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CITY NAIL

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 51179District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$4.3 M
Apr 2018 – May 2026
Value, last 12 filed months
$254 k
at the published price for each month
Months reported
98
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
OilDisposition60,300 bbl$3,784,802
Casinghead gasProduction149,159 Mcf$497,501
Total$4,282,303

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 32.1098, -102.0850. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

32.10981, -102.08500 · 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
11,881 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 11,881 ft.

Completions filed
Apr 2018
1 of 1 wells

1 well

42-31740848111,881 ftApr 2018——

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 (98)

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

98 months

May 2026211871106.413.05$25,105
Apr 20269371298.932.87$11,244
Mar 202628981889.753.15$28,514
Feb 202629871663.503.75$21,608
Jan 202625161359.138.00$19,744
Dec 202529659556.664.41$19,397
Nov 202529685958.593.93$20,715
Oct 20252951,16459.383.30$21,364
Sep 202529462562.743.08$20,369
Aug 202528053163.933.01$19,501
Jul 20253671,04166.743.32$27,945
Jun 20252221,23666.483.13$18,626
May 20252521,11760.553.23$18,869
Apr 20253811,27262.363.54$28,266
Mar 20253461,29967.704.27$28,969
Feb 202534684670.884.34$28,197
Jan 202537990574.324.28$32,039
Dec 202417223768.993.12$12,606
Nov 20242601,01369.052.20$20,180
Oct 202443678671.372.28$32,911
Sep 20243031,03469.612.36$23,537
Aug 202429989275.632.06$24,454
Jul 202422996279.932.15$20,369
Jun 202430999978.082.63$26,758
May 202431794678.812.20$27,062
Apr 202432790984.451.66$29,123
Mar 202428090380.301.55$23,879
Feb 20245381,08776.091.78$42,875
Jan 202439390873.023.30$31,691
Dec 20234781,22171.262.61$37,250
Nov 20233611,18177.892.81$31,434
Oct 20239501,25785.443.09$85,049
Sep 20233221,27489.042.74$32,155
Aug 20232761,07480.522.67$25,094
Jul 20233871,03374.852.64$31,696
Jun 20233441,01768.962.26$26,019
May 202342995470.622.23$32,421
Apr 202347499078.122.24$39,244
Mar 202355887972.852.39$42,754
Feb 202330582275.112.47$24,935
Jan 202347831576.533.39$37,648
Dec 20226891,04976.415.73$58,656
Nov 20222861,12385.005.65$30,651
Oct 20223651,10287.185.86$38,283
Sep 20225301,42684.888.16$56,628
Aug 20224071,32394.529.13$50,545
Jul 20223561,393101.587.54$46,669
Jun 20224981,311115.097.98$67,773
May 20226641,671109.378.43$86,713
Apr 2022207383104.226.84$24,192
Mar 20225381,250108.885.08$64,923
Feb 202225190891.054.86$27,265
Jan 202242988781.844.54$39,134
Dec 20214311,43571.323.90$36,334
Nov 20214871,49577.435.24$45,538
Oct 20216501,63879.795.71$61,223
Sep 20215241,48969.865.35$44,574
Aug 20215201,56566.024.22$40,936
Jul 20215871,53970.783.98$47,676
Jun 20214321,42969.493.38$34,851
May 20214951,61163.483.02$36,284
Apr 20217111,70960.362.76$47,630
Mar 20215091,91861.302.72$36,413
Feb 202132586857.805.55$23,601
Jan 20217481,60450.412.81$42,214
Dec 20202511,69544.642.68$15,740
Nov 20205861,48938.772.71$26,749
Oct 20204311,35636.972.48$19,295
Sep 20206791,28337.091.99$27,739
Aug 20207521,47239.982.39$33,576
Jul 20208111,25038.371.83$33,399
Jun 20206433,20434.901.69$27,856
May 20205561,49616.921.81$12,122
Apr 20206662,05214.751.80$13,526
Mar 20208802,52130.341.86$31,379
Feb 20201,0312,08649.881.98$55,558
Jan 20201,2142,28157.252.09$74,280
Dec 20191,1541,86459.012.30$72,393
Nov 20195801,36155.302.75$35,818
Oct 20197302,04253.472.42$43,972
Sep 20196651,71655.052.66$41,168
Aug 20198151,74953.112.30$47,315
Jul 20196591,80756.272.46$41,527
Jun 20197621,80352.782.49$44,710
May 20191,1201,89958.482.74$70,701
Apr 20196312,35362.632.75$45,992
Mar 20191,2993,59456.803.06$84,788
Feb 20191,1053,35850.852.79$65,566
Jan 20191,2863,57246.033.23$70,726
Dec 20181,3212,88246.594.19$73,608
Nov 20181,7863,57252.934.24$109,668
Oct 20181,5721,91761.443.40$103,098
Sep 20181,5555,00259.543.11$108,131
Aug 20182,2774,92759.403.07$150,363
Jul 20182,2234,58765.142.93$158,255
Jun 20182,2533,78960.183.08$147,244
May 20182,0513,14165.382.90$143,206
Apr 2018196063.842.90$12,513

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                  211 bbl  × $106.41 =    $22,453
Casinghead gas       871 Mcf  × $  3.05 =     $2,653

────────────────────────────────────────────────────
Month total                                  $25,105

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/51179 is the state's own key, not one this site invented.