COX "9"

Operated by DIAMONDBACK E&P LLC (P-5 217012) 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 36430District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$16.2 M
Apr 2000 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
314
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 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
OilDisposition235,517 bbl$14,945,448
Casinghead gasProduction329,227 Mcf$1,258,825
Total$16,204,273

Wells on this lease (4)

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 32.3216, -102.0136. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.6 miles.

32.32171, -102.01357 · 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
50.0%
2 of 4 wells
With a plug date
50.0%
2 of 4 wells
Median depth
11,166 ft
4 wells filed one
Completion to plug
24.2 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
250.0%
A plug date is filed
250.0%
BothOn the schedule and plugged. Neither fact cancels the other.
250.0%
NeitherNo plug date, and not on the schedule.
250.0%

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 10,000 and 11,186 ft, median 11,166 ft, over the 4 wells that filed a depth.

Completions filed
Jun 2000 – Dec 2011
4 of 4 wells
Plug dates filed
Nov 2022 – Jul 2026
2 of 4 wells; 2 filed none

Last completion to plug: a median of 24.2 years across the 2 wells that filed both dates, with the middle half between 23.3 years and 25.1 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

4 wells

42-31737020411,186 ftDec 2011
42-31737025311,166 ftOct 2011
42-31734271210,000 ftAug 2000Jul 2026Yes
42-31734246111,165 ftJun 2000Nov 2022Yes

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 (314)

