MUSSELWHITE-CADDELL UNIT

Operated by BURK ROYALTY CO., LTD. (P-5 108799) in the SMYER, W. (WOLFCAMP) field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 66746District 8AField 84353910Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$3.4 M
Jan 1993 – May 2026
Value, last 12 filed months
$67 k
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 4 leases and 5 wells, and the rule below applies to all of them.

Discovered
1985-04-09
as the register files it
Field class
Oil
the register's own label
Between wells
no field rule filed
From a lease line
no field rule filed

The register flags this field for hydrogen sulphide. That is a poisonous gas that occurs naturally in some formations. The flag is a property of the field as the Commission records it. It is not a measurement taken at this lease, and it is not a statement that gas is escaping anywhere.

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
OilDisposition97,353 bbl$3,359,689
Casinghead gasProduction85,960 Mcf$86,028
Total$3,445,718

63,410 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 33.5722, -102.2785. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

33.57222, -102.27846 · 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
8,694 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 8,694 ft.

Completions filed
Sep 1991
1 of 1 wells

1 well

42-2193576618,694 ftSep 1991

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 2026164089.753.15$14,719
Feb 20260063.503.75$0
Jan 2026158059.138.00$9,343
Dec 20250056.664.41$0
Nov 2025161058.593.93$9,433
Oct 20250059.383.30$0
Sep 2025163062.743.08$10,227
Aug 20250063.933.01$0
Jul 2025191066.743.32$12,747
Jun 2025163066.483.13$10,836
May 20250060.553.23$0
Apr 2025164062.363.54$10,227
Mar 20250067.704.27$0
Feb 2025166070.884.34$11,766
Jan 2025170074.324.28$12,634
Dec 20240068.993.12$0
Nov 2024175069.052.20$12,084
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 2024168078.082.63$13,117
May 2024173078.812.20$13,634
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 2024182076.091.78$13,848
Jan 20240073.023.30$0
Dec 2023196071.262.61$13,967
Nov 20230077.892.81$0
Oct 2023186085.443.09$15,892
Sep 20230089.042.74$0
Aug 2023177080.522.67$14,252
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 2023352070.622.23$24,858
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 20221670115.097.98$19,220
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 2021168069.493.38$11,674
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 2020170014.751.80$2,508
Mar 20200030.341.86$0
Feb 2020162049.881.98$8,081
Jan 2020167057.252.09$9,561
Dec 20190059.012.30$0
Nov 2019172055.302.75$9,512
Oct 2019167053.472.42$8,929
Sep 2019168055.052.66$9,248
Aug 20190053.112.30$0
Jul 2019164056.272.46$9,228
Jun 2019172052.782.49$9,078
May 2019170058.482.74$9,942
Apr 2019166062.632.75$10,397
Mar 2019158056.803.06$8,974
Feb 20190050.852.79$0
Jan 2019167046.033.23$7,687
Dec 2018168046.594.19$7,827
Nov 2018331052.934.24$17,520
Oct 20180061.443.40$0
Sep 2018167059.543.11$9,943
Aug 2018165059.403.07$9,801
