COLBY, E.H. ET AL

Operated by DENBURY ONSHORE, LLC (P-5 215343) in the MANVEL (OLIGOCENE) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 18825District 03Field 57233775OilCasinghead gasSaveExport
Value, all time
$10.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$0
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 26 leases and 107 wells, and the rule below applies to all of them.

Discovered
1931-12-31
as the register files it
Field class
Oil and gas
the register's own label
Between wells
660 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 10 acres.

The Commission's schedule remark for this field reads: SEPARATED FROM MANVEL 1-1-56

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
OilDisposition194,160 bbl$8,555,987
Casinghead gasProduction423,074 Mcf$1,801,329
Total$10,357,316

19,646 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 (1)

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 29.4869, -95.3301. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

29.48689, -95.33009 · 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
100.0%
1 of 1 wells
With a plug date
100.0%
1 of 1 wells
Median depth
5,700 ft
1 wells filed one
Completion to plug
3.8 years
median over 1 well

What the state filed about each well

On the RRC proration schedule
1100.0%
A plug date is filed
1100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
1100.0%
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

The one well that filed a depth was drilled to 5,700 ft.

Completions filed
Oct 2022
1 of 1 wells
Plug dates filed
Jul 2026
1 of 1 wells

Last completion to plug: a median of 3.8 years across the 1 well that filed both dates, with the middle half between 3.8 years and 3.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-03932069165,700 ftOct 2022Jul 2026Yes

