MUSTANG

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 39864District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$68.1 M
Nov 2009 – May 2026
Value, last 12 filed months
$2.2 M
at the published price for each month
Months reported
199
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
OilDisposition773,461 bbl$57,107,239
Casinghead gasProduction3,210,155 Mcf$10,981,886
Total$68,089,125

Wells on this lease (14)

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 32.2436, -102.2411. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.1 miles.

32.24384, -102.24137 · 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
14.3%
2 of 14 wells
With a plug date
14.3%
2 of 14 wells
Median depth
11,792 ft
14 wells filed one
Completion to plug
9.8 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
214.3%
A plug date is filed
214.3%
BothOn the schedule and plugged. Neither fact cancels the other.
214.3%
NeitherNo plug date, and not on the schedule.
1285.7%

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

Total depth in feet, 14 of 14 wells. Median 11,792 ft, with the middle half between 11,369 and 11,840 ft; the shallowest is 11,024 ft and the deepest 12,007 ft. The median is published rather than the mean, because a single mis-keyed depth moves a mean and cannot move a median.

When they were last completed

Last completion by decade, 14 of 14 wells, Nov 2009 – Dec 2014. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Nov 2009 – Dec 2014
14 of 14 wells
Plug dates filed
Mar 2017 – Aug 2022
2 of 14 wells; 12 filed none

Last completion to plug: a median of 9.8 years across the 2 wells that filed both dates, with the middle half between 8.6 years and 11.0 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

14 wells

42-00346633341611,348 ftDec 2014
42-00344252340511,431 ftJul 2014
42-00344140341111,331 ftApr 2013
42-00344256350311,330 ftFeb 2013
42-00343197341412,007 ftDec 2012
42-00344257340711,830 ftOct 2012
42-00344119341211,779 ftOct 2012
42-00344181340611,908 ftSep 2012
42-00343955341511,814 ftJul 2012
42-00342310340411,843 ftApr 2011
42-00342124340311,985 ftJan 2011
42-00341943340211,805 ftNov 2010
42-00341518350111,750 ftJun 2010Aug 2022Yes
42-00341097340111,024 ftNov 2009Mar 2017Yes

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 (199)

