COLBERT, E. K.

Operated by AGHORN OPERATING, INC. (P-5 8716) in the COWDEN, SOUTH field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 905District 08Field 21292001Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$9.5 M
Jan 1993 – May 2026
Value, last 12 filed months
$130 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 102 leases and 1,335 wells, and the rule below applies to all of them.

Discovered
1932-11-23
as the register files it
Field class
Oil and gas
the register's own label
Between wells
467 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres. The field rule took effect on 2005-09-27.

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: MAXIMUM 160 ACRES PLUS 16 ACRES TOLERANCE

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
OilDisposition226,308 bbl$9,326,013
Casinghead gasProduction60,370 Mcf$133,622
Total$9,459,635

32,998 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 (12)

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 31.7879, -102.3868. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.5 miles.

31.78743, -102.38698 · 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
25.0%
3 of 12 wells
With a plug date
25.0%
3 of 12 wells
Median depth
4,732 ft
9 wells filed one
Completion to plug
26.7 years
median over 3 wells

What the state filed about each well

On the RRC proration schedule
325.0%
A plug date is filed
325.0%
BothOn the schedule and plugged. Neither fact cancels the other.
325.0%
NeitherNo plug date, and not on the schedule.
975.0%

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

Total depth in feet, 9 of 12 wells. Median 4,732 ft, with the middle half between 4,692 and 4,752 ft; the shallowest is 4,656 ft and the deepest 6,297 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, 9 of 12 wells, Mar 1950 – Mar 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
Mar 1950 – Mar 2023
9 of 12 wells; 3 filed none
Plug dates filed
Nov 1989 – May 2012
3 of 12 wells; 9 filed none

Last completion to plug: a median of 26.7 years across the 3 wells that filed both dates, with the middle half between 24.6 years and 30.7 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

12 wells

42-135078222
42-135078233
42-135078264 A
42-135213016W4,752 ftMar 2023
42-1350782114,656 ftOct 2021
42-13536089124,814 ftApr 1989
42-13535832104,692 ftJun 1988
42-13535827114,732 ftApr 1988
42-135321719W4,730 ftOct 1977May 2012Yes
42-135201077W4,739 ftJun 1967Feb 1994Yes
42-135201088W6,297 ftJun 1967Nov 1989Yes
42-1350782454,660 ftMar 1950

