SHANNON ESTATE -B-

Operated by CLARK OIL CO. (P-5 157689) in the SHANNON (SAN ANDRES) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 1277District 7CField 82663568Hydrogen sulphide fieldNGPA filingOilCasinghead gasSaveExport
Value, all time
$56.3 M
Jan 1993 – May 2026
Value, last 12 filed months
$1.4 M
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 92 leases and 473 wells, and the rule below applies to all of them.

Discovered
1943-03-01
as the register files it
Field class
Oil and gas
the register's own label
Between wells
933 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 20 acres. The field rule took effect on 2011-05-24.

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: SEE COMM. LETTER 1/22/65 FOR TESTING

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
NGPA1none

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
OilDisposition946,543 bbl$56,288,282
Casinghead gasProduction22 Mcf$6
Total$56,288,288

21 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 (60)

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 30.8744, -101.6599. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.4 miles. 1 well has no surveyed location and is left out of it.

30.87515, -101.66214 · centre of 59 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
33.3%
20 of 60 wells
With a plug date
20.0%
12 of 60 wells
Median depth
2,300 ft
52 wells filed one
Completion to plug
17.4 years
median over 7 wells

What the state filed about each well

On the RRC proration schedule
2033.3%
A plug date is filed
1220.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1220.0%
NeitherNo plug date, and not on the schedule.
4066.7%

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, 52 of 60 wells. Median 2,300 ft, with the middle half between 2,250 and 2,350 ft; the shallowest is 2,060 ft and the deepest 3,705 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, 44 of 60 wells, Sep 1944 – Aug 2025. 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 1944 – Aug 2025
44 of 60 wells; 16 filed none
Plug dates filed
Aug 1975 – Dec 2024
12 of 60 wells; 48 filed none

Last completion to plug: a median of 17.4 years across the 7 wells that filed both dates, with the middle half between 12.6 years and 19.7 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.

60 wells

42-1050299562,210 ftYes
42-1050299982,215 ftYes
42-1050300192,424 ftYes
42-10503014172,470 ftAug 1975Yes
42-10503024282,330 ftNov 1995Yes
42-10503027312,310 ftAug 1975Yes
42-10503030342,280 ftOct 2002Yes
42-105029977
42-1050300310
42-1050301620
42-1050302024
42-1050302125
42-1050302226
42-1050302327
42-10503029332,230 ft
42-1050355819
42-10503028322,272 ftAug 2025Yes
42-10534798592,300 ftOct 2012
42-10503011142,068 ftOct 2012Yes
42-1050299142,262 ftSep 2012
42-10503009132,180 ftAug 2012
42-10503005112,260 ftJul 2012
42-10503026302,330 ftJul 2012Aug 1975Yes
42-10534164562,300 ftMar 2007
42-1053446458W2,312 ftJan 2006Dec 2024Yes
42-1050298312,791 ftJan 1998
42-1050299352,165 ftNov 1997Apr 2015Yes
42-10503013162,533 ftNov 1995Yes
42-1050312015W2,525 ftNov 1995
42-105369283A2,500 ftAug 1995Jan 2016Yes
42-10532409412,325 ftMar 1995Yes
42-1053673736A2,736 ftMar 1995
42-10534163572,300 ftMay 1991Jul 1997Yes
42-10503019232,280 ftOct 1985Feb 2001Yes
42-10533926532,300 ftApr 1985
42-10503017212,250 ftApr 1985
42-10503025292,280 ftApr 1985Jan 1995Yes
42-10533073472,250 ftApr 1985
42-10503007122,060 ftOct 1984
42-10534166542,300 ftFeb 1983
42-10534165552,310 ftFeb 1983
42-10533955502,400 ftJun 1982
42-10533927522,300 ftJun 1982
42-10532279402,350 ftJun 1982
42-10533928512,350 ftMay 1982
42-10533925492,300 ftMay 1982
42-10580229352,200 ftJan 1982
42-10533072482,300 ftApr 1981
42-10533074462,233 ftApr 1981
42-10531773372,502 ftSep 1980
42-10503018222,240 ftJun 1980
42-10532410422,400 ftOct 1979
42-10532411442,325 ftSep 1979
42-10532412432,400 ftSep 1979
42-10532280392,300 ftMay 1979
42-1058022833W2,230 ftApr 1979Yes
42-10532122382,315 ftDec 1978
42-1050349836W2,317 ftFeb 1958Jun 1991Yes
42-10503015183,705 ftOct 1956
42-1050298622,206 ftSep 1944

