PARKS, ROY -B- TG

Operated by COG OPERATING LLC (P-5 166150) in the DORA ROBERTS (ELLENBURGER) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1166District 08Field 25395332Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$35.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$10 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 2 leases and 54 wells, and the rule below applies to all of them.

Discovered
1954-10-10
as the register files it
Field class
Oil
the register's own label
Between wells
1,320 ft
minimum
From a lease line
660 ft
minimum

A drilling unit in this field needs at least 80 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.

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
OilDisposition624,461 bbl$29,566,954
Casinghead gasProduction1,563,962 Mcf$5,944,935
Total$35,511,890

398,330 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 (29)

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 31.8442, -102.2800. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.9 miles.

31.84638, -102.28113 · 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
93.1%
27 of 29 wells
With a plug date
55.2%
16 of 29 wells
Median depth
13,291 ft
26 wells filed one
Completion to plug
18.4 years
median over 13 wells

What the state filed about each well

On the RRC proration schedule
2793.1%
A plug date is filed
1655.2%
BothOn the schedule and plugged. Neither fact cancels the other.
1655.2%
NeitherNo plug date, and not on the schedule.
26.9%

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, 26 of 29 wells. Median 13,291 ft, with the middle half between 13,180 and 13,350 ft; the shallowest is 11,907 ft and the deepest 13,968 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, 25 of 29 wells, Dec 1966 – Sep 2006. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Dec 1966 – Sep 2006
25 of 29 wells; 4 filed none
Plug dates filed
Oct 1980 – Sep 2025
16 of 29 wells; 13 filed none

Last completion to plug: a median of 18.4 years across the 13 wells that filed both dates, with the middle half between 17.5 years and 30.0 years. A further 1 well is excluded, because the last completion the Commission holds for it 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.

29 wells

42-329019112Yes
42-329019191013,016 ftMay 2006Yes
42-329019221313,236 ftJul 1997Yes
42-3290193030Yes
42-135067221811,907 ftSep 2006Oct 1980Yes
42-32901917813,082 ftMar 2005Sep 2022Yes
42-32901913413,424 ftJan 2005Yes
42-32901910113,420 ftFeb 2003Oct 2013Yes
42-135067242113,289 ftFeb 2003Yes
42-135067211613,114 ftAug 2002Yes
42-32901918913,070 ftMay 2002May 2020Yes
42-329019282813,292 ftMar 2002May 2020Yes
42-329304213413,968 ftAug 2001Jan 2020Yes
42-1350672319D13,316 ftAug 2001
42-329019292913,303 ftApr 2001Jul 2018Yes
42-32901912313,048 ftJun 2000Yes
42-329019261713,316 ftJul 1993Apr 2020Yes
42-329019313113,290 ftJun 1993Jul 2018Yes
42-329019231413,189 ftJul 1991Mar 2022Yes
42-135067262413,416 ftApr 1991Yes
42-329019201113,190 ftDec 1990Feb 1995Yes
42-3290192726Jul 1990Yes
42-329304283513,450 ftJan 1990Jan 2020Yes
42-329019211213,177 ftJul 1988Yes
42-329019862013,319 ftMar 1987Sep 2025Yes
42-32901915613,280 ftDec 1986Yes
42-329019251513,310 ftJul 1983Yes
42-329304113313,360 ftApr 1977
42-329103503213,400 ftDec 1966May 2020Yes

