31.3250, -103.1119. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.9 miles.

31.32423, -103.11127 · 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
31.3%
5 of 16 wells
With a plug date
31.3%
5 of 16 wells
Median depth
5,000 ft
9 wells filed one
Completion to plug
30.6 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
531.3%
A plug date is filed
531.3%
BothOn the schedule and plugged. Neither fact cancels the other.
531.3%
NeitherNo plug date, and not on the schedule.
1168.8%

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

Total depth in feet, 9 of 16 wells. Median 5,000 ft, with the middle half between 4,972 and 5,020 ft; the shallowest is 4,940 ft and the deepest 5,032 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, 5 of 16 wells, Sep 1972 – Jul 2009. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Sep 1972 – Jul 2009
5 of 16 wells; 11 filed none
Plug dates filed
Jul 2013 – Oct 2021
5 of 16 wells; 11 filed none

Last completion to plug: a median of 30.6 years across the 3 wells that filed both dates, with the middle half between 17.3 years and 39.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

16 wells

42-38930221115,000 ftJul 2013Yes
42-38930236155,020 ftOct 2021Yes
42-389003851
42-389003863
42-389003874
42-389003885
42-389003896
42-389003907
42-389003918
42-3893019894,940 ft
42-38930233134,972 ft
42-38930237145,000 ftJul 2009Jul 2013Yes
42-38931279185,032 ftMar 1991Oct 2021Yes
42-38931155174,990 ftJan 1981
42-38930891164,965 ftJan 1978
42-38930232125,031 ftSep 1972Oct 2021Yes