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

314 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 20241851268.993.12$12,801
Nov 20240069.052.20$0
Oct 20240971.372.28$21
Sep 20240069.612.36$0
Aug 202435444575.632.06$27,691
Jul 202435463779.932.15$29,663
Jun 202432561278.082.63$26,988
May 202435366678.812.20$29,284
Apr 202437144084.451.66$32,061
Mar 202437145780.301.55$30,497
Feb 202435538176.091.78$27,692
Jan 202435247573.023.30$27,269
Dec 202354156271.262.61$40,019
Nov 202334456277.892.81$28,372
Oct 202367959685.443.09$59,854
Sep 202332468289.042.74$30,714
Aug 202332792880.522.67$28,810
Jul 202369699674.852.64$54,727
Jun 202368381468.962.26$48,938
May 2023077670.622.23$1,728
Apr 202335058478.122.24$28,649
Mar 202335132272.852.39$26,341
Feb 202334972275.112.47$27,994
Jan 202352973976.533.39$42,988
Dec 202235471476.415.73$31,140
Nov 202234271685.005.65$33,113
Oct 202269377987.185.86$64,984
Sep 202233172984.888.16$34,047
Aug 20220094.529.13$0
Jul 20223300101.587.54$33,521
Jun 20226500115.097.98$74,809
May 20223000109.378.43$32,811
Apr 20223460104.226.84$36,060
Mar 20225070108.885.08$55,202
Feb 2022553091.054.86$50,351
Jan 2022341081.844.54$27,907
Dec 2021510071.323.90$36,373
Nov 2021507077.435.24$39,257
Oct 2021159079.795.71$12,687
Sep 20216691069.865.35$46,790
Aug 2021309066.024.22$20,400
Jul 20211685070.783.98$12,090
Jun 202149968469.493.38$36,988
May 202166355563.483.02$43,762
Apr 202150660360.362.76$32,205
Mar 202133855961.302.72$22,238
Feb 202107357.805.55$405
Jan 202150830250.412.81$26,457
Dec 202036134844.642.68$17,046
Nov 202034962738.772.71$15,228
Oct 202052263936.972.48$20,882
Sep 202034156237.091.99$13,767
Aug 202049732139.982.39$20,636
Jul 202070992638.371.83$28,894
Jun 202063987134.901.69$23,773
May 20208611,15716.921.81$16,668
Apr 20206511,12814.751.80$11,638
Mar 20205661,42230.341.86$19,812
Feb 20206901,41149.881.98$37,212
Jan 20208691,54357.252.09$52,982
Dec 20191,1421,63259.012.30$71,150
Nov 20195081,53855.302.75$32,323
Oct 20197891,65153.472.42$46,181
Sep 20196361,50955.052.66$39,022
Aug 20199711,77853.112.30$55,667
Jul 20191,0181,88056.272.46$61,908
Jun 20191,0661,65152.782.49$60,376
May 20197921,75558.482.74$51,125
Apr 20191,0511,65862.632.75$70,385
Mar 20191,0421,63156.803.06$64,180
Feb 20199861,61850.852.79$54,656
Jan 20191,3541,74846.033.23$67,967
Dec 20181,24555746.594.19$60,336
Nov 201894051252.934.24$51,924
Oct 201868236661.443.40$43,146
Sep 20188761,25059.543.11$56,042
Aug 20181,2341,68959.403.07$78,479
Jul 20181,3431,26665.142.93$91,195
Jun 20181,3071,41860.183.08$83,018
May 20189261,73765.382.90$65,581
Apr 20181,1561,48863.842.90$78,115
Mar 20181,6281,69761.222.79$104,395
Feb 20181,7241,58161.782.77$110,882
Jan 20181,5761,83962.874.01$106,456
Dec 20171,8332,03157.272.92$110,910
Nov 20171,4771,72855.423.12$87,244
Oct 20174881,00649.292.98$27,055
Sep 201760899747.523.09$31,970
Aug 20178561,07145.373.00$42,054
Jul 20174721,20143.873.09$24,414
Jun 20171,0321,95542.493.09$49,885
May 20171,3122,18145.373.26$66,643
Apr 20176551,75047.933.21$37,014
Mar 20179982,00746.772.98$52,665
Feb 20171,3072,10850.452.95$72,162
Jan 20171,2152,22949.413.42$67,654
Dec 20161,0202,07348.763.72$57,453
Nov 20161,1062,13642.492.64$52,642
Oct 20161,2252,03446.193.09$62,868
Sep 20168692,03041.553.10$42,401
Aug 20161,3782,26041.442.92$63,713
Jul 20168841,88241.622.92$42,296
Jun 20161,0841,59645.352.69$53,446
May 20161,3141,74542.521.99$59,346
Apr 20161,0272,19236.561.99$41,911
Mar 20161,3371,69733.011.79$47,179
Feb 20168331,69426.472.06$25,545
Jan 20161,1781,91927.352.36$36,756
Dec 20151,3671,71732.362.00$47,673
Nov 20151,0141,91538.792.17$43,484
Oct 20151,4002,01743.552.43$65,864
Sep 20151,1912,19642.992.76$57,259
Aug 20151,6592,58440.162.87$74,048
Jul 20151,3931,48348.152.95$71,441
Jun 20151,5162,27956.152.88$91,693
May 20151,5403,72055.212.96$96,018
Apr 20152,5883,53949.822.71$138,513
Mar 20158281,35042.892.93$39,475
Feb 20151,3741,47944.662.98$65,765
Jan 20151,18237043.433.10$52,481
Dec 20148331,62354.693.59$51,386
Nov 20142,0893,14670.464.25$160,567
Oct 20141,8851,29678.303.90$152,651
Sep 20142,5244,33286.164.05$234,993
Aug 20141,0101,14289.394.04$94,892
Jul 20141,0031,47296.564.18$103,002
Jun 20141,1431,94698.164.74$121,415
May 20141,2291,92694.734.73$125,527
Apr 20149972,03295.944.81$105,424
Mar 20141,8832,51695.895.06$193,284
Feb 20141,6032,09697.406.19$169,111
Jan 20141,8062,23490.404.86$174,121
Dec 20131,2192,03191.824.35$120,773
Nov 20131,0651,77588.853.74$101,261
Oct 20131,6762,56197.423.78$172,955
Sep 20131,8702,593104.113.72$204,326
Aug 20131,3661,573104.253.52$147,947
Jul 20131,4663,432102.523.72$163,054
Jun 20131,7193,03794.403.93$174,219
May 20131,8912,55194.834.15$189,908
Apr 20131,6933,18793.964.28$172,723
Mar 20131,5771,70193.623.91$154,295
Feb 20131,7323,50991.233.42$170,011
Jan 20132,3982,30991.603.42$227,553
Dec 20122,3623,21886.773.42$215,957
Nov 20121,6881,70286.953.62$152,941
Oct 20122,5321,83789.383.40$232,555
Sep 20122,0122,04694.672.92$196,447
Aug 20122,1822,35692.662.91$209,036
Jul 20122,8504,16385.133.02$255,196
Jun 20122,2054,56079.822.52$187,490
