ROBERTS, DORA, B. D. & E.

Operated by SHERIDAN PRODUCTION COMPANY, LLC (P-5 775854) in the HOWARD GLASSCOCK field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 2827District 08Field 42971001OilCasinghead gasSave
Value, all time
$171.6 M
Jan 1993 – Aug 2012
Value, last 12 filed months
$3.1 M
at the published price for each month
Months reported
236
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
OilDisposition5,326,655 bbl$171,505,595
Casinghead gasProduction16,937 Mcf$101,939
Total$171,607,534

897 Mcf of this lease's gas, across 21 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 (211)

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 32.1016, -101.3480. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles. 2 wells have no surveyed location and are left out of it.

32.09971, -101.34922 · centre of 200 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
100.0%
200 of 200 wells
With a plug date
51.5%
103 of 200 wells
Median depth
2,850 ft
187 wells filed one
Completion to plug
17.9 years
median over 25 wells

What the state filed about each well

On the RRC proration schedule
200100.0%
A plug date is filed
10351.5%
BothOn the schedule and plugged. Neither fact cancels the other.
10351.5%
NeitherNo plug date, and not on the schedule.
00.0%

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, 187 of 200 wells. Median 2,850 ft, with the middle half between 1,433 and 3,040 ft; the shallowest is 320 ft and the deepest 3,500 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

40s
50s
60s
70s
80s
90s
00s
10s
20s

Last completion by decade, 105 of 200 wells, Jul 1947 – Oct 2023. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jul 1947 – Oct 2023
105 of 200 wells; 95 filed none
Plug dates filed
Apr 1971 – Dec 2025
103 of 200 wells; 97 filed none

Last completion to plug: a median of 17.9 years across the 25 wells that filed both dates, with the middle half between 6.3 years and 28.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