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 20263190106.413.05$898
Apr 2026416198.932.87$858
Mar 2026419489.753.15$970
Feb 2026311763.503.75$629
Jan 202649459.138.00$988
Dec 202549956.664.41$664
Nov 202534958.593.93$368
Oct 202534959.383.30$340
Sep 2025518662.743.08$886
Aug 2025318663.933.01$753
Jul 2025424166.743.32$1,066
Jun 2025633666.483.13$1,450
May 2025267160.553.23$1,804
Apr 20257713562.363.54$5,280
Mar 202512420767.704.27$9,278
Feb 202517316270.884.34$12,965
Jan 202524524074.324.28$19,235
Dec 202419325568.993.12$14,111
Nov 202414735369.052.20$10,926
Oct 202418846771.372.28$14,483
Sep 202422148669.612.36$16,533
Aug 202417944275.632.06$14,450
Jul 202415754879.932.15$13,725
Jun 202416552578.082.63$14,266
May 2024172078.812.20$13,555
Apr 202411039684.451.66$9,947
Mar 202414748980.301.55$12,560
Feb 202419439976.091.78$15,473
Jan 202413722373.023.30$10,739
Dec 202317441171.262.61$13,472
Nov 202317441877.892.81$14,726
Oct 202320759485.443.09$19,520
Sep 2023397689.042.74$3,680
Aug 20236727280.522.67$6,122
Jul 202313741874.852.64$11,359
Jun 20231127668.962.26$7,895
May 202315834170.622.23$11,918
Apr 202313265278.122.24$11,771
Mar 202311057972.852.39$9,399
Feb 202311956975.112.47$10,341
Jan 202313749476.533.39$12,158
Dec 202213769576.415.73$14,450
Nov 202214255785.005.65$15,215
Oct 202217350287.185.86$18,026
Sep 202221770684.888.16$24,183
Aug 202224295894.529.13$31,618
Jul 2022237670101.587.54$29,128
Jun 202253140115.097.98$7,217
May 2022139681109.378.43$20,945
Apr 2022212754104.226.84$27,250
Mar 2022174824108.885.08$23,128
Feb 202214763591.054.86$16,470
Jan 202212536681.844.54$11,891
Dec 202112028071.323.90$9,650
Nov 202112026077.435.24$10,653
Oct 20219317779.795.71$8,432
Sep 20218314769.865.35$6,585
Aug 20217722166.024.22$6,016
Jul 20217321470.783.98$6,019
Jun 20217619969.493.38$5,954
May 20217821863.483.02$5,609
Apr 202110123160.362.76$6,734
Mar 202110223061.302.72$6,878
Feb 20214919557.805.55$3,914
Jan 2021866150.412.81$4,507
Dec 2020632144.642.68$2,869
Nov 202015815038.772.71$6,532
Oct 202013516736.972.48$5,405
Sep 20201401037.091.99$5,213
Aug 2020148039.982.39$5,917
Jul 2020128038.371.83$4,911
Jun 202073034.901.69$2,548
May 202033313616.921.81$5,881
Apr 202076114314.751.80$11,483
Mar 202077116730.341.86$23,702
Feb 202079713949.881.98$40,030
Jan 202087916457.252.09$50,666
Dec 201950811759.012.30$30,247
Nov 2019275655.302.75$1,647
Oct 20194723953.472.42$3,091
Sep 2019744755.052.66$4,199
Aug 2019395253.112.30$2,191
Jul 20197716756.272.46$4,744
Jun 20198012252.782.49$4,526
May 20198421758.482.74$5,507
Apr 2019317062.632.75$2,134
Mar 2019303456.803.06$1,808
Feb 20193020650.852.79$2,101
Jan 20198020746.033.23$4,351
Dec 20188919746.594.19$4,971
Nov 2018415652.934.24$2,407
Oct 20182919361.443.40$2,438
Sep 20182820959.543.11$2,317
Aug 2018304559.403.07$1,920
Jul 2018293065.142.93$1,977
Jun 2018292760.183.08$1,828
May 2018443065.382.90$2,964
Apr 2018316963.842.90$2,179
Mar 20183411161.222.79$2,391
Feb 2018583061.782.77$3,666
Jan 2018923862.874.01$5,936
Dec 2017134257.272.92$7,680
Nov 201714911455.423.12$8,613
Oct 201714635349.292.98$8,250
Sep 201717956647.523.09$10,253
Aug 201713871045.373.00$8,394
Jul 20172991,41843.873.09$17,495
Jun 20173111,38242.493.09$17,481
May 20173561,75845.373.26$21,889
Apr 20173402,07947.933.21$22,973
Mar 20173292,06246.772.98$21,540
Feb 20174011,96350.452.95$26,026