Jul 2018166065.142.93$10,813
Jun 2018169060.183.08$10,170
May 20180065.382.90$0
Apr 2018164063.842.90$10,470
Mar 20180061.222.79$0
Feb 2018169061.782.77$10,441
Jan 2018169062.874.01$10,625
Dec 20170057.272.92$0
Nov 2017170055.423.12$9,421
Oct 2017167049.292.98$8,231
Sep 20170047.523.09$0
Aug 2017164045.373.00$7,441
Jul 2017163043.873.09$7,151
Jun 2017164042.493.09$6,968
May 2017163045.373.26$7,395
Apr 2017163047.933.21$7,813
Mar 2017164046.772.98$7,670
Feb 2017162050.452.95$8,173
Jan 2017162049.413.42$8,004
Dec 20160048.763.72$0
Nov 20161554742.492.64$6,710
Oct 20161624746.193.09$7,628
Sep 20161624741.553.10$6,877
Aug 201604741.442.92$137
Jul 20161634741.622.92$6,922
Jun 20161674745.352.69$7,700
May 20161644742.521.99$7,067
Apr 20161644736.561.99$6,089
Mar 20161664733.011.79$5,564
Feb 201604726.472.06$97
Jan 20161594727.352.36$4,460
Dec 20151684732.362.00$5,531
Nov 20151674738.792.17$6,580
Oct 20151664743.552.43$7,343
Sep 20151664742.992.76$7,266
Aug 20151644740.162.87$6,721
Jul 20151684748.152.95$8,228
Jun 20151654756.152.88$9,400
May 20151614755.212.96$9,028
Apr 20151624749.822.71$8,198
Mar 20151654742.892.93$7,215
Feb 20151634744.662.98$7,419
Jan 20151624743.433.10$7,181
Dec 201404754.693.59$169
Nov 20141734770.464.25$12,389
Oct 20141704778.303.90$13,494
Sep 20141664786.164.05$14,493
Aug 20141654789.394.04$14,939
Jul 20141634796.564.18$15,936
Jun 20141634798.164.74$16,223
May 20141644794.734.73$15,758
Apr 20141624795.944.81$15,768
Mar 20141634795.895.06$15,868
Feb 20141644797.406.19$16,265
Jan 20141624790.404.86$14,873
Dec 20131694791.824.35$15,722
Nov 20131634788.853.74$14,658
Oct 20131364797.423.78$13,427
Sep 201316547104.113.72$17,353
Aug 201316747104.253.52$17,575
Jul 201316647102.523.72$17,193
Jun 20131654794.403.93$15,761
May 20131674794.834.15$16,032
Apr 20131654793.964.28$15,705
Mar 20131724793.623.91$16,287
Feb 20131634791.233.42$15,031
Jan 201304791.603.42$161
Dec 20121664786.773.42$14,565
Nov 201204786.953.62$170
Oct 201204789.383.40$160
Sep 20121654794.672.92$15,758
Aug 20121654792.662.91$15,426
Jul 20121684785.133.02$14,444
Jun 20121674779.822.52$13,448
May 20121674791.612.49$15,416
Apr 201217147101.652.00$17,476
Mar 2012047105.052.22$104
Feb 201215347101.102.57$15,589
Jan 201204798.092.73$129
Dec 20111694796.873.24$16,523
Nov 20111644795.723.31$15,854
Oct 20111694784.983.65$14,533
Sep 20111674783.623.99$14,152
Aug 201104783.404.15$195
Jul 20111724794.144.52$16,404
Jun 20111674792.904.64$15,732
May 20111704798.134.40$16,889
Apr 2011047105.964.33$204
Mar 20111704796.364.06$16,572
Feb 20111704785.644.18$14,755
Jan 20111634786.504.59$14,315
Dec 20101684785.734.35$14,607
Nov 20101654780.843.80$13,517
Oct 20101734778.103.51$13,676
Sep 20101744772.633.98$12,825
Aug 20101694773.684.42$12,660
Jul 20101714772.554.74$12,629
Jun 20101714770.364.91$12,262
May 20101704771.124.24$12,289
Apr 20101614781.694.12$13,346
Mar 20101714778.394.39$13,611
Feb 20101704773.585.44$12,764
Jan 20101654774.365.96$12,550
Dec 20091664771.445.48$12,117
Nov 20091664774.593.75$12,558
Oct 20091664772.544.11$12,235
Sep 20091654765.543.06$10,958
