DAY

Operated by UNBRIDLED RESOURCES, LLC (P-5 875461) in the ACHILLES (TONKAWA) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 8331District 10Field 00440500OilCasinghead gasSaveExport
Value, all time
$18.6 M
Apr 2010 – May 2026
Value, last 12 filed months
$217 k
at the published price for each month
Months reported
194
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 13 leases and 13 wells, and the rule below applies to all of them.

Discovered
1977-01-05
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 40 acres. The field rule took effect on 2011-03-08.

The Commission's schedule remark for this field reads: FOR HORIZONTAL WELLS.

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
OilDisposition162,146 bbl$12,832,769
Casinghead gasProduction1,583,177 Mcf$5,764,212
Total$18,596,981

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 35.8235, -100.0298. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

35.82348, -100.02985 · 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 1 wells
With a plug date
0.0%
0 of 1 wells
Median depth
8,447 ft
1 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.
1100.0%

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 8,447 ft.

Completions filed
Apr 2010
1 of 1 wells

1 well

42-211346901011H8,447 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 20261843,079106.413.05$28,958
Apr 202603,01198.932.87$8,641
Mar 20261783,12189.753.15$25,805
Feb 202602,83163.503.75$10,617
Jan 20261822,66759.138.00$32,092
Dec 20251703,14956.664.41$23,530
Nov 202502,96858.593.93$11,654
Oct 20251733,18459.383.30$20,795
Sep 202502,40762.743.08$7,406
Aug 202502,42963.933.01$7,323
Jul 20251772,63166.743.32$20,535
Jun 20251852,38266.483.13$19,751
May 202502,42260.553.23$7,829
Apr 20251772,34462.363.54$19,343
Mar 202504,46667.704.27$19,062
Feb 202501,79570.884.34$7,792
Jan 20251611,96674.324.28$20,377
Dec 20241682,57568.993.12$19,628
Nov 202402,47069.052.20$5,430
Oct 20241372,43571.372.28$15,333
Sep 202402,33069.612.36$5,509
Aug 20241672,47575.632.06$17,738
Jul 20241672,50779.932.15$18,730
Jun 202402,94778.082.63$7,762
May 20241872,83478.812.20$20,968
Apr 202402,61984.451.66$4,345
Mar 20241762,99280.301.55$18,756
Feb 20241652,70076.091.78$17,371
Jan 202403,16373.023.30$10,431
Dec 20231923,49471.262.61$22,804
Nov 20231683,68377.892.81$23,426
Oct 20231844,06885.443.09$28,280
Sep 202303,07689.042.74$8,413
Aug 20231683,30080.522.67$22,348
Jul 20231793,66374.852.64$23,075
Jun 20231823,88168.962.26$21,316
May 20231733,93270.622.23$20,975
Apr 20231781,76478.122.24$17,853
Mar 2023050672.852.39$1,211
Feb 20230075.112.47$0
Jan 202301,04176.533.39$3,527
Dec 20221873,45276.415.73$34,065
Nov 20221794,18585.005.65$38,844
Oct 20221774,73587.185.86$43,196
Sep 20220084.888.16$0
Aug 20221788,30394.529.13$92,607
Jul 20223505,044101.587.54$73,595
Jun 20221794,964115.097.98$60,200
May 20221655,083109.378.43$60,911
Apr 20221744,353104.226.84$47,898
Mar 20221675,055108.885.08$43,844
Feb 20221734,77591.054.86$38,953
Jan 20223655,28081.844.54$53,831
Dec 20211895,15671.323.90$33,583
Nov 202104,39777.435.24$23,026
Oct 20211792,44279.795.71$28,236
Sep 20211724,79669.865.35$37,679
Aug 20211735,08266.024.22$32,871
Jul 20211895,02070.783.98$33,367
Jun 20211724,47269.493.38$27,070
May 20211814,83663.483.02$26,083
Apr 20213835,64160.362.76$38,678
Mar 20211795,64161.302.72$26,299
Feb 20211924,83657.805.55$37,927
Jan 20211925,62350.412.81$25,481
Dec 20201945,46744.642.68$23,287
Nov 20208095,04338.772.71$45,014
Oct 20201815,14636.972.48$19,446
Sep 20203775,38037.091.99$24,695
Aug 20201945,52439.982.39$20,931
Jul 20203855,31938.371.83$24,480
Jun 20201914,91234.901.69$14,969
May 20203815,27116.921.81$16,012
Apr 20203855,07514.751.80$14,836
Mar 20201945,29230.341.86$15,709
Feb 20201864,93849.881.98$19,058
Jan 20203875,05657.252.09$32,747
Dec 20191934,92159.012.30$22,729
Nov 20193735,18255.302.75$34,881
Oct 20191755,44253.472.42$22,519
Sep 20193705,29855.052.66$34,447
Aug 2019973,58853.112.30$13,420
Jul 20191894,73956.272.46$22,293
Jun 20191865,02252.782.49$22,328
May 20195504,66858.482.74$44,956
