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NAIL RANCH "12"

Operated by OXYROCK OPERATING, LLC (P-5 102324) 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 40862District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$64.8 M
Jan 2011 – May 2026
Value, last 12 filed months
$1.5 M
at the published price for each month
Months reported
185
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) field

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
OilDisposition919,903 bbl$56,636,769
Casinghead gasProduction2,528,478 Mcf$8,126,542
Total$64,763,311

Wells on this lease (15)

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 32.1068, -101.9791. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.8 miles.

32.10695, -101.97943 · 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
13.3%
2 of 15 wells
With a plug date
13.3%
2 of 15 wells
Median depth
11,558 ft
15 wells filed one
Completion to plug
8.3 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
213.3%
A plug date is filed
213.3%
BothOn the schedule and plugged. Neither fact cancels the other.
213.3%
NeitherNo plug date, and not on the schedule.
1386.7%

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, 15 of 15 wells. Median 11,558 ft, with the middle half between 11,487 and 11,572 ft; the shallowest is 10,675 ft and the deepest 11,638 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, 15 of 15 wells, Jan 2011 – Jan 2015. This is the LAST completion filed on each wellbore, not the first — a well recompleted in 2019 counts once, in the 2010s.

Completions filed
Jan 2011 – Jan 2015
15 of 15 wells
Plug dates filed
Aug 2020 – Aug 2021
2 of 15 wells; 13 filed none

Last completion to plug: a median of 8.3 years across the 2 wells that filed both dates, with the middle half between 8.2 years and 8.4 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

15 wells

42-317394281411,569 ftJan 2015——
42-317394291511,470 ftDec 2014——
42-317394271311,589 ftDec 2014——
42-317394221211,525 ftNov 2014——
42-317393101111,503 ftNov 2014——
42-317394211011,638 ftNov 2014——
42-31739406711,560 ftOct 2014——
42-31739418911,594 ftSep 2014——
42-31739417811,558 ftAug 2014——
42-31739400611,575 ftAug 2014——
42-31739253511,569 ftJul 2014——
42-31737900311,538 ftAug 2013Aug 2021Yes
42-31737846111,238 ftSep 2012——
42-31737070210,863 ftJan 2012Aug 2020Yes
42-31736061410,675 ftJan 2011——

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 (185)

