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KELTON

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

Oil lease lease 40138District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$41.2 M
Apr 2010 – May 2026
Value, last 12 filed months
$945 k
at the published price for each month
Months reported
194
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) field

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 16,587 leases and 43,997 wells, and the rule below applies to all of them.

Discovered
1952-12-22
as the register files it
Field class
Oil and gas
the register's own label
Between wells
0 ft
minimum
From a lease line
330 ft
minimum

A drilling unit in this field needs at least 80 acres. The field rule took effect on 2018-02-13.

The Commission's schedule remark for this field reads: “SPRABERRY (TREND AREA) FIELD EFFECTIVE 10/1/2019.”

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
OilDisposition441,764 bbl$34,369,247
Casinghead gasProduction1,970,390 Mcf$6,850,957
Total$41,220,203

Wells on this lease (5)

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 32.2198, -102.1456. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

32.22006, -102.14573 · 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
0.0%
0 of 5 wells
With a plug date
0.0%
0 of 5 wells
Median depth
11,895 ft
5 wells filed one
Completion to plug
—
no well filed both dates

What the state filed about each well

On the RRC proration schedule
00.0%
A plug date is filed
00.0%
BothOn the schedule and plugged. Neither fact cancels the other.
00.0%
NeitherNo plug date, and not on the schedule.
5100.0%

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

Between 11,120 and 11,952 ft, median 11,895 ft, over the 5 wells that filed a depth.

Completions filed
Apr 2010 – Feb 2012
5 of 5 wells

5 wells

42-3173730850511,950 ftFeb 2012——
42-3173730750611,952 ftJan 2012——
42-3173655950411,815 ftMar 2011——
42-3173580950211,895 ftDec 2010——
42-3173581250111,120 ftApr 2010——

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 (194)