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 2026666550106.413.05$72,544
Apr 202657572698.932.87$58,968
Mar 202667546689.753.15$62,049
Feb 202673810963.503.75$47,272
Jan 202681521859.138.00$49,935
Dec 202586536356.664.41$50,613
Nov 202584131958.593.93$50,527
Oct 20251,12263059.383.30$68,706
Sep 202581653962.743.08$52,854
Aug 202573847463.933.01$48,609
Jul 202588433166.743.32$60,095
Jun 202596940366.483.13$65,680
May 202589716260.553.23$54,837
Apr 202592343662.363.54$59,103
Mar 20251,11249267.704.27$77,382
Feb 202593949870.884.34$68,718
Jan 202589744474.324.28$68,565
Dec 202460841768.993.12$43,248
Nov 202473028069.052.20$51,022
Oct 202466521171.372.28$47,942
Sep 2024723069.612.36$50,328
Aug 202493489575.632.06$72,485
Jul 202496538879.932.15$77,965
Jun 202490883478.082.63$73,093
May 202485797678.812.20$69,686
Apr 202484754084.451.66$72,425
Mar 202477868280.301.55$63,527
Feb 202466590276.091.78$52,209
Jan 202476546173.023.30$57,381
Dec 202381267471.262.61$59,623
Nov 202384840577.892.81$67,188
Oct 202384322485.443.09$72,717
Sep 202391029689.042.74$81,836
Aug 202399846180.522.67$81,591
Jul 20231,15853474.852.64$88,087
Jun 202396565568.962.26$68,026
May 20231,0831,08870.622.23$78,905
Apr 202394396878.122.24$75,833
Mar 202398884572.852.39$73,998
Feb 2023941075.112.47$70,679
Jan 20231,01232876.533.39$78,560
Dec 20221,02042276.415.73$80,356
Nov 20221,01347785.005.65$88,798
Oct 20221,35538787.185.86$120,398
Sep 20221,133084.888.16$96,169
Aug 202256549594.529.13$57,922
Jul 2022327139101.587.54$34,265
Jun 202261345115.097.98$70,909
May 20221,153150109.378.43$127,369
Apr 202288978104.226.84$93,185
Mar 2022900210108.885.08$99,058
Feb 20221,00226091.054.86$92,495
Jan 202262913081.844.54$52,067
Dec 202175042971.323.90$55,163
Nov 20211,13021777.435.24$88,632
Oct 20211,00343579.795.71$82,515
Sep 202176646769.865.35$56,012
Aug 2021749066.024.22$49,449
Jul 20217489270.783.98$53,310
Jun 2021376069.493.38$26,128
May 2021740063.483.02$46,975
Apr 2021498060.362.76$30,059
Mar 2021783061.302.72$47,998
Feb 20215001657.805.55$28,989
Jan 2021998050.412.81$50,309
Dec 20207452644.642.68$33,326
Nov 202049033738.772.71$19,909
Oct 202074952536.972.48$28,992
Sep 202074859037.091.99$28,918
Aug 202061914139.982.39$25,084
Jul 202099394238.371.83$39,821
Jun 202074995634.901.69$27,756
May 202087799016.921.81$16,635
Apr 20201,14072514.751.80$18,123
Mar 20208921,03830.341.86$28,990
Feb 20201,10592449.881.98$56,948
Jan 202099885057.252.09$58,916
Dec 20191,00498359.012.30$61,511
Nov 201998948955.302.75$56,037
Oct 201976774253.472.42$42,806
Sep 201998698955.052.66$56,907
Aug 201988483453.112.30$48,871
Jul 201976431756.272.46$43,770
Jun 201998390052.782.49$54,125
May 20198861,26758.482.74$55,285
Apr 20191,06393462.632.75$69,145
Mar 20191,0051,03356.803.06$60,247
Feb 201984982850.852.79$45,484
Jan 201909546.033.23$307
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20181,01960661.222.79$64,072
Feb 20181,4551,19161.782.77$93,184
Jan 20181,7581,19862.874.01$115,329
Dec 20171,46492857.272.92$86,554
Nov 20171,3261,02455.423.12$76,680
Oct 20171,31673049.292.98$67,044
Sep 20171,2991,11547.523.09$65,171
Aug 20171,5951,25245.373.00$76,127
Jul 20171,5971,22043.873.09$73,827
Jun 20171,5891,02842.493.09$70,690
May 20171,1611,19845.373.26$56,584
Apr 20171,4301,23647.933.21$72,509
Mar 20171,4521,19946.772.98$71,487
Feb 20171,30472750.452.95$67,933
Jan 20171,4451,24049.413.42$75,637
Dec 20161,44175948.763.72$73,089