200 of 211 wells

42-227014733062,682 ftJun 1990Yes
42-22701476206Yes
42-22701478B72,707 ftDec 1974Yes
42-2270148510B2,947 ftApr 1971Yes
42-2270148611B2,616 ftNov 1973Yes
42-22701488123,173 ftApr 1980Yes
42-227015004011,390 ftMar 1989Yes
42-227015032D1,374 ftJun 1974Yes
42-227015044022,712 ftNov 1990Yes
42-227015052032,600 ftJun 1990Yes
42-22702324B 141,558 ftAug 1973Yes
42-227023431B2,620 ftNov 1971Yes
42-22702344B 322,650 ftAug 1975Yes
42-227023622132,600 ftJun 1990Yes
42-227023634102,658 ftJul 1982Yes
42-22702365131,431 ftSep 1988Yes
42-227023672152,659 ftJan 1985Yes
42-227023692161,417 ftAug 1989Yes
42-227023704161,430 ftJun 1991Yes
42-227023712171,408 ftJul 1991Yes
42-227023744181,416 ftJun 1991Yes
42-22702376478W1,413 ftMay 1997Yes
42-227023782211,396 ftJul 1991Yes
42-22702381312,620 ftDec 1974Yes
42-227023854202,691 ftJun 1990Yes
42-22702389273W1,418 ftDec 1991Yes
42-22703215272W1,418 ftJan 1989Yes
42-227035493091,340 ftJun 1991Yes
42-22703561W521,399 ftYes
42-227035624271,409 ftSep 1998Yes
42-22703563E281,406 ftMay 1973Yes
42-227035684351,390 ftJun 1991Yes
42-22703573401,410 ftDec 1988Yes
42-22703575284W1,373 ftMar 1987Yes
42-227035762412,628 ftJun 1990Yes
42-227035782421,376 ftMay 1991Yes
42-22703579492W1,387 ftJun 1991Yes
42-227035802431,920 ftYes
42-227035842451,360 ftApr 1989Yes
42-227035862471,955 ftJul 1982Yes
42-22703587249W1,992 ftFeb 1987Yes
42-22703604307Yes
42-227036054223,021 ftAug 1993Yes
42-22703606423Yes
42-2270360833B1,378 ftSep 1973Yes
42-22703609352,981 ftMay 1989Yes
42-22703610B 361,387 ftOct 1973Yes
42-22703611274W1,391 ftSep 1988Yes
42-22703895275W1,401 ftJan 1998Yes
42-2270401318B1,897 ftAug 1973Yes
42-22704018326W1,377 ftSep 1986Yes
42-22704019495W1,392 ftMar 1987Yes
42-22704021496W1,392 ftApr 1988Yes
42-22704022497W1,390 ftApr 1988Yes
42-22704023336W3,400 ftOct 1988Yes
42-22704028484W1,404 ftApr 1988Yes
42-22704031277CW2,683 ftAug 1987Yes
42-22704035279W1,382 ftDec 1988Yes
42-227042604112,655 ftJun 1990Yes
42-2271026712D1,960 ftNov 1973Yes
42-2271026813DYes
42-22710269481CW2,000 ftMar 1987Yes
42-227102764452,000 ftJun 1988Yes
42-227102774462,007 ftAug 1993Yes
42-227102784472,015 ftNov 2011Yes
42-2271027948 EYes
42-22711019486W1,410 ftJun 2000Yes
42-227300082511,608 ftYes
42-227805034081,420 ftApr 2021Yes
42-2278051124Yes
42-227805242021,900 ftAug 1993Yes
42-22780530219Yes
42-22780532223Yes
42-227805332251,382 ftYes
42-227805342261,376 ftJun 2014Yes
42-22780536238Yes
42-22780540240Yes
42-22780555276CW1,980 ftAug 1987Yes
42-22780561280W1,402 ftMar 1987Yes
42-22780562281W1,385 ftMar 1987Yes
42-22780563282W1,400 ftOct 1988Yes
42-22780564283W1,387 ftOct 1988Yes
42-227805703101,369 ftMay 1991Yes
42-22780571311Yes
42-22780574323W1,404 ftMay 1997Yes
42-22780577351W3,087 ftJul 1978Yes
42-227805804121,438 ftNov 1990Yes
42-227805824141,420 ftOct 2018Yes
42-227805834151,433 ftApr 2021Yes
42-227805874261,380 ftSep 1988Yes
42-227805904421,434 ftAug 2012Yes
42-22780591443Yes
42-22780592444Yes
42-22780603476W1,500 ftJun 1993Yes
42-22780604477W1,431 ftMar 2002Yes
42-227805864252,995 ftOct 2023Yes
42-227308084702,999 ftJul 2023Yes
42-227349872893,100 ftMay 2021Yes
42-227305834583,010 ftSep 2018Yes
42-227014991D3,029 ftJul 2018Yes
42-2273476441043,040 ftJun 2015Yes
42-227305202582,900 ftApr 2015Yes
42-2273495941083,100 ftApr 2015Yes
42-22735119297L3,100 ftJun 2012Yes
42-2273476641063,020 ftMay 2012Yes
42-2273476941023,040 ftFeb 2012Yes
