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PRESTON 18I

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) in the SPRABERRY (TREND AREA) R 40 EXC field. Every figure below is a volume the Railroad Commission published, multiplied by a monthly price you can check.

Oil lease lease 50181District 08Field 85280301Hydrogen sulphide fieldOilCasinghead gasSaveExport
Value, all time
$30.4 M
Feb 2018 – May 2026
Value, last 12 filed months
$640 k
at the published price for each month
Months reported
100
no gaps in the span
Streams
2
oil, casinghead gas

The SPRABERRY (TREND AREA) R 40 EXC 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 581 leases and 1,079 wells, and the rule below applies to all of them.

Discovered
2013-12-18
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 2016-03-08.

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.

The Commission's schedule remark for this field reads: “DESIGNATED AS UFT FIELD PER DOCKET 01-0299858”

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
OilDisposition388,472 bbl$22,787,756
Casinghead gasProduction2,237,661 Mcf$7,614,577
Total$30,402,334

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 31.7370, -101.8483. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.73697, -101.84829 · 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
8,983 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 8,983 ft.

Completions filed
Feb 2018
1 of 1 wells

1 well

42-329412779H8,983 ftFeb 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 (100)

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

100 months

May 202645611,144106.413.05$82,466
Apr 2026722,86298.932.87$15,336
Mar 2026244,44389.753.15$16,147
Feb 2026668,19563.503.75$34,925
Jan 20262331,59259.138.00$26,510
Dec 20253754,76556.664.41$42,277
Nov 202573010,09458.593.93$82,404
Oct 20259019,49559.383.30$84,881
Sep 20257576,87062.743.08$68,633
Aug 20257135,85963.933.01$63,246
Jul 20256316,02666.743.32$62,090
Jun 20256266,33766.483.13$61,443
May 20255708,48860.553.23$61,949
Apr 20258817,21062.363.54$80,485
Mar 20256505,57567.704.27$67,801
Feb 20255694,43770.884.34$59,591
Jan 20256665,92374.324.28$74,840
Dec 20245814,76868.993.12$54,966
Nov 20244362,95169.052.20$36,593
Oct 20246073,76971.372.28$51,920
Sep 20246253,70969.612.36$52,276
Aug 20245552,08075.632.06$46,267
Jul 20244226,69779.932.15$48,106
Jun 202439411,06278.082.63$59,901
May 20244668,21378.812.20$54,781
Apr 20249419,17884.451.66$94,696
Mar 20245586,16880.301.55$54,338
Feb 202457312,19176.091.78$65,344
Jan 202445414,24673.023.30$80,130
Dec 202364414,51771.262.61$83,791
Nov 202393016,22377.892.81$117,985
Oct 20231,11315,93385.443.09$144,284
Sep 20231,21919,44589.042.74$161,723
Aug 202390215,83580.522.67$114,954
Jul 202386520,85574.852.64$119,840
Jun 202336917,85268.962.26$65,765
May 202352120,43570.622.23$82,310
Apr 202378422,99078.122.24$112,692
Mar 20231,12321,08372.852.39$132,266
Feb 202383318,99275.112.47$109,395
Jan 20231,07321,35976.533.39$154,475
Dec 20221,13725,07676.415.73$230,541
Nov 20221,02623,04785.005.65$217,338
Oct 20221,27923,46787.185.86$249,108
Sep 20221,27925,32284.888.16$315,282
Aug 20221,48524,60294.529.13$364,909
Jul 20221,50228,359101.587.54$366,459
Jun 20221,54829,103115.097.98$410,320
May 20221,46424,721109.378.43$368,591
Apr 20221,82323,693104.226.84$351,996
Mar 20221,53022,617108.885.08$281,399
Feb 20221,17920,40391.054.86$206,483
Jan 20221,70424,29381.844.54$249,689
Dec 20211,87925,86571.323.90$234,861
Nov 20211,93526,07477.435.24$286,373
Oct 20212,16232,67679.795.71$359,212
Sep 20212,09622,70169.865.35$267,898
Aug 20212,40724,89966.024.22$263,999
Jul 20212,42123,44570.783.98$264,718
Jun 20212,20321,84069.493.38$226,919
May 20212,42423,44363.483.02$224,619
Apr 20212,65224,92560.362.76$228,828
Mar 20212,86025,33361.302.72$244,146
Feb 20211,97620,28257.805.55$226,736
Jan 20211,95023,26050.412.81$163,666
Dec 20203,04037,97644.642.68$237,309
Nov 20202,88035,28538.772.71$207,159
Oct 20203,20434,16436.972.48$203,125
Sep 20203,44634,56637.091.99$196,634
Aug 20203,51635,95239.982.39$226,319
Jul 20203,80239,94538.371.83$218,787
Jun 20204,26439,73434.901.69$215,976
May 20204,19835,65316.921.81$135,731
Apr 20203,83534,17514.751.80$118,231
Mar 20204,54237,86630.341.86$208,092
Feb 20204,94135,77149.881.98$317,308
Jan 20205,71538,41157.252.09$407,645
Dec 20195,88135,18759.012.30$428,121
Nov 20195,56533,16955.302.75$398,982
Oct 20196,29839,38453.472.42$432,006
Sep 20196,56039,78255.052.66$466,840
Aug 20197,12638,42953.112.30$467,016
Jul 20197,12338,43656.272.46$495,366
Jun 20198,08841,59252.782.49$530,499
May 20199,11843,07458.482.74$651,257
Apr 20199,41839,32062.632.75$698,007
Mar 201910,91139,79156.803.06$741,589
Feb 201910,50235,12350.852.79$632,098
Jan 201913,00740,54946.033.23$729,612
Dec 201815,03839,94146.594.19$867,791
Nov 201816,49543,23152.934.24$1,056,260
Oct 201818,57242,75061.443.40$1,286,332
Sep 201814,43929,02659.543.11$949,911
Aug 201813,38331,64059.403.07$891,976
Jul 20189,45727,27865.142.93$696,005
Jun 201815,26824,84560.183.08$995,274
May 201818,58325,57565.382.90$1,289,145
Apr 201822,19427,64563.842.90$1,497,058
Mar 201827,72932,79861.222.79$1,788,972
Feb 201850528661.782.77$31,990

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                  456 bbl  × $106.41 =    $48,523
Casinghead gas    11,144 Mcf  × $  3.05 =    $33,943

────────────────────────────────────────────────────
Month total                                  $82,466

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/50181 is the state's own key, not one this site invented.