Nov 20161,5831,24142.492.64$70,543
Oct 20161,5971,39446.193.09$78,073
Sep 20161,2991,13341.553.10$57,486
Aug 20161,3021,16741.442.92$57,368
Jul 20161,59354741.622.92$67,900
Jun 20161,29777045.352.69$60,887
May 20161,5931,15242.521.99$70,028
Apr 20161,3011,11536.561.99$49,785
Mar 20161,3211,31133.011.79$45,958
Feb 20161,3301,10426.472.06$37,483
Jan 20161,6141,14227.352.36$46,843
Dec 20151,6161,31432.362.00$54,924
Nov 20151,15496038.792.17$46,844
Oct 20151,76095143.552.43$78,956
Sep 20151,31658342.992.76$58,183
Aug 20151,6011,25540.162.87$67,901
Jul 20151,47882648.152.95$73,598
Jun 20151,3141,57356.152.88$78,316
May 20151,5921,09955.212.96$91,142
Apr 20151,49384049.822.71$76,655
Mar 20151,93146442.892.93$84,182
Feb 20151,08990644.662.98$51,331
Jan 20151,3451,28643.433.10$62,401
Dec 20141,4681,55354.693.59$85,862
Nov 20141,7601,58970.464.25$130,766
Oct 20141,4641,58478.303.90$120,810
Sep 20141,6481,37486.164.05$147,550
Aug 20141,57080489.394.04$143,587
Jul 20141,4691,47796.564.18$148,020
Jun 20141,6451,71598.164.74$169,597
May 20141,6821,32294.734.73$165,584
Apr 20141,4611,69095.944.81$148,296
Mar 20141,3181,94695.895.06$136,224
Feb 201495386597.406.19$98,178
Jan 20141,6421,39890.404.86$155,232
Dec 20131,6391,71591.824.35$157,961
Nov 20131,82395888.853.74$165,555
Oct 20131,47140797.423.78$144,843
Sep 20131,357709104.113.72$143,913
Aug 20131,324856104.253.52$141,042
Jul 20131,285912102.523.72$135,129
Jun 20131,0421,21494.403.93$103,140
May 20131,4851,27694.834.15$146,117
Apr 20131,4561,34593.964.28$142,566
Mar 20131,1821,38993.623.91$116,094
Feb 20131,0231,07891.233.42$97,015
Jan 20131,4881,49991.603.42$141,427
Dec 20121,4931,61186.773.42$135,057
Nov 20121,3411,53686.953.62$122,168
Oct 20121,6591,84589.383.40$154,554
Sep 20121,3451,36494.672.92$131,312
Aug 20121,5351,42192.662.91$146,366
Jul 20121,3971,66085.133.02$123,941
Jun 20121,2521,16679.822.52$102,872
May 20121,5581,72891.612.49$147,028
Apr 20121,5051,955101.652.00$156,887
Mar 20121,1991,144105.052.22$128,497
Feb 20121,2311,021101.102.57$127,078
Jan 20121,5461,24998.092.73$155,062
Dec 20111,3752,02196.873.24$139,744
Nov 20111,5121,61395.723.31$150,070
Oct 20111,5111,88984.983.65$135,297
Sep 20111,6561,87083.623.99$145,928
Aug 20111,6792,09883.404.15$148,734
Jul 20111,5912,10294.144.52$159,272
Jun 20111,5162,08592.904.64$150,511
May 20111,50779098.134.40$151,362
Apr 20111,8371,060105.964.33$199,242
Mar 20111,8621,04696.364.06$183,666
Feb 201191893385.644.18$82,517
Jan 20111,6641,60686.504.59$151,306
Dec 20101,7981,64285.734.35$161,282
Nov 20101,6571,52880.843.80$139,751
Oct 20101,7901,82578.103.51$146,203
Sep 20101,3481,83572.633.98$105,208
Aug 201090497473.684.42$70,911
Jul 20101,7851,04672.554.74$134,456
Jun 20101,52993470.364.91$112,167
May 20101,7941,15871.124.24$132,494
Apr 20101,4921,95481.694.12$129,937
Mar 20101,4901,14578.394.39$121,826
Feb 20101,3531,04873.585.44$105,257
Jan 20101,62487874.365.96$125,997
Dec 20091,8031,06871.445.48$134,663
Nov 20091,4821,17974.593.75$114,965
Oct 200973662672.544.11$55,962
Sep 20091,05390865.543.06$71,796
Aug 20091,50970367.423.22$103,999
Jul 20091,60062561.133.46$99,973
Jun 20091,6301,12466.163.90$112,219
May 20091,6351,35054.743.93$94,800
Apr 20091,6271,33346.773.59$80,877
Mar 20091,7911,32542.144.06$80,851
Feb 20091,1951,18432.814.63$44,693
Jan 20091,7961,41235.865.37$71,988
Dec 20081,9471,35837.105.98$80,351
Nov 20081,4781,28755.496.86$90,844