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 20261,6210106.413.05$172,491
Apr 2026942098.932.87$93,192
Mar 20261,419089.753.15$127,355
Feb 20261,832063.503.75$116,332
Jan 20261,452059.138.00$85,857
Dec 20251,159056.664.41$65,669
Nov 20252,024058.593.93$118,586
Oct 20251,558059.383.30$92,514
Sep 20251,548062.743.08$97,122
Aug 20251,865063.933.01$119,229
Jul 20252,496066.743.32$166,583
Jun 20252,171066.483.13$144,328
May 20252,227060.553.23$134,845
Apr 20252,136062.363.54$133,201
Mar 20252,043067.704.27$138,311
Feb 20252,044070.884.34$144,879
Jan 20252,364074.324.28$175,692
Dec 20242,299068.993.12$158,608
Nov 20242,186069.052.20$150,943
Oct 20241,993071.372.28$142,240
Sep 20241,734069.612.36$120,704
Aug 20242,040075.632.06$154,285
Jul 20242,137079.932.15$170,810
Jun 20242,214078.082.63$172,869
May 20242,320078.812.20$182,839
Apr 20242,065084.451.66$174,389
Mar 20241,942080.301.55$155,943
Feb 20241,362076.091.78$103,635
Jan 20241,782073.023.30$130,122
Dec 20231,602071.262.61$114,159
Nov 20231,206077.892.81$93,935
Oct 20231,407085.443.09$120,214
Sep 20231,260089.042.74$112,190
Aug 20231,549080.522.67$124,725
Jul 20231,768074.852.64$132,335
Jun 20231,276068.962.26$87,993
May 20231,750070.622.23$123,585
Apr 20231,708078.122.24$133,429
Mar 20232,206072.852.39$160,707
Feb 20231,739075.112.47$130,616
Jan 20231,375076.533.39$105,229
Dec 20221,879076.415.73$143,574
Nov 20221,688085.005.65$143,480
Oct 20222,073087.185.86$180,724
Sep 20222,202084.888.16$186,906
Aug 20222,054094.529.13$194,144
Jul 20222,1660101.587.54$220,022
Jun 20222,1680115.097.98$249,515
May 20221,6740109.378.43$183,085
Apr 20221,6720104.226.84$174,256
Mar 20222,3380108.885.08$254,561
Feb 20221,336091.054.86$121,643
Jan 2022965081.844.54$78,976
Dec 20211,326071.323.90$94,570
Nov 20211,741077.435.24$134,806
Oct 20211,978079.795.71$157,825
Sep 20212,231069.865.35$155,858
Aug 20212,261066.024.22$149,271
Jul 20211,812070.783.98$128,253
Jun 20211,473069.493.38$102,359
May 20211,889063.483.02$119,914
Apr 20211,140060.362.76$68,810
Mar 20212,343061.302.72$143,626
Feb 2021619057.805.55$35,778
Jan 20212,109050.412.81$106,315
Dec 20201,721044.642.68$76,825
Nov 20202,011038.772.71$77,966
Oct 20201,680036.972.48$62,110
Sep 20201,565037.091.99$58,046
Aug 20201,639039.982.39$65,527
Jul 20201,496038.371.83$57,402
Jun 20201,360034.901.69$47,464
May 20200016.921.81$0
Apr 20201,359014.751.80$20,045
Mar 20201,683030.341.86$51,062
Feb 20201,688049.881.98$84,197
Jan 20201,719057.252.09$98,413
Dec 20191,714059.012.30$101,143
Nov 20191,199055.302.75$66,305
Oct 20191,368053.472.42$73,147
Sep 20191,874055.052.66$103,164
Aug 20192,045053.112.30$108,610
Jul 20192,892056.272.46$162,733
Jun 20192,920052.782.49$154,118
May 20192,401058.482.74$140,410
Apr 20192,204062.632.75$138,037
Mar 20192,422056.803.06$137,570
Feb 20192,408050.852.79$122,447
Jan 20192,012046.033.23$92,612
Dec 20181,373046.594.19$63,968
Nov 20181,873052.934.24$99,138
Oct 20181,537061.443.40$94,433
Sep 20181,332059.543.11$79,307
Aug 20182,376059.403.07$141,134
Jul 20181,697065.142.93$110,543
Jun 20182,234060.183.08$134,442
May 20182,553065.382.90$166,915
Apr 20182,515063.842.90$160,558
Mar 20182,409061.222.79$147,479
Feb 20182,300061.782.77$142,094