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 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 202403669.612.36$85
Aug 202410516775.632.06$8,286
Jul 20245217679.932.15$4,534
Jun 202421050678.082.63$17,730
May 202415137578.812.20$12,725
Apr 202414455784.451.66$13,085
Mar 202418267980.301.55$15,664
Feb 202414759076.091.78$12,238
Jan 202415353773.023.30$12,943
Dec 202317954671.262.61$14,181
Nov 202316662277.892.81$14,676
Oct 202312838685.443.09$12,128
Sep 202322056689.042.74$21,137
Aug 202315954780.522.67$14,265
Jul 20231651,15374.852.64$15,396
Jun 202319246568.962.26$14,291
May 202316648870.622.23$12,810
Apr 202318847278.122.24$15,743
Mar 202315843572.852.39$12,551
Feb 202313149875.112.47$11,067
Jan 202325445476.533.39$20,977
Dec 202212537276.415.73$11,682
Nov 202221435785.005.65$20,206
Oct 202222838287.185.86$22,117
Sep 202219845984.888.16$20,553
Aug 202221560994.529.13$25,880
Jul 2022241598101.587.54$28,991
Jun 2022217579115.097.98$29,593
May 2022250633109.378.43$32,681
Apr 2022240380104.226.84$27,611
Mar 2022175505108.885.08$21,618
Feb 202228345891.054.86$27,993
Jan 202225755081.844.54$23,529
Dec 202121543471.323.90$17,026
Nov 202134452277.435.24$29,370
Oct 202129973979.795.71$28,080
Sep 202121753569.865.35$18,022
Aug 202132856566.024.22$24,039
Jul 202124057070.783.98$19,257
Jun 20216655769.493.38$6,469
May 2021567963.483.02$3,793
Apr 20216163360.362.76$5,428
Mar 2021018961.302.72$514
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 20200044.642.68$0
Nov 20200038.772.71$0
Oct 20200036.972.48$0
Sep 20200037.091.99$0
Aug 20200039.982.39$0
Jul 20200038.371.83$0
Jun 202033034.901.69$1,152
May 202012925316.921.81$2,642
Apr 202024969914.751.80$4,934
Mar 202016259330.341.86$6,016
Feb 202019741049.881.98$10,638
Jan 202022137057.252.09$13,427
Dec 201926141359.012.30$16,353
Nov 2019173055.302.75$9,567
Oct 201921259853.472.42$12,782
Sep 201915458355.052.66$10,027
Aug 20199421253.112.30$5,481
Jul 201913917956.272.46$8,262
Jun 201916625952.782.49$9,407
May 201919924758.482.74$12,314
Apr 201915233262.632.75$10,433
Mar 201915426156.803.06$9,546
Feb 201917916550.852.79$9,563
Jan 201917137146.033.23$9,069
Dec 201818531746.594.19$9,946
Nov 201820930952.934.24$12,372
Oct 201821528461.443.40$14,175
Sep 201818642259.543.11$12,386
Aug 201827630759.403.07$17,336
Jul 201822536165.142.93$15,715
Jun 201831542860.183.08$20,274
May 201837368565.382.90$26,374
Apr 201826383763.842.90$19,218
Mar 201826797961.222.79$19,074
Feb 20183041,03961.782.77$21,655
Jan 20182781,12062.874.01$21,968
Dec 20173281,33357.272.92$22,679
Nov 201723598755.423.12$16,102
Oct 201727637149.292.98$14,711
Sep 20172084,62947.523.09$24,175
Aug 20172673,87745.373.00$23,762
Jul 20172855,31643.873.09$28,915
Jun 20171953,78342.493.09$19,965
May 20173851,16345.373.26$21,263
Apr 20173876,26647.933.21$38,673
Mar 20173486,31446.772.98$35,115
Feb 20172223,76550.452.95$22,316
Jan 20172262,90649.413.42$21,102
Dec 20162754,93948.763.72$31,796
Nov 20163975,10542.492.64$30,368
Oct 2016319046.193.09$14,735
Sep 2016387041.553.10$16,080
Aug 2016271041.442.92$11,230
Jul 2016399041.622.92$16,606
Jun 2016280045.352.69$12,698
May 2016282042.521.99$11,991
Apr 2016298036.561.99$10,895
Mar 2016320033.011.79$10,563
Feb 2016309026.472.06$8,179
Jan 2016318027.352.36$8,697
Dec 20152315,22132.362.00$17,925
Nov 20151561,71338.792.17$9,764
Oct 20153247,07243.552.43$31,271
Sep 20153606,14142.992.76$32,416
Aug 20154216,65740.162.87$36,030
Jul 20153125,16948.152.95$30,246
Jun 20152435,95056.152.88$30,797
May 20154812,95255.212.96$35,281
Apr 20154023,09349.822.71$28,399
Mar 20153464,17442.892.93$27,089
Feb 20153502,97944.662.98$24,497
Jan 20154522,64843.433.10$27,841
Dec 20143752,94954.693.59$31,100
Nov 20144272,61970.464.25$41,222
Oct 20143904,37178.303.90$47,588
Sep 20144224,70786.164.05$55,401
Aug 20143912,11289.394.04$43,474
Jul 20144021,96996.564.18$47,047
Jun 20142852,87498.164.74$41,589
May 20143943,98794.734.73$56,168
Apr 20143455,43195.944.81$59,218
Mar 20145196,94095.895.06$84,861
Feb 201434610,97197.406.19$101,633
Jan 20144317,47190.404.86$75,277