42-227349853443,100 ftJan 2012Yes
42-227349582923,100 ftOct 2011Yes
42-2273498641113,100 ftFeb 2011Yes
42-227349642913,100 ftNov 2009Yes
42-227351292953,100 ftOct 2009Yes
42-227305233163,200 ftAug 2009Feb 2020Yes
42-227305223153,200 ftAug 2009Yes
42-22730429255W3,200 ftAug 2009Yes
42-227309074732,850 ftJul 2009Jul 2015Yes
42-227305474543,200 ftJun 2009Yes
42-227347672853,040 ftApr 2009Apr 2011Yes
42-227308114713,000 ftMar 2009Jul 2015Yes
42-227349843423,100 ftFeb 2009Yes
42-227349903433,100 ftApr 2008Yes
42-22735117294L3,100 ftOct 2007Yes
42-2273512041133,022 ftAug 2007Yes
42-2273476541053,040 ftJan 2001Yes
42-227352533453,100 ftFeb 1998Yes
42-227307014622,970 ftOct 1997Yes
42-22780559278L2,681 ftOct 1997Feb 2009Yes
42-2273523341193,061 ftOct 1997Yes
42-2273512741123,030 ftJun 1997Yes
42-2273512641143,100 ftMay 1997Yes
42-227351214115L3,100 ftMay 1997Yes
42-2273512441163,100 ftMay 1997Yes
42-227351224117L3,100 ftMay 1997Yes
42-2273512541183,100 ftMay 1997Yes
42-22735118296L3,100 ftApr 1997Yes
42-22731639325L2,800 ftMar 1997Yes
42-227349822903,100 ftMay 1996Yes
42-227349833413,100 ftApr 1996Yes
42-227307024633,000 ftApr 1996Yes
42-227307314672,970 ftApr 1996Yes
42-227349923383,100 ftMar 1996Yes
42-227349913403,100 ftMar 1996Yes
42-227349662933,100 ftFeb 1996Yes
42-2273496241093,100 ftFeb 1996Yes
42-2273496541103,100 ftFeb 1996Yes
42-227346653272,900 ftSep 1995Yes
42-227305443173,219 ftSep 1995Yes
42-227306543222,970 ftAug 1995Yes
42-227307294662,970 ftJun 1995Yes
42-227035674333,114 ftJun 1995Yes
42-227347682873,000 ftMar 1994Yes
42-2273477141033,040 ftFeb 1994Dec 2025Yes
42-227035694362,810 ftDec 1992Dec 1994Yes
42-227308044692,972 ftNov 1992Sep 1997Yes
42-227307492702,970 ftDec 1991Yes
42-2273118741002,850 ftMay 1991Yes
42-227309764742,850 ftApr 1991Aug 2019Yes
42-227309994752,850 ftMar 1991Aug 2019Yes
42-227304612543,200 ftMar 1991Aug 2005Yes
42-227305764563,000 ftFeb 1991Yes
42-227014779B3,028 ftDec 1990Jul 2015Yes
42-227305642652,900 ftSep 1989Yes
42-22703577411,432 ftApr 1989Jul 1991Yes
42-227023724171,414 ftApr 1989Sep 2012Yes
42-227309064722,850 ftApr 1986Yes
42-227305793203,200 ftSep 1984Yes
42-227109474502,670 ftSep 1984Apr 2021Yes
42-22704263393,029 ftNov 1983Sep 1993Yes
42-227306554593,250 ftAug 1983Yes
42-227014872053,046 ftMay 1982Nov 1983Yes
42-227306672643,500 ftMay 1980Yes
42-227308094682,965 ftMar 1979Yes
42-227307502712,970 ftMar 1979Yes
42-227109672502,710 ftMar 1979Jan 2020Yes
42-22730545318320 ftMar 1979Yes
42-227305462602,900 ftMar 1979Yes
42-227305814553,500 ftMar 1977Yes
42-227035822442,665 ftNov 1975Sep 1993Yes
42-227014723032,693 ftSep 1975Aug 1993Yes
42-227307042672,970 ftApr 1975Yes
42-227307512692,970 ftApr 1975Yes
42-227307052682,970 ftApr 1975Yes
42-227043262043,154 ftJan 1975Yes
42-227307004612,970 ftJan 1975Yes
42-227307304652,970 ftJan 1975Yes
42-227306532662,960 ftDec 1974Yes
42-227805142342,976 ftOct 1974Yes
42-227306524602,950 ftSep 1974Yes
42-227805482622,900 ftJun 1974Yes
42-227305824573,200 ftMay 1974Yes
42-227305803213,200 ftMar 1974Yes
42-227305773192,940 ftMar 1974Yes
42-227305212592,900 ftJan 1974Yes
42-227305522612,900 ftJan 1974Yes
42-227300572521,622 ftOct 1969Yes
42-227300284521,600 ftJun 1969Jun 1991Yes
42-227109574512,690 ftOct 1968Yes
42-2271092814D2,700 ftAug 1968Jan 1998Yes
42-227201914492,775 ftMay 1968Sep 1993Yes
42-227035852462,005 ftMay 1963Aug 1994Yes
42-227035712391,976 ftJul 1947Sep 1988Yes