Jan 20182,300062.874.01$144,601
Dec 20171,501057.272.92$85,962
Nov 20171,853055.423.12$102,693
Oct 20172,020049.292.98$99,566
Sep 20171,691047.523.09$80,356
Aug 20171,805045.373.00$81,893
Jul 20172,190043.873.09$96,075
Jun 20171,717042.493.09$72,955
May 20172,540045.373.26$115,240
Apr 20172,556047.933.21$122,509
Mar 20172,721046.772.98$127,261
Feb 20172,749050.452.95$138,687
Jan 20171,826049.413.42$90,223
Dec 20162,367048.763.72$115,415
Nov 20162,347042.492.64$99,724
Oct 20161,794046.193.09$82,865
Sep 20161,965041.553.10$81,646
Aug 20162,125041.442.92$88,060
Jul 20162,475041.622.92$103,010
Jun 20162,945045.352.69$133,556
May 20163,002042.521.99$127,645
Apr 20163,190036.561.99$116,626
Mar 20162,817033.011.79$92,989
Feb 20162,860026.472.06$75,704
Jan 20163,398027.352.36$92,935
Dec 20153,008032.362.00$97,339
Nov 20153,169038.792.17$122,926
Oct 20153,481043.552.43$151,598
Sep 20153,166042.992.76$136,106
Aug 20153,718040.162.87$149,315
Jul 20153,140048.152.95$151,191
Jun 20153,021056.152.88$169,629
May 20153,742055.212.96$206,596
Apr 20154,072049.822.71$202,867
Mar 20154,628042.892.93$198,495
Feb 20152,531044.662.98$113,034
Jan 20153,703043.433.10$160,821
Dec 20143,180054.693.59$173,914
Nov 20143,720070.464.25$262,111
Oct 20143,881078.303.90$303,882
Sep 20143,509086.164.05$302,335
Aug 20144,733089.394.04$423,083
Jul 20144,018096.564.18$387,978
Jun 20142,740098.164.74$268,958
May 20144,362094.734.73$413,212
Apr 20144,247095.944.81$407,457
Mar 20144,289095.895.06$411,272
Feb 20144,103097.406.19$399,632
Jan 20144,606090.404.86$416,382
Dec 20134,197091.824.35$385,369
Nov 20133,881088.853.74$344,827
Oct 20135,485097.423.78$534,349
Sep 20133,8340104.113.72$399,158
Aug 20134,1930104.253.52$437,120
Jul 20134,8670102.523.72$498,965
Jun 20135,075094.403.93$479,080
May 20134,515094.834.15$428,157
Apr 20135,052093.964.28$474,686
Mar 20134,346093.623.91$406,873
Feb 20134,630091.233.42$422,395
Jan 20135,555091.603.42$508,838
Dec 20125,098086.773.42$442,353
Nov 20126,185086.953.62$537,786
Oct 20125,552089.383.40$496,238
Sep 20124,874094.672.92$461,422
Aug 20125,672092.662.91$525,568
Jul 20125,668085.133.02$482,517
Jun 20124,342079.822.52$346,578
May 20126,298091.612.49$576,960
Apr 20125,3380101.652.00$542,608
Mar 20123,1970105.052.22$335,845
Feb 20123,8390101.102.57$388,123
Jan 20123,516098.092.73$344,884
Dec 20112,854096.873.24$276,467
Nov 20113,698095.723.31$353,973
Oct 20114,174084.983.65$354,707
Sep 20113,725083.623.99$311,485
Aug 20112,496083.404.15$208,166
Jul 20113,447094.144.52$324,501
Jun 20113,009092.904.64$279,536
May 20113,617098.134.40$354,936
Apr 20113,7020105.964.33$392,264
Mar 20113,784096.364.06$364,626
Feb 20112,921085.644.18$250,154
Jan 20111,934086.504.59$167,291
Dec 20102,531085.734.35$216,983
Nov 20102,708080.843.80$218,915
Oct 20102,329078.103.51$181,895
Sep 20102,161072.633.98$156,953
Aug 20102,488073.684.42$183,316
Jul 20103,595072.554.74$260,817
Jun 20104,316070.364.91$303,674
May 20102,134071.124.24$151,770
Apr 20101,879081.694.12$153,496
Mar 20101,970078.394.39$154,428
Feb 20103,134073.585.44$230,600
Jan 20104,216074.365.96$313,502
Dec 20093,412071.445.48$243,753
Nov 20094,255074.593.75$317,380
Oct 20093,309072.544.11$240,035