Aug 20091684767.423.22$11,478
Jul 20091674761.133.46$10,372
Jun 20091694766.163.90$11,364
May 20091704754.743.93$9,490
Apr 20091694746.773.59$8,073
Mar 20091694742.144.06$7,312
Feb 20093384732.814.63$11,308
Jan 200904735.865.37$252
Dec 20081644737.105.98$6,365
Nov 200804755.496.86$322
Oct 20081694775.246.92$13,041
Sep 200816847101.767.88$17,466
Aug 200833847114.228.48$39,005
Jul 2008047131.0811.39$535
Jun 200816847131.3313.03$22,676
May 200816547123.1711.57$20,867
Apr 200816247110.3110.45$18,362
Mar 200832747101.909.66$33,776
Feb 20081644792.538.77$15,587
Jan 20081754790.388.21$16,202
Dec 20071594788.337.30$14,388
Nov 20071634791.677.29$15,285
Oct 20073164782.856.92$26,506
Sep 20071634775.846.24$12,655
Aug 20071614769.066.39$11,419
Jul 20071624770.906.39$11,786
Jun 20071644762.007.55$10,523
May 20071624758.747.85$9,885
Apr 20074884759.617.81$29,457
Mar 200704756.927.30$343
Feb 20071614755.108.22$9,257
Jan 200704750.306.73$316
Dec 20061664756.656.92$9,729
Nov 20061674754.207.62$9,409
Oct 20063334754.906.01$18,564
Sep 20061634760.085.04$10,030
Aug 20061674768.717.34$11,820
Jul 200604769.376.34$298
Jun 20061654766.286.38$11,236
May 200604766.016.42$302
Apr 20061664764.397.36$11,035
Mar 20061644756.707.08$9,632
Feb 20061624757.597.75$9,694
Jan 20061644760.598.93$10,357
Dec 20051694754.9413.42$9,915
Nov 200504754.6910.59$498
Oct 20051674758.3413.80$10,391
Sep 20051674761.4512.08$10,830
Aug 20051564761.519.80$10,056
Jul 20051554755.697.84$9,001
Jun 200504752.337.38$347
May 20051504745.226.65$7,096
Apr 20051514749.207.36$7,775
Mar 200504750.377.15$336
Feb 20051634745.226.31$7,668
Jan 20051594743.166.32$7,160
Dec 20043224739.866.75$13,152
Nov 200404745.286.33$298
Oct 20043204749.706.52$16,210
Sep 200404743.245.28$248
Aug 20043304742.375.55$14,243
Jul 20041654738.286.08$6,602
Jun 20041684736.106.43$6,367
May 20041754737.486.49$6,864
Apr 20043234734.475.86$11,409
Mar 20041634734.365.53$5,861
Feb 20041684732.455.51$5,711
Jan 20041684732.036.30$5,677
Dec 20033454730.266.30$10,736
Nov 20031604728.804.60$4,824
Oct 20031674728.174.76$4,928
Sep 20031774726.314.75$4,880
Aug 20033424729.765.13$10,419
Jul 20031624729.415.17$5,007
Jun 20031614728.565.98$4,879
May 20033274726.595.97$8,976
Apr 20033294726.675.41$9,029
Mar 20031594731.146.10$5,238
Feb 20031694733.487.93$6,031
Jan 20031614730.315.58$5,142
Dec 20023414726.914.85$9,404
Nov 20021664724.664.14$4,288
Oct 20021814726.464.23$4,988
Sep 200204727.443.64$171
Aug 20021764725.963.16$4,718
Jul 200233812624.583.06$8,694
Jun 20021579323.733.34$4,036
May 20020924.663.58$32
Apr 200234612623.653.51$8,625
Mar 200216812622.003.10$4,087
Feb 200216612618.222.38$3,324
Jan 200234312617.172.38$6,189
Dec 200117412616.932.36$3,244
Nov 200117612618.072.41$3,483
Oct 200116912619.782.53$3,661
Sep 200117912624.262.25$4,626
Aug 200133812624.873.05$8,791
Jul 200116712623.933.20$4,399
Jun 200116612624.563.82$4,559
May 200134812625.524.31$9,424
Apr 200117112624.685.34$4,893
Mar 200133512624.545.38$8,898
Feb 200116812627.755.77$5,389
Jan 200117325227.478.40$6,869
Dec 2000025226.889.12$2,299
Nov 200034525232.215.66$12,538