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 (236)

Volume × price = value, one row per cycle. The price columns are the same series published on the prices page — nothing here is modelled.

236 months

Aug 20120092.662.91$0
Jul 20120085.133.02$0
Jun 20120079.822.52$0
May 20120091.612.49$0
Apr 201200101.652.00$0
Mar 201200105.052.22$0
Feb 201200101.102.57$0
Jan 20120098.092.73$0
Dec 20110096.873.24$0
Nov 201111,769195.723.31$1,126,532
Oct 201111,370184.983.65$966,226
Sep 201112,047183.623.99$1,007,374
Aug 201111,605183.404.15$967,861
Jul 201111,389194.144.52$1,072,165
Jun 201112,861192.904.64$1,194,792
May 201113,600198.134.40$1,334,572
Apr 201111,4441105.964.33$1,212,611
Mar 201112,778196.364.06$1,231,292
Feb 20118,266185.644.18$707,904
Jan 201113,014186.504.59$1,125,716
Dec 201014,790185.734.35$1,267,951
Nov 201014,490180.843.80$1,171,375
Oct 201012,976178.103.51$1,013,429
Sep 201012,183172.633.98$884,855
Aug 201014,958173.684.42$1,102,110
Jul 201012,981172.554.74$941,776
Jun 201013,301170.364.91$935,863
May 201013,831171.124.24$983,665
Apr 201013,234181.694.12$1,081,090
Mar 201013,132178.394.39$1,029,422
Feb 201010,292173.585.44$757,291
Jan 201011,229174.365.96$834,994
Dec 200912,393171.445.48$885,361
Nov 200912,468174.593.75$929,992
Oct 200913,325172.544.11$966,600
Sep 200913,018165.543.06$853,203
Aug 200913,978167.423.22$942,400
Jul 200914,124161.133.46$863,404
Jun 200913,364166.163.90$884,166
May 200912,428154.743.93$680,313
Apr 200911,603146.773.59$542,676
Mar 200912,674142.144.06$534,086
Feb 200911,505132.814.63$377,484
Jan 200913,546135.865.37$485,765
Dec 200813,667137.105.98$507,052
Nov 200813,668155.496.86$758,444
Oct 200815,095175.246.92$1,135,755
Sep 200814,7181101.767.88$1,497,712
Aug 200815,6531114.228.48$1,787,894
Jul 200816,6571131.0811.39$2,183,411
Jun 200813,1001131.3313.03$1,720,436
May 200814,0191123.1711.57$1,726,732
Apr 200813,0191110.3110.45$1,436,136
Mar 200815,6021101.909.66$1,589,853
Feb 200815,608192.538.77$1,444,217
Jan 200816,264190.388.21$1,469,949
Dec 200716,4351,40088.337.30$1,461,926
Nov 200716,3961,36791.677.29$1,512,989
Oct 200715,7991,40582.856.92$1,318,673
Sep 200715,8291,35775.846.24$1,208,945
Aug 200716,6971,38869.066.39$1,161,961
Jul 200717,7921,39470.906.39$1,270,358
Jun 200717,0561,34762.007.55$1,067,640
May 200716,0231,39358.747.85$952,121
Apr 200715,8321,31959.617.81$954,041
Mar 200716,5932856.927.30$944,678
Feb 200715,2222555.108.22$838,938
Jan 200717,0592850.306.73$858,256
Dec 200617,0772856.656.92$967,606
Nov 200615,6732754.207.62$849,682
Oct 200616,2442954.906.01$891,970
Sep 200618,9451560.085.04$1,138,291
Aug 200618,6791668.717.34$1,283,552
Jul 200617,2462669.376.34$1,196,520
Jun 200617,7492666.286.38$1,176,570
May 200618,1842566.016.42$1,200,486
Apr 200617,4092764.397.36$1,121,164