Oct 20081,4961,17875.246.92$120,713
Sep 20081,5401,248101.767.88$166,541
Aug 20082,1751,232114.228.48$258,880
Jul 20087811,375131.0811.39$118,034
Jun 20081,1421,111131.3313.03$164,458
May 20081,2691,577123.1711.57$174,555
Apr 20081,3401,206110.3110.45$160,424
Mar 20081,5051,711101.909.66$169,895
Feb 20081,4861,47792.538.77$150,454
Jan 20081,5981,47590.388.21$156,531
Dec 20079571,34588.337.30$94,353
Nov 20071,5821,37791.677.29$155,063
Oct 20071,4631,45682.856.92$131,288
Sep 20071,07098075.846.24$87,268
Aug 20071,2331,32969.066.39$93,641
Jul 200776080870.906.39$59,045
Jun 20071,07483762.007.55$72,906
May 20071,2451,00258.747.85$80,993
Apr 20071,24993659.617.81$81,759
Mar 20071,7211,78156.927.30$110,964
Feb 20071,8701,76655.108.22$117,546
Jan 20071,8202,05750.306.73$105,383
Dec 20061,4351,16856.656.92$89,373
Nov 20061,3881,71054.207.62$88,255
Oct 20068161,45954.906.01$53,573
Sep 20069321,31560.085.04$62,618
Aug 20069601,33068.717.34$75,724
Jul 20061,2081,80369.376.34$95,235
Jun 20061,5951,94366.286.38$118,120
May 20069462,07866.016.42$75,797
Apr 20061,4332,00964.397.36$107,058
Mar 20061,4862,12056.707.08$99,272
Feb 20061,2091,99657.597.75$85,098
Jan 20061,8142,81760.598.93$135,075
Dec 20051,8783,40254.9413.42$148,817
Nov 20051,9052,53954.6910.59$131,068
Oct 20051,2752,52158.3413.80$109,163
Sep 20051,5942,37461.4512.08$126,627
Aug 20051,0182,07061.519.80$82,897
Jul 20051,5192,35955.697.84$103,096
Jun 20051,5052,51052.337.38$97,283
May 20051,0102,66845.226.65$63,417
Apr 20051,5432,22749.207.36$92,307
Mar 20051,9205,61450.377.15$136,878
Feb 20051,5152,70545.226.31$85,582
Jan 20051,7222,54943.166.32$90,437
Dec 20041,7472,30539.866.75$85,197
Nov 20041,0171,02945.286.33$52,564
Oct 20048301,56749.706.52$51,460
Sep 200499097843.245.28$47,975
Aug 20041,3301,18242.375.55$62,913
Jul 20041,3452,30638.286.08$65,517
Jun 20041,6982,14736.106.43$75,109
May 20041,3662,02337.486.49$64,336
Apr 20042,0302,18534.475.86$82,775
Mar 20041,3792,69134.365.53$62,264
Feb 20041,9093,12232.455.51$79,148
Jan 20041,7102,53332.036.30$70,728
Dec 20032,0682,91630.266.30$80,953
Nov 20032,0863,20928.804.60$74,823
Oct 20031,7012,81028.174.76$61,292
Sep 20039861,74926.314.75$34,248
Aug 20031,6722,49629.765.13$62,563
Jul 20031,7072,25229.415.17$61,848
Jun 20031,8172,11328.565.98$64,536
May 20031,4971,63826.595.97$49,588
Apr 20032,3532,88026.675.41$78,327
Mar 20032,0482,91531.146.10$81,545
Feb 20031,8802,52433.487.93$82,947
Jan 20032,0172,50130.315.58$75,096
Dec 20021,5522,12426.914.85$52,074
Nov 20021,3601,66624.664.14$40,430
Oct 20021,5201,26326.464.23$45,561
Sep 20021,6941,82027.443.64$53,099
Aug 20021,6922,07725.963.16$50,496
Jul 20021,8201,41024.583.06$49,053
Jun 20021,4931,97723.733.34$42,029
May 20021,77249524.663.58$45,472
Apr 20021,4742,27323.653.51$42,844
Mar 20021,6883,27922.003.10$47,310
Feb 20021,3472,30518.222.38$30,018
Jan 20021,3922,19417.172.38$29,113
Dec 20011,8642,14416.932.36$36,627
Nov 20011,58494718.072.41$30,901
Oct 20011,57220819.782.53$31,620
Sep 20011,4092,45724.262.25$39,714
Aug 20011,8372,93124.873.05$54,635
Jul 20011,1702,17723.933.20$34,958
Jun 20011,6043,30724.563.82$52,041
May 20011,6113,63025.524.31$56,748
Apr 20011,8653,94924.685.34$67,097
Mar 20011,7894,50424.545.38$68,118
Feb 20011,7794,71427.755.77$76,553
Jan 20011,9334,91227.478.40$94,354
Dec 20001,7983,45626.889.12$79,858
Nov 20002,0722,72532.215.66$82,157
Oct 20001,6054,49831.235.15$73,269