Oct 200017825231.235.15$6,856
Sep 200033425231.875.19$11,952
Aug 200016325229.644.54$5,976
Jul 200034925228.534.09$10,988
Jun 200017025229.304.40$6,089
May 200034225227.263.68$10,250
Apr 200031925224.513.12$8,604
Mar 200033725228.422.86$10,298
Feb 200016925227.622.73$5,355
Jan 200050425225.272.48$13,361
Dec 199934525224.282.42$8,987
Nov 199917125223.192.43$4,579
Oct 199933225220.982.80$7,672
Sep 199933625221.752.62$7,968
Aug 199934625219.262.88$7,389
Jul 199933225217.892.37$6,537
Jun 199934125215.942.36$6,031
May 199935225215.792.32$6,143
Apr 199933725215.102.21$5,645
Mar 199950125212.471.84$6,711
Feb 19993462529.981.82$3,911
Jan 199934025210.381.90$4,008
Dec 19983382529.201.77$3,556
Nov 199867625210.892.19$7,912
Oct 199816825212.421.97$2,583
Sep 199833825212.592.08$4,780
Aug 199851725211.301.91$6,323
Jul 199834625211.742.24$4,626
Jun 199834825211.242.24$4,475
May 199869325212.622.21$9,302
Apr 199835125213.042.51$5,208
Mar 199853225212.802.31$7,392
Feb 199853325213.952.30$8,015
Jan 199854625214.702.15$8,569
Dec 199753325216.322.41$9,306
Nov 199753825218.193.09$10,564
Oct 199736225219.253.15$7,762
Sep 199735525217.742.95$7,042
Aug 199771225217.862.55$13,360
Jul 199735825217.582.25$6,860
Jun 199752225217.242.26$9,568
May 199735925218.972.31$7,392
Apr 199735925217.882.08$6,944
Mar 199751725218.951.94$10,286
Feb 199717725220.492.21$4,183
Jan 199772325223.483.54$17,868
Dec 199651225223.32$11,940
Nov 199636225221.97$7,953
Oct 199653025223.31$12,354
Sep 199635125222.22$7,799
Aug 199673325220.26$14,851
Jul 199634225219.55$6,686
Jun 199669425218.73$12,999
May 199635625219.43$6,917
Apr 199634425221.51$7,399
Mar 199669125219.38$13,392
Feb 199635125216.98$5,960
Jan 199635025217.07$5,975
Dec 199572825217.19$12,514
Nov 199535025216.00$5,600
Oct 199536325215.43$5,601
Sep 199566725216.18$10,792
Aug 199539425215.92$6,272
Jul 199570625215.24$10,759
Jun 199533925216.41$5,563
May 199576425217.56$13,416
Apr 19955025217.73$887
Mar 199537625216.44$6,181
Feb 199523425216.58$3,880
Jan 199535225215.92$5,604
Dec 199445925215.03$6,899
Nov 199451525215.90$8,189
Oct 199435325215.58$5,500
Sep 199426425215.29$4,037
Aug 19941,05328116.13$16,985
Jul 19941781,95517.56$3,126
Jun 19946923,51817.09$11,826
May 19946343,31315.88$10,068
Apr 19943533,36714.14$4,991
Mar 19948892,79712.46$11,077
Feb 19947002,84212.50$8,750
Jan 19947153,00612.66$9,052
Dec 19937042,86212.33$8,680
Nov 19931,0712,30014.49$15,519
Oct 19931,0622,87515.85$16,833
Sep 19931,4353,84315.03$21,568
Aug 19931,5744,40615.66$24,649
Jul 19932,1652,84115.46$33,471
Jun 19932,0333,58916.79$34,134
May 19932,3703,07017.68$41,902
Apr 19931,7432,78918.05$31,461
Mar 19932,4432,61318.14$44,316
Feb 19932,0272,46317.90$36,283
Jan 19932,6791,62416.93$45,355

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.

Mar 2026 — as filed, then multipliedworked
Oil                  164 bbl  × $ 89.75 =    $14,719
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                  $14,719

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. 8A/O/66746 is the state's own key, not one this site invented.