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

185 months

May 20261,6604,470106.413.05$190,256
Apr 20261,3034,49898.932.87$141,814
Mar 20261,4044,68489.753.15$140,761
Feb 20261,8774,01163.503.75$134,232
Jan 20261,0434,78359.138.00$99,927
Dec 20251,6424,80256.664.41$114,229
Nov 20251,7075,55758.593.93$121,832
Oct 20251,6558,31359.383.30$125,747
Sep 20251,6834,79162.743.08$120,333
Aug 20251,3854,81563.933.01$103,059
Jul 20251,3345,05666.743.32$105,793
Jun 20251,8256,66366.483.13$142,173
May 20252,1817,04160.553.23$154,818
Apr 20252,0776,82762.363.54$153,711
Mar 20252,9077,12767.704.27$227,224
Feb 20251,3504,28270.884.34$114,275
Jan 20252,5457,26574.324.28$220,229
Dec 20242,3436,42668.993.12$181,701
Nov 20242,1977,10069.052.20$167,312
Oct 20242,4968,29371.372.28$197,059
Sep 20242,2947,95869.612.36$178,501
Aug 20242,3238,14075.632.06$192,486
Jul 20242,1088,02979.932.15$185,727
Jun 20242,1997,52378.082.63$191,513
May 20242,6748,65278.812.20$229,759
Apr 20242,7208,67784.451.66$244,101
Mar 20242,7998,73480.301.55$238,255
Feb 20242,9578,49076.091.78$240,141
Jan 20242,7268,59073.023.30$227,379
Dec 20232,8828,69071.262.61$228,058
Nov 20233,0208,62277.892.81$259,435
Oct 20232,9669,36085.443.09$282,312
Sep 20232,4789,25489.042.74$245,951
Aug 20232,7628,77180.522.67$245,840
Jul 20232,5949,08374.852.64$218,156
Jun 20232,6738,95468.962.26$204,553
May 20232,7558,90870.622.23$214,400
Apr 20232,6309,11278.122.24$225,846
Mar 20232,7779,48972.852.39$225,013
Feb 20232,4828,33575.112.47$206,974
Jan 20232,8848,47976.533.39$249,437
Dec 20222,5177,92676.415.73$237,733
Nov 20222,8178,97785.005.65$290,131
Oct 20222,6999,29287.185.86$289,785
Sep 20222,4238,79184.888.16$277,431
Aug 20222,7519,76894.529.13$349,179
Jul 20222,5499,449101.587.54$330,193
Jun 20222,8588,919115.097.98$400,076
May 20222,6499,609109.378.43$370,754
Apr 20222,7979,435104.226.84$356,016
Mar 20223,1629,783108.885.08$393,941
Feb 20222,7018,31691.054.86$286,332
Jan 20222,9519,52581.844.54$284,731
Dec 20213,2239,66771.323.90$267,557
Nov 20212,9859,38677.435.24$280,282
Oct 20212,8129,78379.795.71$280,268
Sep 20213,0029,62269.865.35$261,206
Aug 20212,9259,97966.024.22$235,226
Jul 20213,19910,25270.783.98$267,250
Jun 20212,93710,44869.493.38$239,413
May 20213,11410,78663.483.02$230,225
Apr 20213,2889,96760.362.76$225,957
Mar 20213,27610,24361.302.72$228,648
Feb 20214,3438,90957.805.55$300,452
Jan 20213,27110,68650.412.81$194,922
Dec 20203,47010,28044.642.68$182,405
Nov 20203,2459,99638.772.71$152,864
Oct 20203,24310,86636.972.48$146,824
Sep 20203,23511,15237.091.99$142,190
Aug 20203,27011,13339.982.39$157,288
Jul 20203,31611,59938.371.83$148,404
Jun 20203,20211,45734.901.69$131,116
May 20203,86311,99516.921.81$87,130
Apr 20203,19011,46714.751.80$67,743
Mar 20203,35011,05130.341.86$122,152
Feb 20203,57811,53549.881.98$201,318
Jan 20203,99612,94657.252.09$255,890
Dec 20193,89912,58759.012.30$259,085
Nov 20193,88112,43355.302.75$248,819
Oct 20194,16112,84153.472.42$253,545
Sep 20193,80811,93655.052.66$241,348
Aug 20193,74713,05753.112.30$229,091
Jul 20193,46913,09256.272.46$227,408
Jun 20193,63113,04352.782.49$224,137
May 20193,71311,46058.482.74$248,540
Apr 20194,36012,29962.632.75$306,898
Mar 20194,55813,91156.803.06$301,491
Feb 20194,65511,11650.852.79$267,745
Jan 20195,49013,15946.033.23$295,184
Dec 20185,11510,76046.594.19$283,343
Nov 20185,34113,85252.934.24$341,393
Oct 20185,33113,34461.443.40$372,881
Sep 20185,72216,15259.543.11$390,888
Aug 20185,27315,33359.403.07$360,236
Jul 20185,22815,13365.142.93$384,920
Jun 20185,38513,90160.183.08$366,842
May 20185,57312,62765.382.90$400,991
Apr 20185,81514,61363.842.90$413,619