Mar 200617,0262656.707.08$965,558
Feb 200616,4262557.597.75$946,167
Jan 200618,4992760.598.93$1,121,096
Dec 200518,2192854.9413.42$1,001,327
Nov 200517,3332754.6910.59$948,228
Oct 200519,3532858.3413.80$1,129,440
Sep 200518,0702761.4512.08$1,110,728
Aug 200517,2252861.519.80$1,059,784
Jul 200517,9872855.697.84$1,001,916
Jun 200517,6422752.337.38$923,405
May 200518,9102845.226.65$855,296
Apr 200517,4702749.207.36$859,723
Mar 200516,9882950.377.15$855,893
Feb 200516,2492545.226.31$734,938
Jan 200517,7773143.166.32$767,451
Dec 200417,9323239.866.75$714,986
Nov 200417,2573245.286.33$781,600
Oct 200418,4623249.706.52$917,770
Sep 200417,6253243.245.28$762,274
Aug 200418,6513242.375.55$790,420
Jul 200419,120038.286.08$731,914
Jun 200417,863036.106.43$644,854
May 200419,338037.486.49$724,788
Apr 200418,384034.475.86$633,696
Mar 200419,447034.365.53$668,199
Feb 200417,014032.455.51$552,104
Jan 200418,671032.036.30$598,032
Dec 200318,350030.266.30$555,271
Nov 200318,386028.804.60$529,517
Oct 200318,714028.174.76$527,173
Sep 200318,096026.314.75$476,106
Aug 200319,001029.765.13$565,470
Jul 200320,527029.415.17$603,699
Jun 200319,248028.565.98$549,723
May 200320,536026.595.97$546,052
Apr 200319,633026.675.41$523,612
Mar 200320,772031.146.10$646,840
Feb 200317,864033.487.93$598,087
Jan 200320,421030.315.58$618,961
Dec 200219,835026.914.85$533,760
Nov 200220,421024.664.14$503,582
Oct 200221,795026.464.23$576,696
Sep 200220,892027.443.64$573,276
Aug 200221,535025.963.16$559,049
Jul 200222,000024.583.06$540,760
Jun 200220,917023.733.34$496,360
May 200221,620024.663.58$533,149
Apr 200221,892023.653.51$517,746
Mar 200221,818022.003.10$479,996
Feb 200220,604018.222.38$375,405
Jan 200223,878017.172.38$409,985
Dec 200124,100016.932.36$408,013
Nov 200120,713018.072.41$374,284
Oct 200123,709019.782.53$468,964
Sep 200124,144024.262.25$585,733
Aug 200125,519024.873.05$634,658
Jul 200124,154023.933.20$578,005
Jun 200123,747024.563.82$583,226
May 200125,638025.524.31$654,282
Apr 200124,375024.685.34$601,575
Mar 200124,893024.545.38$610,874
Feb 200122,691027.755.77$629,675
Jan 200126,370027.478.40$724,384
Dec 200025,385026.889.12$682,349
Nov 200025,009032.215.66$805,540
Oct 200026,205031.235.15$818,382
Sep 200025,358031.875.19$808,159
Aug 200026,771029.644.54$793,492
Jul 200029,113028.534.09$830,594
Jun 200027,965029.304.40$819,375
May 200028,553027.263.68$778,355
Apr 200027,857024.513.12$682,775
Mar 200030,060028.422.86$854,305
Feb 200028,218027.622.73$779,381
Jan 200028,779025.272.48$727,245
Dec 199927,745024.282.42$673,649
Nov 199927,172023.192.43$630,119
Oct 199928,4531,40420.982.80$600,880
Sep 199929,0241,34821.752.62$634,802
Aug 199929,985019.262.88$577,511
Jul 199931,195017.892.37$558,079
Jun 199930,034015.942.36$478,742