Sep 20001,4222,84231.875.19$60,059
Aug 20001,5733,63829.644.54$63,143
Jul 20001,7053,86628.534.09$64,455
Jun 20001,5573,79229.304.40$62,294
May 20001,7153,93127.263.68$61,216
Apr 20001,2784,06124.513.12$43,978
Mar 20001,5754,28828.422.86$57,024
Feb 20001,3834,19927.622.73$49,647
Jan 20001,8314,12625.272.48$56,504
Dec 19991,5534,02924.282.42$47,472
Nov 19991,6174,45923.192.43$48,351
Oct 19991,4854,21320.982.80$42,967
Sep 19991,3154,54721.752.62$40,509
Aug 19991,5894,51819.262.88$43,596
Jul 19991,1333,34317.892.37$28,200
Jun 19991,0143,58615.942.36$24,634
May 19991,4665,27515.792.32$35,392
Apr 19991,1334,15615.102.21$26,285
Mar 19991,5205,56512.471.84$29,185
Feb 19991,5175,1989.981.82$24,589
Jan 19991,4475,75410.381.90$25,952
Dec 19981,6465,4919.201.77$24,881
Nov 19981,3696,00010.892.19$28,023
Oct 19981,2125,89212.421.97$26,656
Sep 19981,4275,96712.592.08$30,393
Aug 19981,0806,53111.301.91$24,661
Jul 19981,2286,30711.742.24$28,527
Jun 19981,3145,85011.242.24$27,857
May 19981,3926,76912.622.21$32,502
Apr 19981,3906,98013.042.51$35,613
Mar 19981,7467,33612.802.31$39,291
Feb 19981,5235,40913.952.30$33,682
Jan 19981,2434,87614.702.15$28,779
Dec 19979703,63916.322.41$24,604
Nov 19971,0023,79118.193.09$29,934
Oct 19971,2903,99219.253.15$37,407
Sep 19979994,75917.742.95$31,785
Aug 19971,3345,33917.862.55$37,465
Jul 19971,2755,94017.582.25$35,761
Jun 19971,3905,64517.242.26$36,705
May 19971,2495,72418.972.31$36,907
Apr 19971,4204,98717.882.08$35,776
Mar 19971,4765,78118.951.94$39,180
Feb 19971,1615,78120.492.21$36,541
Jan 19971,6836,19223.483.54$61,435
Dec 19961,7066,97523.32$39,784
Nov 19961,5246,61821.97$33,482
Oct 19969716,75023.31$22,634
Sep 19961,0546,10722.22$23,420
Aug 19961,0326,69720.26$20,908
Jul 19969895,86919.55$19,335
Jun 19967406,87218.73$13,860
May 19961,3227,54319.43$25,686
Apr 19961,2276,93021.51$26,393
Mar 19961,4726,32319.38$28,527
Feb 19961,0286,42616.98$17,455
Jan 19961,4367,63617.07$24,513
Dec 19951,3407,44217.19$23,035
Nov 19951,1984,11316.00$19,168
Oct 19951,6347,70815.43$25,213
Sep 19951,2017,15416.18$19,432
Aug 19957305,97915.92$11,622
Jul 19951,2286,93115.24$18,715
Jun 19951,3336,35416.41$21,875
May 19958514,14517.56$14,944
Apr 19951,2326,12717.73$21,843
Mar 19951,5907,99716.44$26,140
Feb 19959106,53116.58$15,088
Jan 19958845,71015.92$14,073
Dec 19941,1007,56715.03$16,533
Nov 19941,1488,13515.90$18,253
Oct 19941,1958,99115.58$18,618
Sep 19941,1378,54915.29$17,385
Aug 19941,1988,93616.13$19,324
Jul 19941,3999,80917.56$24,566
Jun 19941,46811,46217.09$25,088
May 19941,41912,11315.88$22,534
Apr 19941,42910,93814.14$20,206
Mar 19941,35010,63612.46$16,821
Feb 19941,6229,57312.50$20,275
Jan 19941,3969,05812.66$17,673
Dec 19931,4789,99612.33$18,224
Nov 19931,76611,89514.49$25,589
Oct 19931,63112,39615.85$25,851
Sep 19931,34211,07815.03$20,170
Aug 19931,83213,84815.66$28,689
Jul 19931,44112,88215.46$22,278
Jun 19931,82212,74616.79$30,591
May 19931,90514,15417.68$33,680
Apr 19932,18925,98818.05$39,511
Mar 19932,77713,15718.14$50,375
Feb 19932,45713,14317.90$43,980
Jan 19932,60412,70416.93$44,086

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                  666 bbl  × $106.41 =    $70,869
Casinghead gas       550 Mcf  × $  3.05 =     $1,675

────────────────────────────────────────────────────
Month total                                  $72,544

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/15856 is the state's own key, not one this site invented.