Mar 20185,66415,45361.222.79$389,815
Feb 20185,56014,62461.782.77$383,949
Jan 20186,18915,46362.874.01$451,099
Dec 20176,12717,22657.272.92$401,219
Nov 20176,05317,61755.423.12$390,393
Oct 20176,53418,81849.292.98$378,208
Sep 20176,12918,52447.523.09$348,439
Aug 20176,78119,15245.373.00$365,194
Jul 20176,42118,96443.873.09$340,236
Jun 20176,22619,93842.493.09$326,097
May 20176,97420,12445.373.26$382,083
Apr 20176,61519,58847.933.21$379,966
Mar 20177,54121,42446.772.98$416,615
Feb 20177,53119,01250.452.95$436,074
Jan 20177,47817,73149.413.42$430,107
Dec 20168,81319,16148.763.72$501,055
Nov 20169,87822,40042.492.64$478,950
Oct 20169,80621,57546.193.09$519,612
Sep 20163,62715,72341.553.10$199,453
Aug 20167,59827,37641.442.92$394,918
Jul 20168,74428,88041.622.92$448,380
Jun 20168,70828,23445.352.69$470,740
May 20166,90626,79942.521.99$347,001
Apr 20167,50319,51236.561.99$313,159
Mar 20169,31128,35033.011.79$358,216
Feb 20169,60227,92426.472.06$311,790
Jan 201610,51230,41827.352.36$359,422
Dec 20158,92734,07932.362.00$357,084
Nov 201511,81736,65638.792.17$537,827
Oct 201512,13640,65143.552.43$627,166
Sep 201512,55540,17642.992.76$650,562
Aug 201513,57142,55240.162.87$667,242
Jul 201514,55541,98448.152.95$824,469
Jun 201515,54346,97156.152.88$1,008,150
May 201517,35149,51455.212.96$1,104,285
Apr 201521,59855,28449.822.71$1,225,642
Mar 201524,71456,27542.892.93$1,225,134
Feb 201524,75350,29244.662.98$1,255,148
Jan 201525,52740,80443.433.10$1,235,156
Dec 201419,76638,18754.693.59$1,218,146
Nov 201416,31525,57070.464.25$1,258,274
Oct 201411,80319,81778.303.90$1,001,480
Sep 201412,84720,82786.164.05$1,191,152
Aug 20145,23311,36689.394.04$513,641
Jul 20143,5258,90096.564.18$377,572
Jun 20142,13010,80698.164.74$260,268
May 20143,44213,39094.734.73$389,349
Apr 20143,76512,13095.944.81$419,549
Mar 20144,00111,97095.895.06$444,186
Feb 20142,5106,61697.406.19$285,440
Jan 20145,02419,23390.404.86$547,656
Dec 20133,75512,15591.824.35$397,713
Nov 20135,23316,25388.853.74$525,710
Oct 20136,05115,40597.423.78$647,709
Sep 20139,87122,938104.113.72$1,112,947
Aug 20133,6678,005104.253.52$410,483
Jul 20132,96311,452102.523.72$346,342
Jun 20133,1678,19594.403.93$331,199
May 20133,2679,97094.834.15$351,176
Apr 20133,5138,34993.964.28$365,837
Mar 20133,7398,32993.623.91$382,635
Feb 20132,8486,42891.233.42$281,806
Jan 20132,6695,68591.603.42$263,923
Dec 20123,5517,02286.773.42$332,137
Nov 20124,79610,75886.953.62$456,010
Oct 20125,0605,27989.383.40$470,210
Sep 20122,2024,32594.672.92$221,085
Aug 20122,9638,64992.662.91$299,704
Jul 20123,3698,43185.133.02$312,271
Jun 20122,6067,41979.822.52$226,700
May 20123,0145,63991.612.49$290,144
Apr 20123,5357,812101.652.00$374,932
Mar 20124,4069,249105.052.22$483,402
Feb 20126,38810,522101.102.57$672,871
Jan 20122,2306,43198.092.73$236,324
Dec 20111,6783,80196.873.24$174,862
Nov 20111,1101,92995.723.31$112,637
Oct 20112,5684,71084.983.65$235,413
Sep 20112,1974,50783.623.99$201,677
Aug 20111,9894,42083.404.15$184,223
Jul 20112,3763,99294.144.52$241,709
Jun 20112,3554,94392.904.64$241,714
May 20113,1116,47298.134.40$333,790
Apr 20113,3277,263105.964.33$384,002
Mar 20114,9659,26496.364.06$516,015
Feb 20114,0736,99285.644.18$378,038
Jan 20113731,12786.504.59$37,436

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                1,660 bbl  × $106.41 =   $176,641
Casinghead gas     4,470 Mcf  × $  3.05 =    $13,615

────────────────────────────────────────────────────
Month total                                 $190,256

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/40862 is the state's own key, not one this site invented.