Sep 20093,263065.543.06$213,857
Aug 20091,166067.423.22$78,612
Jul 20092,193061.133.46$134,058
Jun 20093,299066.163.90$218,262
May 20092,578054.743.93$141,120
Apr 20092,995046.773.59$140,076
Mar 20093,123042.144.06$131,603
Feb 20092,948032.814.63$96,724
Jan 20093,914035.865.37$140,356
Dec 20083,381037.105.98$125,435
Nov 20083,797055.496.86$210,696
Oct 20083,565075.246.92$268,231
Sep 20083,5520101.767.88$361,452
Aug 20083,8810114.228.48$443,288
Jul 20083,8450131.0811.39$504,003
Jun 20083,7930131.3313.03$498,135
May 20084,1970123.1711.57$516,944
Apr 20084,2810110.3110.45$472,237
Mar 20084,1580101.909.66$423,700
Feb 20083,250092.538.77$300,723
Jan 20082,964090.388.21$267,886
Dec 20073,382088.337.30$298,732
Nov 20072,924091.677.29$268,043
Oct 20072,809082.856.92$232,726
Sep 20073,128075.846.24$237,228
Aug 20073,358069.066.39$231,903
Jul 20072,816070.906.39$199,654
Jun 20071,455062.007.55$90,210
May 20073,146058.747.85$184,796
Apr 20073,127059.617.81$186,400
Mar 20072,817056.927.30$160,344
Feb 20072,322055.108.22$127,942
Jan 20073,642050.306.73$183,193
Dec 20063,138056.656.92$177,768
Nov 20062,963054.207.62$160,595
Oct 20062,617054.906.01$143,673
Sep 20063,772060.085.04$226,622
Aug 20062,072068.717.34$142,367
Jul 20062,193069.376.34$152,128
Jun 20062,460066.286.38$163,049
May 20062,979066.016.42$196,644
Apr 20062,789064.397.36$179,584
Mar 20063,837056.707.08$217,558
Feb 20062,652057.597.75$152,729
Jan 20063,448060.598.93$208,914
Dec 20053,156054.9413.42$173,391
Nov 20053,159054.6910.59$172,766
Oct 20053,286058.3413.80$191,705
Sep 20053,289061.4512.08$202,109
Aug 20054,606061.519.80$283,315
Jul 20053,385055.697.84$188,511
Jun 20054,369052.337.38$228,630
May 20053,901045.226.65$176,403
Apr 20053,616049.207.36$177,907
Mar 20054,122050.377.15$207,625
Feb 20052,687045.226.31$121,506
Jan 20052,905043.166.32$125,380
Dec 20043,024039.866.75$120,537
Nov 20043,543045.286.33$160,427
Oct 20042,670049.706.52$132,699
Sep 20042,211043.245.28$95,604
Aug 20042,393042.375.55$101,391
Jul 20042,385038.286.08$91,298
Jun 20042,544036.106.43$91,838
May 20042,576037.486.49$96,548
Apr 20042,215034.475.86$76,351
Mar 20042,375034.365.53$81,605
Feb 20042,016032.455.51$65,419
Jan 20041,890032.036.30$60,537
Dec 20031,732030.266.30$52,410
Nov 20031,929028.804.60$55,555
Oct 20031,921028.174.76$54,115
Sep 20031,967026.314.75$51,752
Aug 20031,795029.765.13$53,419
Jul 20031,750029.415.17$51,468
Jun 20031,407028.565.98$40,184
May 20031,969026.595.97$52,356
Apr 20032,128026.675.41$56,754
Mar 20031,431031.146.10$44,561
Feb 20031,398033.487.93$46,805
Jan 2003701130.315.58$21,253
Dec 20021,181026.914.85$31,781
Nov 20021,766024.664.14$43,550
Oct 2002915026.464.23$24,211
Sep 20021,633027.443.64$44,810
Aug 20021,790025.963.16$46,468
Jul 20021,645024.583.06$40,434
Jun 20021,458023.733.34$34,598
May 20021,834024.663.58$45,226
Apr 20021,628023.653.51$38,502
Mar 20022,164022.003.10$47,608
Feb 20021,418018.222.38$25,836
Jan 20021,958017.172.38$33,619
Dec 20011,942016.932.36$32,878
Nov 20011,998018.072.41$36,104
Oct 20011,648019.782.53$32,597
Sep 20011,087024.262.25$26,371
Aug 20011,615024.873.05$40,165
Jul 20011,956023.933.20$46,807
Jun 20011,609024.563.82$39,517
May 20011,941025.524.31$49,534