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

199 months

May 202698221,060106.413.05$168,640
Apr 20261,06721,78798.932.87$168,081
Mar 20261,24022,60989.753.15$182,496
Feb 20261,39018,69263.503.75$158,366
Jan 20261,33219,88659.138.00$237,808
Dec 20251,37420,99756.664.41$170,518
Nov 20251,39920,04458.593.93$160,669
Oct 20251,61722,00859.383.30$168,750
Sep 20251,84421,70662.743.08$182,480
Aug 20251,86322,14663.933.01$185,866
Jul 20251,90121,90766.743.32$199,499
Jun 20252,12920,98166.483.13$207,180
May 20251,22519,21160.553.23$136,270
Apr 20251,48021,13162.363.54$167,162
Mar 20251,43925,08867.704.27$204,504
Feb 20252,10624,33470.884.34$254,903
Jan 20252,28727,32374.324.28$286,876
Dec 20242,91326,54268.993.12$283,815
Nov 20243,10525,06469.052.20$269,502
Oct 20242,54926,60771.372.28$242,623
Sep 20243,05129,58769.612.36$282,334
Aug 20243,14031,53975.632.06$302,563
Jul 20243,54927,09079.932.15$341,823
Jun 20243,14922,72578.082.63$305,731
May 20243,52925,77378.812.20$334,781
Apr 20243,36923,91884.451.66$324,197
Mar 20243,24622,00680.301.55$294,656
Feb 20243,14919,56776.091.78$274,508
Jan 20243,72920,49773.023.30$339,884
Dec 20233,73415,18071.262.61$305,716
Nov 20233,02121,29277.892.81$295,084
Oct 20233,98123,56985.443.09$412,901
Sep 20234,11123,17089.042.74$429,414
Aug 20234,16315,89780.522.67$377,696
Jul 20235,17716,47274.852.64$431,014
Jun 20236,29718,07968.962.26$475,072
May 20235,03415,12570.622.23$389,191
Apr 20235,52914,93678.122.24$465,349
Mar 20235,61110,56072.852.39$434,033
Feb 20232,8943,79175.112.47$226,716
Jan 2023030776.533.39$1,040
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220287.185.86$12
Sep 20221,9556,07384.888.16$215,518
Aug 20223,52911,13394.529.13$435,174
Jul 20223,37011,394101.587.54$428,259
Jun 20223,63711,442115.097.98$509,857
May 20223,36813,255109.378.43$480,138
Apr 20222,57411,967104.226.84$350,088
Mar 20223,44113,163108.885.08$441,477
Feb 20223,91811,34991.054.86$411,877
Jan 20224,46513,91281.844.54$428,544
Dec 20213,77010,35171.323.90$309,236
Nov 20213,2349,48877.435.24$300,096
Oct 20212,0082,03679.795.71$171,852
Sep 2021823469.865.35$57,516
Aug 20210066.024.22$0
Jul 20210070.783.98$0
Jun 20211,2232,99169.493.38$95,098
May 20212,1215,88763.483.02$152,406
Apr 20212,1635,74760.362.76$146,411
Mar 20212,0775,71061.302.72$142,834
Feb 20211,3153,21257.805.55$93,827
Jan 20211,5053,89650.412.81$86,816
Dec 20201,4764,01844.642.68$76,639
Nov 20201,7295,17038.772.71$81,026
Oct 20202,1277,10136.972.48$96,235
Sep 20202,0587,47237.091.99$91,208
Aug 20202,7599,01239.982.39$131,799
Jul 20201,7977,79938.371.83$83,185
Jun 20201,8737,70734.901.69$78,395
May 20202,1177,25816.921.81$48,991
Apr 20201,3286,06814.751.80$30,537
Mar 20201,9457,45130.341.86$72,842
Feb 20202,0647,77649.881.98$118,354
Jan 20202,3518,92057.252.09$153,280
Dec 20192,2477,99859.012.30$151,026
Nov 20192,1958,21755.302.75$143,986
Oct 20191,6207,67153.472.42$105,174
Sep 20191,6177,48855.052.66$108,914
Aug 20192,27211,10053.112.30$146,244
Jul 20193,15612,75456.272.46$208,964
Jun 20192,46310,90752.782.49$157,169
May 20192,94211,57958.482.74$203,778
Apr 20193,01810,85462.632.75$218,873
Mar 20192,78810,21756.803.06$189,644
Feb 20192,87710,39750.852.79$175,326
Jan 20192,42111,44246.033.23$148,375
Dec 20183,07113,06246.594.19$197,748
Nov 20183,24512,61352.934.24$225,202
Oct 20182,75212,29361.443.40$210,855
Sep 20182,78412,27659.543.11$203,913
Aug 20183,18114,10559.403.07$232,205
Jul 20183,31913,80665.142.93$256,677
Jun 20182,77213,74060.183.08$209,096
May 20183,55914,84465.382.90$275,747
Apr 20183,44513,85563.842.90$260,119
Mar 20182,95114,03061.222.79$219,760
Feb 20182,79212,51361.782.77$207,102
Jan 20183,49213,78462.874.01$274,807
Dec 20173,09612,27457.272.92$213,167
Nov 20173,10512,38455.423.12$210,697
Oct 20173,25812,75449.292.98$198,641
Sep 20172,26612,93047.523.09$147,599