Apr 20193704,99962.632.75$36,924
Mar 201904,59656.803.06$14,073
Feb 20193824,09250.852.79$30,850
Jan 20193834,79746.033.23$33,115
Dec 20183784,58346.594.19$36,793
Nov 20181945,11752.934.24$31,950
Oct 20183815,11761.443.40$40,797
Sep 20183795,29259.543.11$39,013
Aug 20183835,48759.403.07$39,576
Jul 20183705,28965.142.93$39,609
Jun 20183735,16060.183.08$38,324
May 20183615,25565.382.90$38,846
Apr 20183855,08463.842.90$39,326
Mar 20185805,41761.222.79$50,604
Feb 201804,20361.782.77$11,626
Jan 20185745,21462.874.01$56,992
Dec 20173875,43057.272.92$38,027
Nov 20175765,30455.423.12$48,462
Oct 20171915,56049.292.98$26,004
Sep 20173875,47447.523.09$35,290
Aug 20175695,70445.373.00$42,953
Jul 20173845,72943.873.09$34,533
Jun 20173795,52042.493.09$33,146
May 20175585,90845.373.26$44,597
Apr 20173825,77547.933.21$36,856
Mar 20175556,02446.772.98$43,931
Feb 20173885,28250.452.95$35,170
Jan 20173866,07349.413.42$39,835
Dec 20165745,35548.763.72$47,924
Nov 20163675,74842.492.64$30,794
Oct 201606,08646.193.09$18,807
Sep 20165485,90441.553.10$41,076
Aug 20163786,23141.442.92$33,886
Jul 20165565,22741.622.92$38,426
Jun 20163795,94945.352.69$33,166
May 20163776,17642.521.99$28,327
Apr 20165745,94236.561.99$32,816
Mar 20165405,98533.011.79$28,563
Feb 20163725,74626.472.06$21,704
Jan 20165636,30727.352.36$30,310
Dec 20157116,51132.362.00$36,039
Nov 20151855,09738.792.17$18,223
Oct 20155496,31143.552.43$39,223
Sep 20155566,40842.992.76$41,578
Aug 20157486,85540.162.87$49,731
Jul 20151906,63148.152.95$28,677
Jun 20155356,15456.152.88$47,781
May 20155046,60555.212.96$47,347
Apr 20153475,71549.822.71$32,756
Mar 20155246,72742.892.93$42,216
Feb 20154836,24544.662.98$40,157
Jan 20155076,97743.433.10$43,652
Dec 20146907,39354.693.59$64,287
Nov 20143546,58770.464.25$52,950
Oct 20148529,68778.303.90$104,500
Sep 20146719,26486.164.05$95,290
Aug 20146739,20789.394.04$97,311
Jul 20145158,41996.564.18$84,916
Jun 201484610,23498.164.74$131,521
May 201484710,74094.734.73$131,000
Apr 20141,17110,00295.944.81$160,447
Mar 201484010,13595.895.06$131,798
Feb 20143619,27397.406.19$92,580
Jan 20141,19411,83690.404.86$165,469
Dec 20138888,60191.824.35$118,989
Nov 20131,08511,68488.853.74$140,080
Oct 201390513,05697.423.78$137,508
Sep 20131,20013,174104.113.72$173,910
Aug 201368714,130104.253.52$121,394
Jul 20131,10714,479102.523.72$167,319
Jun 20131,16714,42794.403.93$166,912
May 20131,06114,95694.834.15$162,668
Apr 20131,08913,41593.964.28$159,773
Mar 20131,31914,22893.623.91$179,157
Feb 20131,14211,81091.233.42$144,574
Jan 20131,44114,43391.603.42$181,355
Dec 20121,26414,57386.773.42$159,519
Nov 20121,63613,94386.953.62$192,793
Oct 20121,79313,79089.383.40$207,140
Sep 20121,39712,17394.672.92$167,780
Aug 20121,0218,44392.662.91$119,159
Jul 20121,42413,47785.133.02$161,936
Jun 20121,42613,50579.822.52$147,843
May 20121,43415,04991.612.49$168,815
Apr 20121,80716,414101.652.00$216,457
Mar 20121,44313,232105.052.22$180,990
Feb 20121,99218,022101.102.57$247,712
Jan 20128936,57098.092.73$105,557
Dec 20111,80719,72296.873.24$238,938
Nov 20111,96721,05795.723.31$258,007
Oct 20112,26823,17184.983.65$277,275
Sep 20112,46324,43283.623.99$303,337
Aug 20112,42225,81383.404.15$309,101
Jul 20112,94527,47294.144.52$401,340
Jun 20112,84227,52992.904.64$391,753
May 20114,00030,03698.134.40$524,823
Apr 20113,39630,188105.964.33$490,653
Mar 20114,30629,10196.364.06$532,999
Feb 20113,81826,26385.644.18$436,752
Jan 20115,25033,85186.504.59$609,460
Dec 20106,32239,51085.734.35$713,765
Nov 20107,11539,84480.843.80$726,398
Oct 20109,36746,17978.103.51$893,600
Sep 201011,43946,87172.633.98$1,017,336
Aug 201014,41241,63973.684.42$1,245,894
Jul 20100072.554.74$0
Jun 20100070.364.91$0
May 20100071.124.24$0
Apr 20100081.694.12$0

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                  184 bbl  × $106.41 =    $19,579
Casinghead gas     3,079 Mcf  × $  3.05 =     $9,378

────────────────────────────────────────────────────
Month total                                  $28,958

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. 10/O/8331 is the state's own key, not one this site invented.