May 199930,159015.792.32$476,211
Apr 199928,709015.102.21$433,506
Mar 199929,186012.471.84$363,949
Feb 199928,02909.981.82$279,729
Jan 199932,112010.381.90$333,323
Dec 199830,88809.201.77$284,170
Nov 199832,808010.892.19$357,279
Oct 199835,072012.421.97$435,594
Sep 199833,254012.592.08$418,668
Aug 199834,688011.301.91$391,974
Jul 199834,220011.742.24$401,743
Jun 199835,448011.242.24$398,436
May 199836,042012.622.21$454,850
Apr 199834,976013.042.51$456,087
Mar 199839,351012.802.31$503,693
Feb 199835,206013.952.30$491,124
Jan 199841,284014.702.15$606,875
Dec 199742,240016.322.41$689,357
Nov 199741,992018.193.09$763,834
Oct 199743,592019.253.15$839,146
Sep 199743,116017.742.95$764,878
Aug 199746,011017.862.55$821,756
Jul 199745,494017.582.25$799,785
Jun 199742,243017.242.26$728,269
May 199739,101018.972.31$741,746
Apr 199737,179017.882.08$664,761
Mar 199736,638018.951.94$694,290
Feb 199734,583020.492.21$708,606
Jan 199738,221023.483.54$897,429
Dec 199639,863023.32$929,605
Nov 199638,815021.97$852,766
Oct 199641,072023.31$957,388
Sep 199643,024022.22$955,993
Aug 199642,188020.26$854,729
Jul 199643,486019.55$850,151
Jun 199640,300018.73$754,819
May 199638,461019.43$747,297
Apr 199633,578021.51$722,263
Mar 199635,181019.38$681,808
Feb 199629,598016.98$502,574
Jan 199632,586017.07$556,243
Dec 199531,441017.19$540,471
Nov 199531,715016.00$507,440
Oct 199534,144015.43$526,842
Sep 199530,648016.18$495,885
Aug 199531,696015.92$504,600
Jul 199531,132015.24$474,452
Jun 199530,300016.41$497,223
May 199530,683017.56$538,793
Apr 199531,758017.73$563,069
Mar 199532,979016.44$542,175
Feb 199530,337016.58$502,987
Jan 199534,233015.92$544,989
Dec 199434,083015.03$512,267
Nov 199433,202015.90$527,912
Oct 199434,679015.58$540,299
Sep 199432,6694315.29$499,509
Aug 199433,9724216.13$547,968
Jul 199432,9814217.56$579,146
Jun 199429,6874217.09$507,351
May 199429,7994315.88$473,208
Apr 199427,8534314.14$393,841
Mar 199427,3934312.46$341,317
Feb 199422,9894312.50$287,363
Jan 199425,7194312.66$325,603
Dec 199324,7804312.33$305,537
Nov 199322,5944314.49$327,387
Oct 199326,1634315.85$414,684
Sep 199324,4314315.03$367,198
Aug 199325,6604315.66$401,836
Jul 199324,9544315.46$385,789
Jun 199324,0884316.79$404,438
May 199324,9094317.68$440,391
Apr 199324,4634318.05$441,557
Mar 199326,3904218.14$478,715
Feb 199319,5164217.90$349,336
Jan 199323,0194216.93$389,712

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.

Nov 2011 — as filed, then multipliedworked
Oil               11,769 bbl  × $ 95.72 = $1,126,529
Casinghead gas         1 Mcf  × $  3.31 =         $3

────────────────────────────────────────────────────
Month total                               $1,126,532

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/2827 is the state's own key, not one this site invented.