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

194 months

May 20269187,221106.413.05$119,678
Apr 20267015,64098.932.87$85,535
Mar 20265796,09689.753.15$71,164
Feb 20265955,93163.503.75$60,026
Jan 20267716,51959.138.00$97,728
Dec 20258526,66856.664.41$77,703
Nov 20256726,76358.593.93$65,927
Oct 20256515,96059.383.30$58,353
Sep 20251,0596,67362.743.08$86,974
Aug 20257537,06863.933.01$69,448
Jul 20256966,93266.743.32$69,432
Jun 20259137,12166.483.13$82,976
May 20251,0006,64760.553.23$82,035
Apr 20259016,20362.363.54$78,164
Mar 20258306,36567.704.27$83,359
Feb 20257145,69070.884.34$75,308
Jan 20258886,31574.324.28$93,016
Dec 20249506,71968.993.12$86,513
Nov 20247826,35369.052.20$67,964
Oct 20241,1856,83571.372.28$100,167
Sep 20247356,66469.612.36$66,919
Aug 20248847,09375.632.06$81,494
Jul 20249397,04279.932.15$90,171
Jun 20247055,85378.082.63$70,463
May 20241,010078.812.20$79,598
Apr 20249476,58184.451.66$90,893
Mar 20241,0216,63280.301.55$92,234
Feb 20249585,94676.091.78$83,500
Jan 20241,1186,34473.023.30$102,557
Dec 20231,1226,77071.262.61$97,628
Nov 20238205,80877.892.81$80,176
Oct 20239146,47685.443.09$98,085
Sep 20237185,98689.042.74$80,303
Aug 20237797,28580.522.67$82,197
Jul 20237737,21474.852.64$76,917
Jun 20239397,54068.962.26$81,782
May 20231,0857,70470.622.23$93,783
Apr 20231,0927,53278.122.24$102,162
Mar 20231,1477,61672.852.39$101,785
Feb 20231,0704,56075.112.47$91,611
Jan 20237864,89776.533.39$76,742
Dec 20229085,76576.415.73$102,408
Nov 20221,0137,53485.005.65$128,643
Oct 20221,1798,03987.185.86$149,924
Sep 20229027,56984.888.16$138,353
Aug 20229818,00194.529.13$165,751
Jul 20228796,046101.587.54$134,888
Jun 20228917,244115.097.98$160,332
May 20221,1079,303109.378.43$199,525
Apr 20221,3409,994104.226.84$207,990
Mar 20221,1427,822108.885.08$164,049
Feb 20221,2177,40591.054.86$146,788
Jan 20221,4448,24481.844.54$155,586
Dec 20211,1718,16071.323.90$115,333
Nov 20211,4167,44177.435.24$148,608
Oct 20211,0737,59079.795.71$128,983
Sep 20217336,67069.865.35$86,898
Aug 20211,3548,14666.024.22$123,772
Jul 20211,0157,22370.783.98$100,604
Jun 20211,2026,42869.493.38$105,258
May 20218056,89763.483.02$71,914
Apr 20211,1217,88760.362.76$89,419
Mar 20211,5009,36761.302.72$117,400
Feb 20219246,96357.805.55$92,038
Jan 20211,4149,36650.412.81$97,601
Dec 20201,1838,93644.642.68$76,717
Nov 20201,4329,81938.772.71$82,094
Oct 20201,4218,89936.972.48$74,590
Sep 20201,1528,18137.091.99$59,016
Aug 20201,6139,31439.982.39$86,703
Jul 20201,3698,21238.371.83$67,516
Jun 20201,3337,32234.901.69$58,898
May 20209765,38516.921.81$26,286
Apr 20208974,21314.751.80$20,833
Mar 20208244,00630.341.86$32,436
Feb 20209624,70249.881.98$57,298
Jan 20201,2425,74857.252.09$83,145
Dec 20191,4046,12059.012.30$96,953
Nov 20191,2816,25855.302.75$88,053
Oct 20191,3736,53553.472.42$89,219
Sep 20191,1125,89155.052.66$76,870
Aug 20191,1555,34253.112.30$73,652
Jul 20191,0034,84656.272.46$68,360
Jun 20191,1256,38352.782.49$75,279
May 20191,2076,08858.482.74$87,268
Apr 20191,2205,34162.632.75$91,100
Mar 20191,2435,91456.803.06$88,712
Feb 20191,1566,15150.852.79$75,958
Jan 20191,3688,14746.033.23$89,269
Dec 20181,4978,96546.594.19$107,268
Nov 20181,5759,79852.934.24$124,881
Oct 20181,48710,51661.443.40$127,095
Sep 20181,38110,23159.543.11$114,023
Aug 20181,64811,08759.403.07$131,890
Jul 20181,55411,30965.142.93$134,384
Jun 20181,46610,86160.183.08$121,642
May 20181,71010,60565.382.90$142,563
Apr 20181,65910,14463.842.90$135,336
Mar 20181,49910,61661.222.79$121,354
Feb 20181,5399,31461.782.77$120,843
Jan 20181,4666,93362.874.01$119,964
Dec 20171,87510,34257.272.92$137,596
Nov 20171,7267,12655.423.12$117,876
Oct 20171,8336,83249.292.98$110,733
