COX, EDNA "8"

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 36278District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$1.5 M
Aug 1999 – Apr 2025
Value, last 12 filed months
$0
at the published price for each month
Months reported
309
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
OilDisposition25,884 bbl$1,267,144
Casinghead gasProduction40,463 Mcf$219,189
Total$1,486,333

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 32.3319, -101.9948. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.33186, -101.99481 · 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
11,175 ft
1 wells filed one
Completion to plug
4.6 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 11,175 ft.

Completions filed
Feb 2017
1 of 1 wells
Plug dates filed
Sep 2021
1 of 1 wells

Last completion to plug: a median of 4.6 years across the 1 well that filed both dates, with the middle half between 4.6 years and 4.6 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

1 well

42-31731492111,175 ftFeb 2017Sep 2021Yes

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 (309)

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

309 months

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 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 202200115.097.98$0
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20210069.493.38$0
May 20210063.483.02$0
Apr 20210060.362.76$0
Mar 20210061.302.72$0
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 20200034.901.69$0
May 20200016.921.81$0
Apr 20200014.751.80$0
Mar 20200030.341.86$0
Feb 20200049.881.98$0
Jan 20200057.252.09$0
Dec 20190059.012.30$0
Nov 20190055.302.75$0
Oct 20190053.472.42$0
Sep 20190055.052.66$0
Aug 20190053.112.30$0
Jul 20190056.272.46$0
Jun 20190052.782.49$0
May 20190058.482.74$0
Apr 20190062.632.75$0
Mar 20190056.803.06$0
Feb 20190050.852.79$0
Jan 20190046.033.23$0
Dec 20180046.594.19$0
Nov 20180052.934.24$0
Oct 20180061.443.40$0
Sep 20180059.543.11$0
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$0
May 20180065.382.90$0
Apr 20180063.842.90$0
Mar 20180061.222.79$0
Feb 20180061.782.77$0
Jan 20180062.874.01$0
Dec 20170057.272.92$0
Nov 20170055.423.12$0
Oct 20170049.292.98$0
Sep 20170047.523.09$0
Aug 2017118045.373.00$5,354
Jul 20170043.873.09$0
Jun 20170042.493.09$0
May 20172045.373.26$91
Apr 20171047.933.21$48
Mar 20170046.772.98$0
Feb 20170050.452.95$0
Jan 20170049.413.42$0
Dec 20160048.763.72$0
Nov 20160042.492.64$0
Oct 20161046.193.09$46
Sep 2016126041.553.10$5,235
Aug 20161041.442.92$41
Jul 2016126041.622.92$5,244
Jun 20160045.352.69$0
May 2016129042.521.99$5,485
Apr 20160036.561.99$0
Mar 2016138033.011.79$4,555
Feb 20160026.472.06$0
Jan 20160027.352.36$0
Dec 2015139032.362.00$4,498
Nov 20150038.792.17$0
Oct 2015141043.552.43$6,141
Sep 20153042.992.76$129
Aug 2015134040.162.87$5,381
Jul 20150048.152.95$0
Jun 2015141056.152.88$7,917
May 20150055.212.96$0
Apr 2015126049.822.71$6,277
Mar 201565042.892.93$2,788
Feb 20150044.662.98$0
Jan 2015160043.433.10$6,949
Dec 20140054.693.59$0
Nov 2014176070.464.25$12,401
Oct 201405478.303.90$211
Sep 201416620486.164.05$15,128
Aug 2014112789.394.04$602
Jul 2014320896.564.18$1,159
Jun 201414821198.164.74$15,527
May 2014115494.734.73$823
Apr 201416915295.944.81$16,945
Mar 2014018195.895.06$915
Feb 201415217797.406.19$15,901
Jan 2014016390.404.86$792
Dec 201316014391.824.35$15,314
Nov 201309588.853.74$355
Oct 20131694197.423.78$16,619
Sep 2013118104.113.72$171
Aug 201317314104.253.52$18,085
Jul 20130124102.523.72$461
Jun 20131697994.403.93$16,264
May 20131711894.834.15$16,291
Apr 20131093.964.28$94
Mar 201302993.623.91$113
Feb 2013411391.233.42$751
Jan 20131739091.603.42$16,155
Dec 201203786.773.42$127
Nov 201218413086.953.62$16,470
Oct 2012013489.383.40$456
Sep 2012015094.672.92$438
Aug 201217321392.662.91$16,650
Jul 201205985.133.02$178
Jun 20121688679.822.52$13,626
May 2012010491.612.49$259
Apr 2012172162101.652.00$17,807
Mar 2012170136105.052.22$18,161
Feb 20121127101.102.57$428
Jan 201235214998.092.73$34,935
Dec 2011213996.873.24$644
Nov 201109695.723.31$318
Oct 20111512084.983.65$12,905
Sep 201117712283.623.99$15,287
Aug 2011119983.404.15$909
Jul 2011171394.144.52$16,111
Jun 20113992.904.64$320
May 201141198.134.40$441
Apr 201129537105.964.33$31,419
Mar 2011010696.364.06$430
Feb 201101885.644.18$75
Jan 201117413786.504.59$15,680
Dec 2010014785.734.35$639
Nov 201033817380.843.80$27,981