Dec 20134389,34491.824.35$80,905
Nov 20133174,03488.853.74$43,246
Oct 20132692597.423.78$26,300
Sep 2013352219104.113.72$37,461
Aug 20132192,411104.253.52$31,324
Jul 20134723,424102.523.72$61,119
Jun 20134514,08994.403.93$58,658
May 20135404,17694.834.15$68,535
Apr 20135373,85293.964.28$66,953
Mar 20134753,10893.623.91$56,631
Feb 20135252,32391.233.42$55,840
Jan 20135582,32391.603.42$59,057
Dec 20125861,60186.773.42$56,323
Nov 20125551,36286.953.62$53,194
Oct 20125851,30889.383.40$56,734
Sep 20126111,58394.672.92$62,463
Aug 20127481,62292.662.91$74,027
Jul 20127271,21785.133.02$65,566
Jun 20125911,18179.822.52$50,149
May 20128781,25091.612.49$83,544
Apr 20128191,581101.652.00$86,408
Mar 20127951,063105.052.22$85,877
Feb 2012921661101.102.57$94,812
Jan 20121,2611,53298.092.73$127,880
Dec 20111,5971,77196.873.24$160,439
Nov 20111,4331,39195.723.31$141,773
Oct 20111,4011,69284.983.65$125,230
Sep 20112,0292,07083.623.99$177,916
Aug 20112,3871,46183.404.15$205,138
Jul 20112,73364594.144.52$260,198
Jun 20112,9861,00492.904.64$282,058
May 20113,12173598.134.40$309,501
Apr 2011171,272105.964.33$7,313
Mar 20112662,04496.364.06$33,925
Feb 20112282,78185.644.18$31,150
Jan 20112233,22586.504.59$34,088
Dec 20102291,97185.734.35$28,202
Nov 2010832,75280.843.80$17,154
Oct 20101301,94878.103.51$16,988
Sep 20101731,86572.633.98$19,987
Aug 20102952,06973.684.42$30,879
Jul 20102852,07872.554.74$30,519
Jun 20103152,21570.364.91$33,040
May 20102722,49971.124.24$29,928
Apr 201022988381.694.12$22,347
Mar 201022789278.394.39$21,709
Feb 201023788573.585.44$22,255
Jan 201021397074.365.96$21,624
Dec 200923588071.445.48$21,614
Nov 200926371874.593.75$22,311
Oct 20092851,72672.544.11$27,768
Sep 20092911,65865.543.06$24,154
Aug 20093041,64567.423.22$25,790
Jul 20095131,46661.133.46$36,439
Jun 20096961,70666.163.90$52,692
May 200988549454.743.93$50,384
Apr 20098581,47146.773.59$45,406
Mar 20098882,06642.144.06$45,806
Feb 20097761,46332.814.63$32,239
Jan 200915847735.865.37$8,228
Dec 20084112,67537.105.98$31,237
Nov 20084323,43255.496.86$47,516
Oct 20084815,28175.246.92$72,745
Sep 2008258255101.767.88$28,263
Aug 20084732,544114.228.48$75,607
Jul 20083422,651131.0811.39$75,023
Jun 2008331839131.3313.03$54,405
May 2008281949123.1711.57$45,595
Apr 20085271,029110.3110.45$68,891
Mar 20086721,337101.909.66$81,398
Feb 20087581,77392.538.77$85,688
Jan 20087502,12890.388.21$85,247
Dec 20077985,63788.337.30$111,649
Nov 20073644,28291.677.29$64,591
Oct 20073054,94082.856.92$59,464
Sep 20072475,95875.846.24$55,935
Aug 20072056,15869.066.39$53,494
Jul 20071545,40470.906.39$45,439
Jun 20071353,46262.007.55$34,503
May 20072221,64858.747.85$25,971
Apr 20071571,63259.617.81$22,097
Mar 20071692,20456.927.30$25,713
Feb 20071471,09555.108.22$17,096
Jan 2007797750.306.73$4,492
Dec 2006928056.656.92$5,765
Nov 20068622354.207.62$6,360
Oct 20067625554.906.01$5,706
Sep 2006981,25160.085.04$12,189
Aug 200617761368.717.34$16,661
Jul 200615399669.376.34$16,931
Jun 200615966666.286.38$14,790
May 200611867666.016.42$12,132
Apr 2006134064.397.36$8,628
Mar 200620316156.707.08$12,650
Feb 200621254357.597.75$16,418
Jan 200620380660.598.93$19,500
Dec 200523588454.9413.42$24,770
Nov 20051971,01154.6910.59$21,479
Oct 20052091,09058.3413.80$27,230
Sep 200512692961.4512.08$18,964
Aug 200517328261.519.80$13,404
Jul 200516120455.697.84$10,566
Jun 200515920552.337.38$9,834
May 2005106045.226.65$4,793
Apr 2005101049.207.36$4,969
Mar 2005198050.377.15$9,973
Feb 2005727045.226.31$32,875
Jan 2005901043.166.32$38,887
Dec 20041,307039.866.75$52,097
Nov 20041,12612045.286.33$51,745
Oct 2004519049.706.52$25,794
Sep 20040043.245.28$0
Aug 20040042.375.55$0
Jul 20040038.286.08$0
Jun 20040036.106.43$0
May 20040037.486.49$0
Apr 200466034.475.86$2,275
Mar 2004242034.365.53$8,315
Feb 20040032.455.51$0
Jan 20040032.036.30$0
Dec 20030030.266.30$0
Nov 20030028.804.60$0
Oct 200357028.174.76$1,606
Sep 2003298026.314.75$7,840
Aug 2003288029.765.13$8,571
Jul 2003296029.415.17$8,705
Jun 2003327028.565.98$9,339
May 2003369026.595.97$9,812
Apr 2003333026.675.41$8,881