Sep 20171,4277,72447.523.09$91,657
Aug 20171,3587,56545.373.00$84,341
Jul 20171,1644,83443.873.09$65,989
Jun 20171,3836,61642.493.09$79,189
May 20172,16410,36645.373.26$132,009
Apr 20171,4959,34247.933.21$101,658
Mar 20171,4938,80646.772.98$96,102
Feb 20171,5908,59250.452.95$105,584
Jan 20171,9718,45749.413.42$126,300
Dec 20161,8258,53848.763.72$120,773
Nov 20161,6908,98842.492.64$95,576
Oct 20162,1339,22746.193.09$127,037
Sep 20161,5227,69441.553.10$87,095
Aug 20161,7767,02241.442.92$94,132
Jul 20161,9329,78441.622.92$109,022
Jun 20162,0749,71245.352.69$120,141
May 20161,9398,94042.521.99$100,246
Apr 20162,02610,89136.561.99$95,755
Mar 20162,11310,69633.011.79$88,939
Feb 20161,9327,20826.472.06$66,015
Jan 20161,9618,84427.352.36$74,544
Dec 20151,9067,95932.362.00$77,607
Nov 20151,9065,94238.792.17$86,812
Oct 20151,71914,66643.552.43$110,451
Sep 20151,68415,57642.992.76$115,360
Aug 20153,31317,99840.162.87$184,749
Jul 20152,81015,67948.152.95$181,477
Jun 20152,13314,61756.152.88$161,907
May 20152,23015,11855.212.96$167,799
Apr 20151,71813,89149.822.71$123,188
Mar 20152,79317,15442.892.93$170,134
Feb 20152,50714,79244.662.98$155,986
Jan 20152,66514,53943.433.10$160,821
Dec 20142,55615,09454.693.59$193,996
Nov 20142,50212,03570.464.25$227,462
Oct 20142,2447,79278.303.90$206,101
Sep 20141,0385,63386.164.05$112,222
Aug 20141,79212,62189.394.04$211,114
Jul 20142,47718,71696.564.18$317,405
Jun 20143,13722,28598.164.74$413,489
May 20143,84123,58694.734.73$475,339
Apr 20143,90621,01395.944.81$475,796
Mar 20143,34614,60595.895.06$394,703
Feb 20143,15912,40197.406.19$384,474
Jan 20143,58215,32290.404.86$398,289
Dec 20132,61914,98291.824.35$305,715
Nov 20133,30818,36088.853.74$362,551
Oct 20134,06120,35597.423.78$472,551
Sep 20133,58017,716104.113.72$438,577
Aug 20133,13517,557104.253.52$388,670
Jul 20133,47618,850102.523.72$426,439
Jun 20134,06219,56894.403.93$460,422
May 20134,02324,13394.834.15$481,631
Apr 20134,74824,24293.964.28$549,941
Mar 20135,68325,72693.623.91$632,705
Feb 20135,04320,14091.233.42$528,950
Jan 20136,26022,44491.603.42$650,172
Dec 20126,56625,54586.773.42$657,100
Nov 20127,22929,93886.953.62$737,086
Oct 20127,91530,82289.383.40$812,228
Sep 20128,27230,67394.672.92$872,626
Aug 201210,51430,76192.662.91$1,063,685
Jul 20123,73210,51185.133.02$349,457
Jun 20128,45121,11179.822.52$727,738
May 20128,58120,00391.612.49$835,879
Apr 201211,97429,222101.652.00$1,275,508
Mar 201215,29442,881105.052.22$1,701,920
Feb 20123,5605,533101.102.57$374,137
Jan 20123,7967,32998.092.73$392,388
Dec 20112,9326,36896.873.24$304,654
Nov 20113,1298,26495.723.31$326,872
Oct 20113,79211,05084.983.65$362,561
Sep 20114,35313,26183.623.99$416,854
Aug 20114,75713,17483.404.15$451,397
Jul 20114,72515,00894.144.52$512,606
Jun 20115,25914,88492.904.64$557,621
May 20115,6449,95598.134.40$597,696
Apr 20117,67118,445105.964.33$892,747
Mar 20117,65210,36896.364.06$779,413
Feb 20114,6069,70885.644.18$435,037
Jan 20116,27113,41886.504.59$604,014
Dec 20105,5317,22285.734.35$505,572
Nov 20101,4841,64580.843.80$126,210
Oct 20101,8391,24178.103.51$147,980
Sep 20101,8361,45072.633.98$139,119
Aug 20102,2052,67773.684.42$174,295
Jul 20101,8362,72972.554.74$146,128
Jun 20102,9192,85370.364.91$219,390
May 20102,00759071.124.24$145,237
Apr 20101,833081.694.12$149,738

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                  918 bbl  × $106.41 =    $97,684
Casinghead gas     7,221 Mcf  × $  3.05 =    $21,994

────────────────────────────────────────────────────
Month total                                 $119,678

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/40138 is the state's own key, not one this site invented.