May 20122,8314,65091.612.49$270,919
Apr 20122,8045,349101.652.00$295,707
Mar 20124,3577,442105.052.22$474,240
Feb 20123,6403,566101.102.57$377,169
Jan 20121,8462,77698.092.73$188,664
Dec 20112,3622,63696.873.24$237,347
Nov 201166154095.723.31$65,059
Oct 20111,1256484.983.65$95,836
Sep 201130724183.623.99$26,632
Aug 201144947483.404.15$39,413
Jul 201134741494.144.52$34,537
Jun 201150943892.904.64$49,318
May 2011947898.134.40$2,989
Apr 2011346193105.964.33$37,498
Mar 201151146596.364.06$51,127
Feb 201134729885.644.18$30,963
Jan 201116444586.504.59$16,228
Dec 201017946285.734.35$17,354
Nov 201047051880.843.80$39,961
Oct 201065054078.103.51$52,660
Sep 2010049072.633.98$1,950
Aug 201033926473.684.42$26,144
Jul 201051715672.554.74$38,247
Jun 20101789370.364.91$12,981
May 201017827471.124.24$13,820
Apr 20103433281.694.12$28,152
Mar 2010493078.394.39$38,646
Feb 20101786773.585.44$13,462
Jan 201035039074.365.96$28,352
Dec 200932538971.445.48$25,351
Nov 200917441674.593.75$14,539
Oct 200934142072.544.11$26,462
Sep 200950842165.543.06$34,585
Aug 200932913267.423.22$22,606
Jul 200919617661.133.46$12,591
Jun 2009274066.163.90$18,128
May 20093179354.743.93$17,718
Apr 200934628246.773.59$17,194
Mar 200934729442.144.06$15,816
Feb 200933728732.814.63$12,387
Jan 200934932635.865.37$14,266
Dec 200851539837.105.98$21,485
Nov 200817013055.496.86$10,325
Oct 200817119975.246.92$14,244
Sep 2008346250101.767.88$37,178
Aug 2008318457114.228.48$40,199
Jul 2008511462131.0811.39$72,244
Jun 2008329353131.3313.03$47,808
May 2008168309123.1711.57$24,269
Apr 2008342325110.3110.45$41,124
Mar 2008349332101.909.66$38,772
Feb 200834131392.538.77$34,298
Jan 200834631390.388.21$33,840
Dec 200734032388.337.30$32,391
Nov 200717145391.677.29$18,979
Oct 200733351182.856.92$31,126
Sep 200716839175.846.24$15,183
Aug 200737143169.066.39$28,374
Jul 200734542570.906.39$27,175
Jun 200717437862.007.55$13,641
May 200734045558.747.85$23,542
Apr 200717250959.617.81$14,226
Mar 200735351356.927.30$23,839
Feb 200716645955.108.22$12,918
Jan 200749948950.306.73$28,389
Dec 200630142756.656.92$20,006
Nov 200632936554.207.62$20,612
Oct 200635459854.906.01$23,031
Sep 200634260260.085.04$23,580
Aug 200632756668.717.34$26,623
Jul 200635152069.376.34$27,647
Jun 200652348166.286.38$37,735
May 200635352066.016.42$26,643
Apr 200623454764.397.36$19,093
Mar 200649552056.707.08$31,750
Feb 200652444157.597.75$33,595
Jan 200634349460.598.93$25,195
Dec 200536248754.9413.42$26,422
Nov 200550535654.6910.59$31,388
Oct 20051611,07058.3413.80$24,154
Sep 200546888461.4512.08$39,436
Aug 20053451,18661.519.80$32,840
Jul 200534296355.697.84$26,599
Jun 200547963152.337.38$29,724
May 200532063645.226.65$18,701
Apr 200534860449.207.36$21,567
Mar 200550758150.377.15$29,695
Feb 200552254245.226.31$27,026
Jan 200535265843.166.32$19,352
Dec 200453469639.866.75$25,984
Nov 200436470245.286.33$20,926
Oct 200468973949.706.52$39,058
Sep 200435671543.245.28$19,171
Aug 200436476042.375.55$19,641
Jul 200435578038.286.08$18,335
Jun 200452377636.106.43$23,872
May 200451184737.486.49$24,653
Apr 200448970034.475.86$20,957
Mar 200450388634.365.53$22,183
Feb 200446787632.455.51$19,981
Jan 200462578432.036.30$24,958
Dec 200348589130.266.30$20,291
Nov 200365699228.804.60$23,451
Oct 20033451,14528.174.76$15,168
Sep 20037941,21126.314.75$26,642
Aug 20033511,29329.765.13$17,078
Jul 20036841,25329.415.17$26,596
Jun 200350297328.565.98$20,159
May 20035161,36526.595.97$21,873
Apr 20036921,60026.675.41$27,107
Mar 20036711,51231.146.10$30,112
Feb 20036471,31233.487.93$32,060
Jan 20036361,29730.315.58$26,517
Dec 20028481,42026.914.85$29,712
Nov 20026811,31024.664.14$22,213
Oct 20028171,48126.464.23$27,881
Sep 20026771,53127.443.64$24,142
Aug 20028391,51125.963.16$26,561
Jul 20026941,44924.583.06$21,495
Jun 20026831,41623.733.34$20,935
May 20028741,40724.663.58$26,596
Apr 20026811,21723.653.51$20,380
Mar 200265789022.003.10$17,215
Feb 200268776718.222.38$14,339
Jan 20028831,20217.172.38$18,017
Dec 20018731,11916.932.36$17,426
Nov 20016971,13318.072.41$15,320
Oct 20018801,29919.782.53$20,691
Sep 20011,0091,25324.262.25$27,299
Aug 20011,0351,30824.873.05$29,734
Jul 20011,2121,24623.933.20$32,987
Jun 200150987624.563.82$15,851
May 200185195525.524.31$25,831
Apr 200168579824.685.34$21,163
Mar 20011,4181,33024.545.38$41,948
Feb 20011,1821,00527.755.77$38,596
Jan 20011,5801,58227.478.40$56,689
Dec 20001,1651,17626.889.12$42,043
Nov 20001,5741,34632.215.66$58,314
Oct 20001,2191,17731.235.15$44,126
Sep 200087462031.875.19$31,070
Aug 200088878529.644.54$29,885
Jul 200088199728.534.09$29,212
Jun 2000704029.304.40$20,627
May 2000752027.263.68$20,500
Apr 20000024.513.12$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.

Dec 2024 — as filed, then multipliedworked
Oil                  185 bbl  × $ 68.99 =    $12,763
Casinghead gas        12 Mcf  × $  3.12 =        $37

────────────────────────────────────────────────────
Month total                                  $12,801

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/36430 is the state's own key, not one this site invented.