Jan 20174402,07149.413.42$28,821
Dec 20161491,89948.763.72$14,335
Nov 20161671,87442.492.64$12,051
Oct 20163852,33746.193.09$25,005
Sep 20163822,43241.553.10$23,413
Aug 20164012,23841.442.92$23,162
Jul 20164512,30041.622.92$25,497
Jun 20164962,24145.352.69$28,513
May 20163682,18242.521.99$19,992
Apr 20164782,42936.561.99$22,312
Mar 20165182,45033.011.79$21,495
Feb 20166182,57126.472.06$21,664
Jan 20161,4561,66927.352.36$43,768
Dec 20151,2471,66532.362.00$43,685
Nov 20151,0041,40238.792.17$41,984
Oct 20151,2441,63143.552.43$58,134
Sep 20151,1191,36642.992.76$51,874
Aug 20159471,19140.162.87$41,453
Jul 20157361,15548.152.95$38,840
Jun 201526632056.152.88$15,858
May 201586055.212.96$4,748
Apr 201557878249.822.71$30,913
Mar 201575494742.892.93$35,118
Feb 201560890944.662.98$29,859
Jan 201566894743.433.10$31,948
Dec 201463494454.693.59$38,064
Nov 201448690770.464.25$38,100
Oct 201465990178.303.90$55,114
Sep 20148451,31286.164.05$78,113
Aug 20149521,57589.394.04$91,455
Jul 20141,2142,07896.564.18$125,909
Jun 201428719698.164.74$29,100
May 20141,3141,78894.734.73$132,926
Apr 20141,5112,08695.944.81$154,997
Mar 20141,3592,12195.895.06$141,040
Feb 20141,3142,53597.406.19$143,680
Jan 20141,3872,26490.404.86$136,389
Dec 20131,5062,64391.824.35$149,790
Nov 20131,4752,19488.853.74$139,256
Oct 20131,4812,08597.423.78$152,159
Sep 20131,1741,809104.113.72$128,951
Aug 20131,3342,080104.253.52$146,397
Jul 20131,7642,263102.523.72$189,259
Jun 20131,7082,17794.403.93$169,798
May 20131,3381,93194.834.15$134,894
Apr 20131,2241,52493.964.28$121,534
Mar 20131,4862,20893.623.91$147,759
Feb 20131,0931,72391.233.42$105,607
Jan 201398295691.603.42$93,221
Dec 20121,079086.773.42$93,625
Nov 201285326186.953.62$75,114
Oct 201255813989.383.40$50,347
Sep 201267142894.672.92$64,773
Aug 20129941,21292.662.91$95,629
Jul 20127561,08385.133.02$67,630
Jun 20121,4841,47279.822.52$122,161
May 20121,3002,45091.612.49$125,189
Apr 20121,2242,398101.652.00$129,208
Mar 20121,4873,654105.052.22$164,329
Feb 20121,5333,007101.102.57$162,715
Jan 20121,3152,37998.092.73$135,493
Dec 20111,0661,57496.873.24$108,363
Nov 20113604,07995.723.31$47,966
Oct 20111,8959,19084.983.65$194,567
Sep 20111,8917,93383.623.99$189,745
Aug 20111,3485,60383.404.15$135,672
Jul 20111,7225,20094.144.52$185,599
Jun 20111,2379,26792.904.64$157,915
May 20111,68811,56298.134.40$216,572
Apr 20112926,639105.964.33$59,709
Mar 20111,1721,18196.364.06$117,726
Feb 20112,0603,34785.644.18$190,409
Jan 20112,9795,29986.504.59$281,999
Dec 20101,6095,38785.734.35$161,361
Nov 20101,8853,52880.843.80$165,773
Oct 20102,0112,52678.103.51$165,923
Sep 20101,4852,41472.633.98$117,462
Aug 20102,0623,63573.684.42$167,993
Jul 20101,4054,10072.554.74$121,352
Jun 20109623,53970.364.91$85,064
May 20107262,31471.124.24$61,433
Apr 20101,3813,07481.694.12$125,487
Mar 20101,4494,30278.394.39$132,467
Feb 20101,6624,65873.585.44$147,640
Jan 20102,0075,46974.365.96$181,858
Dec 20092,3506,19571.445.48$201,856
Nov 20092,3705,70574.593.75$198,181
Oct 20092,8755,84272.544.11$232,565
Sep 20092,5385,17565.543.06$182,201
Aug 20092,6785,58367.423.22$198,520
Jul 20093,1285,30061.133.46$209,576
Jun 20092,3395,42566.163.90$175,879
May 20092,6985,89654.743.93$170,835
Apr 20093,3306,09246.773.59$177,599
Mar 20092,9874,88342.144.06$145,692
Feb 20093,0203,92232.814.63$117,257
Jan 20093,8083,68735.865.37$156,358
Dec 20083,6054,71637.105.98$161,934