Apr 20011,259024.685.34$31,072
Mar 2001891024.545.38$21,865
Feb 2001564027.755.77$15,651
Jan 2001382027.478.40$10,494
Dec 2000365026.889.12$9,811
Nov 2000359032.215.66$11,563
Oct 2000547031.235.15$17,083
Sep 2000540031.875.19$17,210
Aug 2000532029.644.54$15,768
Jul 2000369028.534.09$10,528
Jun 2000360029.304.40$10,548
May 2000722027.263.68$19,682
Apr 2000546024.513.12$13,382
Mar 2000550028.422.86$15,631
Feb 2000554027.622.73$15,301
Jan 2000541025.272.48$13,671
Dec 1999578024.282.42$14,034
Nov 1999555023.192.43$12,870
Oct 1999371020.982.80$7,784
Sep 1999546021.752.62$11,876
Aug 1999722019.262.88$13,906
Jul 1999360017.892.37$6,440
Jun 1999359015.942.36$5,722
May 1999571015.792.32$9,016
Apr 1999541015.102.21$8,169
Mar 1999721012.471.84$8,991
Feb 199955509.981.82$5,539
Jan 1999725010.381.90$7,526
Dec 199893609.201.77$8,611
Nov 1998373010.892.19$4,062
Oct 19981,104012.421.97$13,712
Sep 19981,302012.592.08$16,392
Aug 19981,115011.301.91$12,600
Jul 19981,491011.742.24$17,504
Jun 19982,214011.242.24$24,885
May 19981,466012.622.21$18,501
Apr 19982,024013.042.51$26,393
Mar 19982,355012.802.31$30,144
Feb 19981,776013.952.30$24,775
Jan 19981,412014.702.15$20,756
Dec 19971,650016.322.41$26,928
Nov 19971,614018.193.09$29,359
Oct 19972,660019.253.15$51,205
Sep 19972,138017.742.95$37,928
Aug 19971,237017.862.55$22,093
Jul 19971,952017.582.25$34,316
Jun 19971,738017.242.26$29,963
May 19972,502018.972.31$47,463
Apr 19972,430017.882.08$43,448
Mar 19971,960018.951.94$37,142
Feb 19971,974020.492.21$40,447
Jan 19971,620023.483.54$38,038
Dec 1996539023.32$12,569
Nov 1996538021.97$11,820
Oct 1996707023.31$16,480
Sep 19961,229022.22$27,308
Aug 19961,594020.26$32,294
Jul 19961,925019.55$37,634
Jun 19962,305018.73$43,173
May 19962,493019.43$48,439
Apr 19961,583021.51$34,050
Mar 19962,308019.38$44,729
Feb 19962,685016.98$45,591
Jan 19962,277017.07$38,868
Dec 19953,072017.19$52,808
Nov 19951,836016.00$29,376
Oct 19952,766015.43$42,679
Sep 19952,160016.18$34,949
Aug 19952,639015.92$42,013
Jul 1995917015.24$13,975
Jun 19951,964016.41$32,229
May 19952,568017.56$45,094
Apr 19951,880017.73$33,332
Mar 19952,292016.44$37,680
Feb 19951,922016.58$31,867
Jan 19952,325015.92$37,014
Dec 19942,683015.03$40,325
Nov 19942,283015.90$36,300
Oct 19942,497015.58$38,903
Sep 19942,110115.29$32,262
Aug 19942,047116.13$33,018
Jul 19942,485117.56$43,637
Jun 19942,019117.09$34,505
May 19941,930115.88$30,648
Apr 19941,866114.14$26,385
Mar 19942,047112.46$25,506
Feb 19942,237112.50$27,963
Jan 19942,033112.66$25,738
Dec 19932,157112.33$26,596
Nov 19932,181114.49$31,603
Oct 19931,991115.85$31,557
Sep 19931,937115.03$29,113
Aug 19932,068115.66$32,385
Jul 19931,603115.46$24,782
Jun 19931,691116.79$28,392
May 19931,758117.68$31,081
Apr 19931,819118.05$32,833
Mar 19931,752118.14$31,781
Feb 19931,664117.90$29,786
Jan 19931,742116.93$29,492

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                1,621 bbl  × $106.41 =   $172,491
Casinghead gas         0 Mcf  × $  3.05 =         $0

────────────────────────────────────────────────────
Month total                                 $172,491

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. 7C/O/1277 is the state's own key, not one this site invented.