Oct 2010014778.103.51$516
Sep 201015612672.633.98$11,832
Aug 20101772273.684.42$13,139
Jul 2010016972.554.74$800
Jun 2010019270.364.91$943
May 201031914771.124.24$23,310
Apr 2010011781.694.12$482
Mar 2010015178.394.39$663
Feb 201016812873.585.44$13,058
Jan 2010011174.365.96$662
Dec 200918813571.445.48$14,171
Nov 2009013474.593.75$503
Oct 200916815172.544.11$12,807
Sep 2009021665.543.06$662
Aug 200917822967.423.22$12,738
Jul 2009016961.133.46$586
Jun 200917518666.163.90$12,302
May 200913054.743.93$173
Apr 2009173246.773.59$8,098
Mar 20091042.144.06$42
Feb 20091764732.814.63$5,992
Jan 200917114735.865.37$6,922
Dec 2008019237.105.98$1,148
Nov 2008017655.496.86$1,207
Oct 200817120675.246.92$14,292
Sep 20080207101.767.88$1,631
Aug 2008169307114.228.48$21,907
Jul 20082324131.0811.39$3,952
Jun 20081300131.3313.03$4,041
May 20080248123.1711.57$2,870
Apr 2008295255110.3110.45$35,207
Mar 20080193101.909.66$1,865
Feb 200818992.538.77$873
Jan 2008210490.388.21$1,034
Dec 2007312788.337.30$1,192
Nov 2007012491.677.29$904
Oct 200788582.856.92$1,251
Sep 200721575.846.24$245
Aug 200702569.066.39$160
Jul 20071703670.906.39$12,283
Jun 200717726162.007.55$12,944
May 2007028258.747.85$2,213
Apr 200716327259.617.81$11,839
Mar 200717328056.927.30$11,892
Feb 2007125155.108.22$2,117
Jan 200715727250.306.73$9,727
Dec 200617627956.656.92$11,901
Nov 200617326654.207.62$11,403
Oct 2006128454.906.01$1,763
Sep 200616328460.085.04$11,224
Aug 200615330868.717.34$12,773
Jul 200616025269.376.34$12,698
Jun 200615026966.286.38$11,659
May 200615326666.016.42$11,809
Apr 200616325964.397.36$12,402
Mar 200617326856.707.08$11,707
Feb 2006023457.597.75$1,814
Jan 200632227060.598.93$21,922
Dec 200518126254.9413.42$13,459
Nov 2005026854.6910.59$2,838
Oct 2005325158.3413.80$3,638
Sep 200517014761.4512.08$12,222
Aug 200517531861.519.80$13,880
Jul 200515832455.697.84$11,340
Jun 200516830852.337.38$11,065
May 2005029645.226.65$1,969
Apr 200516229149.207.36$10,112
Mar 200517330250.377.15$10,875
Feb 200517124845.226.31$9,298
Jan 200517324943.166.32$9,041
Dec 200416124339.866.75$8,058
Nov 200416925745.286.33$9,279
Oct 2004227349.706.52$1,878
Sep 200417427043.245.28$8,950
Aug 200416831142.375.55$8,844
Jul 200415431038.286.08$7,781
Jun 200417829136.106.43$8,298
May 200415432837.486.49$7,902
Apr 200416331234.475.86$7,446
Mar 200416532034.365.53$7,439
Feb 200417528532.455.51$7,249
Jan 2004130432.036.30$1,947
Dec 200316029830.266.30$6,719
Nov 200332429128.804.60$10,668
Oct 2003030328.174.76$1,442
Sep 200331730026.314.75$9,765
Aug 200317030929.765.13$6,644
Jul 200315731929.415.17$6,267
Jun 200316230928.565.98$6,475
May 200315322326.595.97$5,400
Apr 200317520626.675.41$5,781
Mar 200316418331.146.10$6,223
Feb 200315716233.487.93$6,540
Jan 200315419530.315.58$5,756
Dec 200216924826.914.85$5,752
Nov 200217823624.664.14$5,366
Oct 200216828326.464.23$5,642
Sep 200215926027.443.64$5,308
Aug 200216138125.963.16$5,385
Jul 200217137724.583.06$5,357
Jun 200216436923.733.34$5,124
May 200216528824.663.58$5,101
Apr 200232226423.653.51$8,543
Mar 200216119922.003.10$4,159
Feb 200217018218.222.38$3,530
Jan 200217729217.172.38$3,733
Dec 200133432916.932.36$6,433
Nov 200117830418.072.41$3,948
Oct 200117634719.782.53$4,359
Sep 200117522924.262.25$4,761
Aug 200135026924.873.05$9,526
Jul 200117714123.933.20$4,686
Jun 200116914424.563.82$4,701
May 200117726825.524.31$5,671
Apr 200118028424.685.34$5,958
Mar 200116028724.545.38$5,469
Feb 200117936527.755.77$7,072
Jan 200133148627.478.40$13,174
Dec 200018043126.889.12$8,770
Nov 200034538632.215.66$13,296
Oct 200030555431.235.15$12,376
Sep 200017951931.875.19$8,397
Aug 200035859629.644.54$13,317
Jul 200035161628.534.09$12,533
Jun 200018649129.304.40$7,609
May 200052173227.263.68$16,896
Apr 200017138224.513.12$5,382
Mar 200034351828.422.86$11,229
Feb 200017218527.622.73$5,255
Jan 200017640725.272.48$5,457
Dec 199934842724.282.42$9,484
Nov 199917240723.192.43$4,979
Oct 199917543920.982.80$4,902
Sep 199930144321.752.62$7,707
Aug 199930250719.262.88$7,274

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.

Aug 2017 — as filed, then multipliedworked
Oil                  118 bbl  × $ 45.37 =     $5,354
Casinghead gas         0 Mcf  × $  3.00 =         $0

────────────────────────────────────────────────────
Month total                                   $5,354

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/36278 is the state's own key, not one this site invented.