Nov 20082,7643,16255.496.86$175,067
Oct 20082,5682,61375.246.92$211,303
Sep 20083,0453,407101.767.88$336,696
Aug 20082,6938,982114.228.48$383,789
Jul 20082,82510,721131.0811.39$492,407
Jun 20082,3559,155131.3313.03$428,596
May 20082,9749,447123.1711.57$475,650
Apr 20082,97211,060110.3110.45$443,472
Mar 20083,20510,917101.909.66$432,092
Feb 20082,26710,07592.538.77$298,129
Jan 20083,23210,83490.388.21$381,009
Dec 20072,7959,45188.337.30$315,893
Nov 20072,2482,42091.677.29$223,720
Oct 20073,2573,97682.856.92$297,364
Sep 20072,8623,95675.846.24$241,756
Aug 20073,8075,03969.066.39$295,100
Jul 20073,7914,60370.906.39$298,186
Jun 20073,2024,61462.007.55$233,353
May 20073,5895,30058.747.85$252,403
Apr 20073,7695,86859.617.81$270,471
Mar 20074,1556,27956.927.30$282,352
Feb 20073,1074,94855.108.22$211,848
Jan 20074,1424,53350.306.73$238,835
Dec 20063,9924,03956.656.92$254,090
Nov 20062,9484,23154.207.62$192,011
Oct 20062,8423,55454.906.01$177,399
Sep 20062,6613,19160.085.04$175,947
Aug 20063,0574,49568.717.34$243,039
Jul 20063,8505,13669.376.34$299,651
Jun 20063,2355,25966.286.38$247,989
May 20062,7144,33266.016.42$206,984
Apr 20062,8343,79764.397.36$210,429
Mar 20062,8634,14656.707.08$191,698
Feb 20062,8244,24957.597.75$195,569
Jan 20063,0995,42360.598.93$236,214
Dec 20053,5375,01654.9413.42$261,614
Nov 20052,8565,66654.6910.59$216,189
Oct 20053,3996,03558.3413.80$281,555
Sep 20052,8855,14861.4512.08$239,466
Aug 20053,5625,58561.519.80$273,814
Jul 20053,3925,00855.697.84$228,181
Jun 20053,7185,52652.337.38$235,351
May 20054,5205,67345.226.65$242,126
Apr 20054,2975,59349.207.36$252,580
Mar 20054,4245,42250.377.15$261,631
Feb 20054,4615,03945.226.31$233,532
Jan 20054,8335,63743.166.32$244,231
Dec 20043,9464,28339.866.75$186,202
Nov 20044,6595,43345.286.33$245,353
Oct 20044,3539,92349.706.52$280,993
Sep 20044,2649,08043.245.28$232,353
Aug 20045,0249,45042.375.55$265,321
Jul 20044,0319,24338.286.08$210,543
Jun 20044,9888,50936.106.43$234,805
May 20044,5579,02137.486.49$229,384
Apr 20044,6179,87234.475.86$216,983
Mar 20044,9697,64134.365.53$212,991
Feb 20045,0737,74432.455.51$207,285
Jan 20045,5648,49132.036.30$231,705
Dec 20035,3839,41230.266.30$222,201
Nov 20035,4029,14928.804.60$197,619
Oct 20035,5468,94128.174.76$198,787
Sep 20034,3019,84326.314.75$159,907
Aug 20035,3229,27229.765.13$205,945
Jul 20035,3478,05429.415.17$198,901
Jun 20035,7776,87528.565.98$206,124
May 20035,0966,74626.595.97$175,794
Apr 20035,5127,35026.675.41$186,749
Mar 20036,6359,07731.146.10$261,948
Feb 20035,3639,17233.487.93$252,249
Jan 20035,18810,20530.315.58$214,213
Dec 20026,0989,24026.914.85$208,946
Nov 20025,4008,38224.664.14$167,840
Oct 20025,5766,96426.464.23$176,993
Sep 20025,1576,35827.443.64$164,621
Aug 20025,3218,35525.963.16$164,570
Jul 20025,5856,39524.583.06$156,859
Jun 20025,3127,23523.733.34$150,206
May 20026,89510,45624.663.58$207,505
Apr 20025,5977,23223.653.51$157,770
Mar 20025,88110,18522.003.10$160,983
Feb 20024,0627,79818.222.38$92,535
Jan 20024,5137,34817.172.38$94,945
Dec 20016,0077,68316.932.36$119,864
Nov 20015,4118,15018.072.41$117,382
Oct 20016,67411,61319.782.53$161,380
Sep 200110,15117,18824.262.25$284,959
Aug 20014,5706,83524.873.05$134,524
Jul 20012,9967,39323.933.20$95,330
Jun 20012,0274,06624.563.82$65,332
May 20012,0565,42025.524.31$75,815
Apr 20012,1785,12924.685.34$81,118
Mar 20012,1975,53524.545.38$83,673