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 202600106.413.05$0
Apr 2026163098.932.87$16,126
Mar 2026345089.753.15$30,964
Feb 2026168063.503.75$10,668
Jan 2026169059.138.00$9,993
Dec 2025166056.664.41$9,406
Nov 2025173058.593.93$10,136
Oct 2025170059.383.30$10,095
Sep 2025164062.743.08$10,289
Aug 2025169063.933.01$10,804
Jul 20250066.743.32$0
Jun 2025172066.483.13$11,435
May 2025341060.553.23$20,648
Apr 2025345062.363.54$21,514
Mar 2025131067.704.27$8,869
Feb 2025346070.884.34$24,524
Jan 2025172074.324.28$12,783
Dec 2024343068.993.12$23,664
Nov 2024358069.052.20$24,720
Oct 2024164071.372.28$11,705
Sep 2024342069.612.36$23,807
Aug 2024172075.632.06$13,008
Jul 2024170079.932.15$13,588
Jun 2024171078.082.63$13,352
May 2024342078.812.20$26,953
Apr 2024343084.451.66$28,966
Mar 2024516080.301.55$41,435
Feb 2024174076.091.78$13,240
Jan 2024334073.023.30$24,389
Dec 2023354071.262.61$25,226
Nov 2023161077.892.81$12,540
Oct 2023178085.443.09$15,208
Sep 2023343089.042.74$30,541
Aug 2023356080.522.67$28,665
Jul 20230074.852.64$0
Jun 2023498068.962.26$34,342
May 2023172070.622.23$12,147
Apr 2023538078.122.24$42,029
Mar 2023329072.852.39$23,968
Feb 2023171075.112.47$12,844
Jan 2023350076.533.39$26,786
Dec 2022342076.415.73$26,132
Nov 2022524085.005.65$44,540
Oct 2022174087.185.86$15,169
Sep 2022349084.888.16$29,623
Aug 2022521094.529.13$49,245
Jul 20223460101.587.54$35,147
Jun 20221710115.097.98$19,680
May 20223440109.378.43$37,623
Apr 20221750104.226.84$18,239
Mar 20221680108.885.08$18,292
Feb 2022345091.054.86$31,412
Jan 2022519081.844.54$42,475
Dec 2021348071.323.90$24,819
Nov 2021349077.435.24$27,023
Oct 2021347079.795.71$27,687
Sep 2021173069.865.35$12,086
Aug 2021174066.024.22$11,487
Jul 20210070.783.98$0
Jun 2021176069.493.38$12,230
May 20210063.483.02$0
Apr 2021172060.362.76$10,382
Mar 2021346061.302.72$21,210
Feb 2021176057.805.55$10,173
Jan 2021350050.412.81$17,644
Dec 2020530044.642.68$23,659
Nov 2020174038.772.71$6,746
Oct 2020173036.972.48$6,396
Sep 2020173037.091.99$6,417
Aug 20200039.982.39$0
Jul 2020346038.371.83$13,276
Jun 2020173034.901.69$6,038
May 2020351016.921.81$5,939
Apr 20200014.751.80$0
Mar 2020175030.341.86$5,310
Feb 20200049.881.98$0
Jan 2020701057.252.09$40,132
Dec 2019348059.012.30$20,535
Nov 2019349055.302.75$19,300
Oct 2019346053.472.42$18,501
Sep 2019351055.052.66$19,323
Aug 2019703053.112.30$37,336
Jul 2019349056.272.46$19,638
Jun 2019347052.782.49$18,315
May 2019693058.482.74$40,527
Apr 2019345062.632.75$21,607
Mar 2019349056.803.06$19,823
Feb 2019343050.852.79$17,442
Jan 2019524046.033.23$24,120
Dec 2018349046.594.19$16,260
Nov 2018542052.934.24$28,688
Oct 2018347061.443.40$21,320
Sep 2018538059.543.11$32,033
Aug 2018348059.403.07$20,671
Jul 2018175065.142.93$11,400
Jun 2018485060.183.08$29,187
May 2018157065.382.90$10,265
Apr 2018170063.842.90$10,853
Mar 2018171061.222.79$10,469
Feb 2018170061.782.77$10,503
Jan 20180062.874.01$0
Dec 2017176057.272.92$10,080
Nov 2017171055.423.12$9,477
Oct 2017172049.292.98$8,478
Sep 2017176047.523.09$8,364
Aug 2017174045.373.00$7,894
Jul 2017348043.873.09$15,267