Aug 20173,32314,15345.373.00$193,286
Jul 20173,28514,46243.873.09$188,761
Jun 20172,96014,02442.493.09$169,066
May 20173,54416,38945.373.26$214,275
Apr 20173,67215,62247.933.21$226,171
Mar 20173,70715,73646.772.98$220,328
Feb 20172,97612,95450.452.95$188,387
Jan 20173,06313,46049.413.42$197,360
Dec 20164,09314,37448.763.72$253,087
Nov 20163,76914,46742.492.64$198,401
Oct 20163,99415,87246.193.09$233,531
Sep 20163,62715,76741.553.10$199,589
Aug 20164,24819,61341.442.92$233,392
Jul 20164,32719,78941.622.92$237,960
Jun 20164,30118,05445.352.69$243,540
May 20163,57016,78742.521.99$185,220
Apr 20163,33918,07036.561.99$158,052
Mar 20162,47920,91033.011.79$119,345
Feb 20165,00020,13426.472.06$173,899
Jan 20165,65423,14027.352.36$209,348
Dec 20155,46522,67132.362.00$222,221
Nov 20156,15721,61938.792.17$285,686
Oct 20156,08824,11243.552.43$323,642
Sep 20156,97023,84242.992.76$365,407
Aug 20155,58720,43140.162.87$283,062
Jul 20155,85623,19448.152.95$350,275
Jun 20154,97919,15656.152.88$334,795
May 20155,35417,74455.212.96$348,036
Apr 20155,59618,58849.822.71$329,102
Mar 20156,80318,76242.892.93$346,842
Feb 20157,30417,13744.662.98$377,200
Jan 20154,58814,30143.433.10$243,599
Dec 20145,06712,27054.693.59$321,180
Nov 20144,49112,45870.464.25$369,405
Oct 20145,02617,74178.303.90$462,743
Sep 20145,99019,33686.164.05$594,321
Aug 20145,71324,05889.394.04$607,762
Jul 20147,21621,04596.564.18$784,737
Jun 20148,09423,30498.164.74$904,895
May 20145,95421,63094.734.73$666,258
Apr 20146,37422,13395.944.81$717,962
Mar 20145,19720,78195.895.06$603,426
Feb 20144,98220,17997.406.19$610,195
Jan 20146,70426,18690.404.86$733,324
Dec 20137,57426,23491.824.35$809,680
Nov 20137,55727,00188.853.74$772,377
Oct 20138,62732,20697.423.78$962,160
Sep 20136,55628,550104.113.72$788,687
Aug 20138,13529,056104.253.52$950,427
Jul 20137,08326,674102.523.72$825,316
Jun 20138,84629,01894.403.93$949,202
May 201311,69734,00694.834.15$1,250,320
Apr 201310,06332,62493.964.28$1,085,235
Mar 201311,97731,73793.623.91$1,245,470
Feb 20138,00525,16291.233.42$816,348
Jan 201313,21338,57491.603.42$1,342,230
Dec 201214,17337,78786.773.42$1,359,029
Nov 201214,63539,07186.953.62$1,414,144
Oct 201211,69630,18689.383.40$1,148,011
Sep 20128,00119,54694.672.92$814,498
Aug 20125,52416,07992.662.91$558,614
Jul 20122,94911,46185.133.02$285,670
Jun 20123,58012,03579.822.52$316,072
May 20123,36410,51091.612.49$334,328
Apr 20121,51013,811101.652.00$181,069
Mar 20122,7349,443105.052.22$308,190
Feb 20123,65511,402101.102.57$398,826
Jan 20124,56514,49898.092.73$487,420
Dec 20115,10815,88396.873.24$546,269
Nov 20114,39414,37895.723.31$468,203
Oct 20113,75115,09484.983.65$373,831
Sep 20113,88316,30583.623.99$389,685
Aug 20113,63217,48083.404.15$375,439
Jul 20114,87721,32894.144.52$555,464
Jun 20116,93525,51692.904.64$762,653
May 20116,93727,09098.134.40$800,054
Apr 20115,48221,965105.964.33$676,053
Mar 20116,42424,21996.364.06$717,281
Feb 20116,40718,02085.644.18$624,019
Jan 20115,16212,33986.504.59$503,134
Dec 20105,29223,47885.734.35$555,760
Nov 20105,33630,86080.843.80$548,486
Oct 20102,87426,71678.103.51$318,203
Sep 20102,55921,70272.633.98$272,223
Aug 20104,68816,01873.684.42$416,201
Jul 20104,18815,39472.554.74$376,753
Jun 20103,4379,08770.364.91$286,448
May 20101,0822,12871.124.24$85,964
Apr 20101,4732,79981.694.12$131,869
Mar 20102,7115,18278.394.39$235,257
Feb 20102,9173,19473.585.44$232,016
Jan 20102,378074.365.96$176,828
Dec 20091,800071.445.48$128,592
Nov 20090074.593.75$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                  982 bbl  × $106.41 =   $104,495
Casinghead gas    21,060 Mcf  × $  3.05 =    $64,145

────────────────────────────────────────────────────
Month total                                 $168,640

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/39864 is the state's own key, not one this site invented.