Mar 200335717831.146.10$12,202
Feb 200333820333.487.93$12,925
Jan 200339817730.315.58$13,051
Dec 2002408026.914.85$10,979
Nov 200219839824.664.14$6,529
Oct 200218042926.464.23$6,577
Sep 200230213727.443.64$8,785
Aug 200231337825.963.16$9,322
Jul 200239237424.583.06$10,780
Jun 200232640423.733.34$9,085
May 20023447724.663.58$8,759
Apr 200233527423.653.51$8,885
Mar 200237038822.003.10$9,344
Feb 200235941318.222.38$7,522
Jan 200232150317.172.38$6,707
Dec 20012991,37016.932.36$8,301
Nov 2001336018.072.41$6,072
Oct 20013699519.782.53$7,539
Sep 20013999524.262.25$9,894
Aug 200143674224.873.05$13,109
Jul 20014611,34723.933.20$15,338
Jun 20015321,05524.563.82$17,100
May 2001555025.524.31$14,164
Apr 20014544024.685.34$11,418
Mar 200182321624.545.38$21,358
Feb 200161220927.755.77$18,188
Jan 200167281927.478.40$25,338
Dec 200038649626.889.12$14,900
Nov 200041629832.215.66$15,085
Oct 200075913031.235.15$24,372
Sep 200078045031.875.19$27,193
Aug 200035312229.644.54$11,017
Jul 20005537928.534.09$16,100
Jun 20005698929.304.40$17,063
May 20005099927.263.68$14,240
Apr 20004826924.513.12$12,029
Mar 200060310328.422.86$17,432
Feb 20005857527.622.73$16,362
Jan 20008499825.272.48$21,697
Dec 19996219224.282.42$15,301
Nov 199959813723.192.43$14,201
Oct 199953412420.982.80$11,551
Sep 199953315121.752.62$11,988
Aug 199972112019.262.88$14,232
Jul 199952514317.892.37$9,732
Jun 19994859815.942.36$7,962
May 199965413915.792.32$10,649
Apr 199956912015.102.21$8,857
Mar 199967811012.471.84$8,657
Feb 19996061609.981.82$6,339
Jan 199958811610.381.90$6,324
Dec 19986731029.201.77$6,372
Nov 199848110210.892.19$5,461
Oct 19987687212.421.97$9,680
Sep 19986777612.592.08$8,682
Aug 19988524611.301.91$9,715
Jul 199879112611.742.24$9,568
Jun 19989829011.242.24$11,239
May 19988038212.622.21$10,315
Apr 19981,30923413.042.51$17,656
Mar 19981,04310212.802.31$13,586
Feb 199857312513.952.30$8,281
Jan 19986785414.702.15$10,083
Dec 19977331816.322.41$12,006
Nov 199758910518.193.09$11,038
Oct 19971,0113319.253.15$19,566
Sep 19971,019017.742.95$18,077
Aug 19977045817.862.55$12,722
Jul 199776615417.582.25$13,812
Jun 199759735617.242.26$11,096
May 199783438018.972.31$16,698
Apr 199767133217.882.08$12,689
Mar 199770643318.951.94$14,218
Feb 199784235020.492.21$18,025
Jan 199778958023.483.54$20,579
Dec 199699153623.32$23,110
Nov 19961,04855621.97$23,025
Oct 199676656323.31$17,855
Sep 199697056122.22$21,553
Aug 199685355620.26$17,282
Jul 199680261419.55$15,679
Jun 199685761118.73$16,052
May 19961,08573519.43$21,082
Apr 199690358921.51$19,424
Mar 19961,33766519.38$25,911
Feb 199691451816.98$15,520
Jan 19961,10856417.07$18,914
Dec 19951,05963717.19$18,204
Nov 19951,38852416.00$22,208
Oct 19951,65360115.43$25,506
Sep 19951,55255516.18$25,111
Aug 199595836915.92$15,251
Jul 199569923315.24$10,653
Jun 199559323916.41$9,731
May 199556724117.56$9,957
Apr 199543715617.73$7,748
Mar 199555720416.44$9,157
Feb 199558218316.58$9,650
Jan 199578651815.92$12,513
Dec 199486546615.03$13,001
Nov 199499228315.90$15,773
Oct 199483631415.58$13,025
Sep 199457826115.29$8,838
Aug 19941,34632916.13$21,711
Jul 19942,65234017.56$46,569
Jun 19941,0478217.09$17,893
May 19941,41165715.88$22,407
Apr 19941,87324014.14$26,484
Mar 19941,86218612.46$23,201
Feb 19941,81616912.50$22,700
Jan 19942,07530712.66$26,270
Dec 19931,76427812.33$21,750
Nov 19932,23531614.49$32,385
Oct 19931,05732115.85$16,753
Sep 19936809015.03$10,220
Aug 19931,19317615.66$18,682
Jul 19931,81648115.46$28,075
Jun 19931,99054416.79$33,412
May 19932,25065717.68$39,780
Apr 19931,91255718.05$34,512
Mar 19931,76936718.14$32,090
Feb 19931,92733517.90$34,493
Jan 19931,71036216.93$28,950

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.

Sep 2024 — as filed, then multipliedworked
Oil                    0 bbl  × $ 69.61 =         $0
Casinghead gas        36 Mcf  × $  2.36 =        $85

────────────────────────────────────────────────────
Month total                                      $85

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. 03/O/18825 is the state's own key, not one this site invented.