Jun 20170042.493.09$0
May 2017177045.373.26$8,030
Apr 2017170047.933.21$8,148
Mar 2017346046.772.98$16,182
Feb 2017174050.452.95$8,778
Jan 2017161049.413.42$7,955
Dec 2016343048.763.72$16,725
Nov 2016520042.492.64$22,095
Oct 2016172046.193.09$7,945
Sep 2016350041.553.10$14,543
Aug 2016344041.442.92$14,255
Jul 2016173041.622.92$7,200
Jun 2016341045.352.69$15,464
May 2016344042.521.99$14,627
Apr 2016346036.561.99$12,650
Mar 2016347033.011.79$11,454
Feb 2016174026.472.06$4,606
Jan 2016518027.352.36$14,167
Dec 2015523032.362.00$16,924
Nov 2015347038.792.17$13,460
Oct 2015345043.552.43$15,025
Sep 2015175042.992.76$7,523
Aug 2015348040.162.87$13,976
Jul 2015342048.152.95$16,467
Jun 2015513056.152.88$28,805
May 2015350055.212.96$19,324
Apr 2015173049.822.71$8,619
Mar 2015540042.892.93$23,161
Feb 2015182044.662.98$8,128
Jan 2015350043.433.10$15,201
Dec 2014361054.693.59$19,743
Nov 2014181070.464.25$12,753
Oct 2014182078.303.90$14,251
Sep 2014355086.164.05$30,587
Aug 2014360089.394.04$32,180
Jul 2014348096.564.18$33,603
Jun 2014185098.164.74$18,160
May 2014175094.734.73$16,578
Apr 2014346095.944.81$33,195
Mar 2014534095.895.06$51,205
Feb 2014178097.406.19$17,337
Jan 2014360090.404.86$32,544
Dec 2013356091.824.35$32,688
Nov 2013179088.853.74$15,904
Oct 2013533097.423.78$51,925
Sep 20133600104.113.72$37,480
Aug 20133550104.253.52$37,009
Jul 20136950102.523.72$71,251
Jun 2013527094.403.93$49,749
May 2013531094.834.15$50,355
Apr 2013360093.964.28$33,826
Mar 2013528093.623.91$49,431
Feb 2013352591.233.42$32,130
Jan 2013356091.603.42$32,610
Dec 2012351086.773.42$30,456
Nov 2012353086.953.62$30,693
Oct 2012357089.383.40$31,909
Sep 2012535094.672.92$50,648
Aug 2012521092.662.91$48,276
Jul 2012528085.133.02$44,949
Jun 2012515179.822.52$41,110
May 2012527091.612.49$48,278
Apr 20125360101.652.00$54,484
Mar 20123580105.052.22$37,608
Feb 20125310101.102.57$53,684
Jan 2012354098.092.73$34,724
Dec 2011174096.873.24$16,855
Nov 2011523095.723.31$50,062
Oct 20111734184.983.65$14,851
Sep 2011347083.623.99$29,016
Aug 2011521083.404.15$43,451
Jul 2011352494.144.52$33,155
Jun 20115273892.904.64$49,135
May 2011356098.134.40$34,934
Apr 20115280105.964.33$55,947
Mar 2011534096.364.06$51,456
Feb 2011173085.644.18$14,816
Jan 2011523086.504.59$45,240
Dec 2010530085.734.35$45,437
Nov 2010346080.843.80$27,971
Oct 2010527078.103.51$41,159
Sep 2010526072.633.98$38,203
Aug 2010527073.684.42$38,829
Jul 2010354272.554.74$25,692
Jun 2010695270.364.91$48,910
May 20103537971.124.24$25,440
Apr 20104993881.694.12$40,920
Mar 20107009578.394.39$55,290
Feb 20101737073.585.44$13,110
Jan 20105219974.365.96$39,332
Dec 20095244771.445.48$37,692
Nov 200952712674.593.75$39,782
Oct 200953114772.544.11$39,123
Sep 200934917365.543.06$23,404
Aug 200952718167.423.22$36,113
Jul 200971420361.133.46$44,350
Jun 200950518366.163.90$34,124
May 200970220654.743.93$39,236
Apr 200970416546.773.59$33,518
Mar 20093499242.144.06$15,080
Feb 20095218332.814.63$17,479
Jan 20093598535.865.37$13,330
Dec 20085443137.105.98$20,368
Nov 20083555555.496.86$20,076
Oct 20087178675.246.92$54,542
Sep 200850549101.767.88$51,775