Feb 20012,3895,54027.755.77$98,244
Jan 20011,7934,41727.478.40$86,351
Dec 20001,4764,30426.889.12$78,938
Nov 20001,3624,82432.215.66$71,164
Oct 20001,5294,91331.235.15$73,031
Sep 20001,8144,98531.875.19$83,667
Aug 20001,4515,19929.644.54$66,615
Jul 20001,5814,96928.534.09$65,428
Jun 20001,5864,47429.304.40$66,143
May 20001,6714,54427.263.68$62,272
Apr 20001,4624,81924.513.12$50,850
Mar 20001,7744,72028.422.86$63,915
Feb 20001,4094,28927.622.73$50,611
Jan 20001,5033,26725.272.48$46,085
Dec 19991,4814,39924.282.42$46,621
Nov 19991,8453,33423.192.43$50,900
Oct 19991,4983,60720.982.80$41,541
Sep 199985198121.752.62$21,078
Aug 19999291,90319.262.88$23,365
Jul 19991,1181,84017.892.37$24,366
Jun 19991,2083,77915.942.36$28,182
May 19991,2873,91315.792.32$29,404
Apr 19991,2882,97715.102.21$26,022
Mar 19991,8096,97312.471.84$35,377
Feb 1999009.981.82$0
Jan 19990010.381.90$0
Dec 1998009.201.77$0
Nov 19980010.892.19$0
Oct 19980012.421.97$0
Sep 19980012.592.08$0
Aug 19980011.301.91$0
Jul 19980011.742.24$0
Jun 199849011.242.24$551
May 19980012.622.21$0
Apr 19980013.042.51$0
Mar 19980012.802.31$0
Feb 19980013.952.30$0
Jan 19980014.702.15$0
Dec 19972771,34116.322.41$7,754
Nov 19972755,46118.193.09$21,867
Oct 19976124,91419.253.15$27,259
Sep 19973905,58717.742.95$23,428
Aug 19973725,57917.862.55$20,897
Jul 19974275,35217.582.25$19,532
Jun 19971,15011,71917.242.26$46,278
May 19971,04911,40918.972.31$46,237
Apr 19971,06011,82817.882.08$43,588
Mar 19971,18811,72518.951.94$45,249
Feb 19971,1519,36220.492.21$44,236
Jan 19971,37311,85323.483.54$74,194
Dec 19961,49814,04623.32$34,933
Nov 19961,06711,41221.97$23,442
Oct 19961,17711,51723.31$27,436
Sep 199678913,86022.22$17,532
Aug 199691012,75020.26$18,437
Jul 199698112,87119.55$19,179
Jun 19965195,11918.73$9,721
May 19964954,47319.43$9,618
Apr 19965793,74421.51$12,454
Mar 19961,1076,32319.38$21,454
Feb 19961,0486,81716.98$17,795
Jan 19961,1886,41617.07$20,279
Dec 19951,1776,43917.19$20,233
Nov 19951,1147,36016.00$17,824
Oct 19951,2699,59715.43$19,581
Sep 19951,0337,67716.18$16,714
Aug 19951,0828,87915.92$17,225
Jul 19951,1348,17815.24$17,282
Jun 19956814,57416.41$11,175
May 19951,0816,56317.56$18,982
Apr 19959676,49417.73$17,145
Mar 19958797,32616.44$14,451
Feb 19951,0548,28416.58$17,475
Jan 19951,1328,95215.92$18,021
Dec 19941,2408,42115.03$18,637
Nov 19941,2649,36815.90$20,098
Oct 19941,1409,69215.58$17,761
Sep 19949849,08015.29$15,045
Aug 199490210,86716.13$14,549
Jul 199481510,09817.56$14,311
Jun 19945497,68217.09$9,382
May 19947707,34615.88$12,228
Apr 19948313,93614.14$11,750
Mar 19949355712.46$1,159
Feb 19943792,04012.50$4,738
Jan 19942731,90212.66$3,456
Dec 19932552,25112.33$3,144
Nov 19932671,88114.49$3,869
Oct 19935283,00615.85$8,369
Sep 19931,61014,00415.03$24,198
Aug 19931,90910,66415.66$29,895
Jul 19931,06210,13515.46$16,419
Jun 199371510,51516.79$12,005
May 19931,04011,87517.68$18,387
Apr 19931,21413,80718.05$21,913
Mar 19931,0297,77218.14$18,666
Feb 19931,49513,74517.90$26,761
Jan 19932,08218,01516.93$35,248

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                    3 bbl  × $106.41 =       $319
Casinghead gas       190 Mcf  × $  3.05 =       $579

────────────────────────────────────────────────────
Month total                                     $898

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/1166 is the state's own key, not one this site invented.