Aug 200817780114.228.48$20,896
Jul 200836396131.0811.39$48,675
Jun 200850996131.3313.03$68,098
May 2008517151123.1711.57$65,427
Apr 2008498138110.3110.45$56,377
Mar 2008704102101.909.66$72,723
Feb 200834812492.538.77$33,288
Jan 200852813390.388.21$48,812
Dec 200751812888.337.30$46,690
Nov 200767311891.677.29$62,554
Oct 200768313982.856.92$57,549
Sep 200749814575.846.24$38,674
Aug 200734014569.066.39$24,407
Jul 200766115170.906.39$47,829
Jun 200768916262.007.55$43,941
May 200734415458.747.85$21,415
Apr 200770511159.617.81$42,891
Mar 200732614256.927.30$19,593
Feb 20075029055.108.22$28,400
Jan 200750911250.306.73$26,356
Dec 200654213056.656.92$31,604
Nov 20065068654.207.62$28,080
Oct 200670115054.906.01$39,387
Sep 200668315260.085.04$41,800
Aug 200634216368.717.34$24,695
Jul 200650217369.376.34$35,921
Jun 200668812066.286.38$46,367
May 20066598866.016.42$44,066
Apr 200635612764.397.36$23,858
Mar 200651113756.707.08$29,944
Feb 200667612857.597.75$39,923
Jan 200650814960.598.93$32,111
Dec 200550913754.9413.42$29,802
Nov 200551414954.6910.59$29,688
Oct 200550016658.3413.80$31,460
Sep 200551318261.4512.08$33,722
Aug 200566918761.519.80$42,982
Jul 200566918755.697.84$38,723
Jun 200534217952.337.38$19,218
May 200533613145.226.65$16,065
Apr 200549913849.207.36$25,567
Mar 200567315450.377.15$35,001
Feb 200551218445.226.31$24,314
Jan 200535719943.166.32$16,666
Dec 200434015139.866.75$14,572
Nov 200433910345.286.33$16,002
Oct 200434614549.706.52$18,141
Sep 200469823143.245.28$31,402
Aug 200470725142.375.55$31,349
Jul 200471925638.286.08$29,081
Jun 200471624036.106.43$27,392
May 200471122737.486.49$28,123
Apr 200470720534.475.86$25,571
Mar 200471022234.365.53$25,623
Feb 200471818532.455.51$24,318
Jan 200470523332.036.30$24,049
Dec 200373119230.266.30$23,330
Nov 200371019828.804.60$21,358
Oct 200335721728.174.76$11,090
Sep 200371720426.314.75$19,833
Aug 200372120729.765.13$22,519
Jul 200371912729.415.17$21,802
Jun 200336818228.565.98$11,599
May 200371522926.595.97$20,380
Apr 200371821326.675.41$20,301
Mar 200371523331.146.10$23,685
Feb 200391220433.487.93$32,151
Jan 200355322530.315.58$18,017
Dec 20021,09622426.914.85$30,581
Nov 200273417524.664.14$18,824
Oct 200272328326.464.23$20,327
Sep 200272123527.443.64$20,639
Aug 200271023025.963.16$19,159
Jul 20021,05729424.583.06$26,881
Jun 200234630223.733.34$9,219
May 20021,06626524.663.58$27,237
Apr 200235522123.653.51$9,172
Mar 200272917922.003.10$16,593
Feb 200254311518.222.38$10,167
Jan 200291222017.172.38$16,182
Dec 200191820116.932.36$16,017
Nov 200173721318.072.41$13,830
Oct 200190419119.782.53$18,364
Sep 200154021024.262.25$13,573
Aug 200172322224.873.05$18,659
Jul 200172822523.933.20$18,140
Jun 200171322324.563.82$18,364
May 200171923225.524.31$19,348
Apr 200191218924.685.34$23,517
Mar 200156220124.545.38$14,872
Feb 200172115927.755.77$20,925
Jan 200174015627.478.40$21,638
Dec 200072517426.889.12$21,075
Nov 200072418732.215.66$24,378
Oct 200090021031.235.15$29,188
Sep 200073021431.875.19$24,375
Aug 20001,06621429.644.54$32,568
Jul 200072220528.534.09$21,437
Jun 200072520729.304.40$22,153
May 200071617727.263.68$20,169
Apr 200071426624.513.12$18,329
Mar 20001,08821728.422.86$31,542
Feb 200073117627.622.73$20,670
Jan 200067827525.272.48$17,815
Dec 19991,01333524.282.42$25,408
Nov 199969522323.192.43$16,660
Oct 19991,00922120.982.80$21,788
Sep 199999519221.752.62$22,144
Aug 199968128119.262.88$13,924
Jul 199999918417.892.37$18,309
Jun 199967515615.942.36$11,128
May 199967618115.792.32$11,094
Apr 199968716915.102.21$10,747
Mar 199985012812.471.84$10,835
Feb 1999672829.981.82$6,856
Jan 199966814210.381.90$7,204
Dec 1998860819.201.77$8,056
Nov 19986789010.892.19$7,580
Oct 19981,02020012.421.97$13,062
Sep 199868321812.592.08$9,053
Aug 19981,01423011.301.91$11,897
Jul 199867423411.742.24$8,436
Jun 199886218011.242.24$10,092
May 199883914612.622.21$10,910
Apr 19987759913.042.51$10,354
Mar 19986866012.802.31$8,919
Feb 199873411813.952.30$10,511
Jan 199884511914.702.15$12,678
Dec 199788217416.322.41$14,814
Nov 199762916018.193.09$11,936
Oct 19971,12512319.253.15$22,044
Sep 19971,18233117.742.95$21,947
Aug 19971,01126317.862.55$18,728
Jul 19971,13025917.582.25$20,447
Jun 19971,30521817.242.26$22,990
May 199788916118.972.31$17,236
Apr 199790918517.882.08$16,638
Mar 19971,061218.951.94$20,110
Feb 19971,14814120.492.21$23,834
Jan 19971,33022023.483.54$32,007
Dec 199684121723.32$19,612
Nov 19961,28151921.97$28,144
Oct 19961,23250523.31$28,718
Sep 19961,23453222.22$27,419
Aug 19961,33254520.26$26,986
Jul 19961,75859119.55$34,369
Jun 199696650518.73$18,093
May 19961,21055019.43$23,510
Apr 19961,32574421.51$28,501
Mar 19961,38970919.38$26,919
Feb 19961,06950816.98$18,152
Jan 19961,36662317.07$23,318
Dec 19951,29465217.19$22,244
Nov 19951,01051616.00$16,160
Oct 19951,27833315.43$19,720
Sep 19951,28357616.18$20,759
Aug 19951,23968415.92$19,725
Jul 19951,67875515.24$25,573
Jun 19951,06060816.41$17,395
May 19951,23948117.56$21,757
Apr 19951,15341617.73$20,443
Mar 19951,11135716.44$18,265
Feb 19951,18339216.58$19,614
Jan 19951,24332915.92$19,789
Dec 19941,02833515.03$15,451
Nov 19941,06059515.90$16,854
Oct 19941,19656915.58$18,634
Sep 19941,01262515.29$15,473
Aug 19941,1381,05816.13$18,356
Jul 19941,0741,18517.56$18,859
Jun 19941,0831,09417.09$18,508
May 19941,1081,14415.88$17,595
Apr 19941,2451,11814.14$17,604
Mar 19941,0631,41212.46$13,245
Feb 19941,24056212.50$15,500
Jan 19941,16685212.66$14,762
Dec 199397289412.33$11,985
Nov 19931,21979014.49$17,663
Oct 19931,16177615.85$18,402
Sep 19931,01759315.03$15,286
Aug 19931,14377215.66$17,899
Jul 19931,16780715.46$18,042
Jun 19931,05582316.79$17,713
May 19931,16490217.68$20,580
Apr 19931,28784818.05$23,230
Mar 19931,39883818.14$25,360
Feb 19931,23687317.90$22,124
Jan 19931,33288616.93$22,551

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.

Apr 2026 — as filed, then multipliedworked
Oil                  163 bbl  × $ 98.93 =    $16,126
Casinghead gas         0 Mcf  × $  2.87 =         $0

────────────────────────────────────────────────────
Month total                                  $16,126

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/905 is the state's own key, not one this site invented.