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MARY 18

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 18593District 7CField 85279201OilCasinghead gasSaveExport
Value, all time
$67.5 M
Nov 2013 – May 2026
Value, last 12 filed months
$632 k
at the published price for each month
Months reported
151
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 721 leases and 1,413 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 2024-02-01.

The Commission's schedule remark for this field reads: “ALLOCATION FORMULA EFFECTIVE 02/01/2024.”

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
OilDisposition934,950 bbl$51,604,752
Casinghead gasProduction4,898,018 Mcf$15,909,075
Total$67,513,827

Wells on this lease (8)

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 31.6005, -102.0165. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.0 miles.

31.59908, -102.01569 · 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
62.5%
5 of 8 wells
With a plug date
62.5%
5 of 8 wells
Median depth
11,805 ft
8 wells filed one
Completion to plug
8.3 years
median over 5 wells

What the state filed about each well

On the RRC proration schedule
562.5%
A plug date is filed
562.5%
BothOn the schedule and plugged. Neither fact cancels the other.
562.5%
NeitherNo plug date, and not on the schedule.
337.5%

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, 8 of 8 wells. Median 11,805 ft, with the middle half between 11,332 and 11,815 ft; the shallowest is 9,702 ft and the deepest 11,859 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, 8 of 8 wells, Nov 2013 – Feb 2016. 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 2013 – Feb 2016
8 of 8 wells
Plug dates filed
Aug 2021 – Apr 2023
5 of 8 wells; 3 filed none

Last completion to plug: a median of 8.3 years across the 5 wells that filed both dates, with the middle half between 8.0 years and 8.5 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

8 wells

42-461401984208H9,702 ftFeb 2016——
42-461395251HB9,928 ftAug 2014——
42-46139431811,808 ftJul 2014Jul 2022Yes
42-46139334711,834 ftJun 2014Sep 2022Yes
42-46139192411,807 ftMay 2014Nov 2022Yes
42-46139215511,800 ftMar 2014——
42-46139029311,802 ftJan 2014Aug 2021Yes
42-46138866111,859 ftNov 2013Apr 2023Yes

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 (151)

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

151 months

May 20264054,988106.413.05$58,289
Apr 20263644,58998.932.87$49,180
Mar 20264595,24289.753.15$57,705
Feb 20263122,36463.503.75$28,678
Jan 20265374,28459.138.00$66,016
Dec 20256104,81556.664.41$55,813
Nov 202538782658.593.93$25,918
Oct 20256934,27759.383.30$55,285
Sep 20254447,11562.743.08$49,749
Aug 20255767,68163.933.01$59,980
Jul 20257326,45166.743.32$70,240
Jun 20255416,02766.483.13$54,822
May 20255734,27860.553.23$48,523
Apr 20253423,27162.363.54$32,917
Mar 20255904,58267.704.27$59,500
Feb 20259466,40370.884.34$94,847
Jan 20257406,05374.324.28$80,896
Dec 202499712,08668.993.12$106,508
Nov 202494313,10169.052.20$93,916
Oct 20248108,29971.372.28$76,743
Sep 20247326,98469.612.36$67,467
Aug 202461011,98075.632.06$70,857
Jul 20241,00121,98179.932.15$127,194
Jun 20241,02119,23878.082.63$130,392
May 20241,08318,41578.812.20$125,836
Apr 20241,03111,60284.451.66$106,318
Mar 20241,23514,71480.301.55$121,906
Feb 202497813,00376.091.78$97,609
Jan 20241,04914,44673.023.30$124,236
Dec 20231,2018,56871.262.61$107,952
Nov 20239697,94277.892.81$97,773
Oct 20231,01710,83185.443.09$120,331
Sep 20231,92218,97289.042.74$223,024
Aug 20231,71116,76180.522.67$182,570
Jul 20231,10714,11074.852.64$120,135
Jun 20239447,96368.962.26$83,083
May 20238664,56070.622.23$71,314
Apr 20231,77813,42778.122.24$168,944
Mar 20231,81716,61772.852.39$172,136
Feb 20231,46415,84675.112.47$149,032
Jan 20231,61518,86376.533.39$187,499
Dec 20221,97019,53576.415.73$262,445
Nov 20221,85821,47385.005.65$279,171
Oct 20221,95222,02887.185.86$299,342
Sep 20222,01722,08084.888.16$351,457
Aug 20222,10223,14294.529.13$409,902
Jul 20221,92022,909101.587.54$367,815
Jun 20222,39027,043115.097.98$490,793
May 20222,01927,072109.378.43$449,117
Apr 20222,47526,881104.226.84$441,746
Mar 20222,86214,790108.885.08$386,695
Feb 20222,93223,57591.054.86$381,506
Jan 20222,78121,58381.844.54$325,534
Dec 20213,33130,65671.323.90$357,098
Nov 20212,63326,04177.435.24$340,246
Oct 20212,90127,12179.795.71$386,437
Sep 20213,82434,03569.865.35$449,263
Aug 20214,93835,08266.024.22$474,074
Jul 20214,58433,90970.783.98$459,484
Jun 20214,88328,97069.493.38$437,256
May 20214,14322,60663.483.02$331,215
Apr 20214,40821,87760.362.76$326,413
Mar 20214,37121,44761.302.72$326,213
Feb 20214,12518,08457.805.55$338,754
Jan 20213,94420,96950.412.81$257,746
Dec 20203,32317,99844.642.68$196,492
Nov 20202,79114,21738.772.71$146,686
Oct 20203,86129,52536.972.48$215,917
Sep 20204,36531,79837.091.99$225,209
Aug 20205,39441,08539.982.39$313,644
Jul 20204,97140,18738.371.83$264,083
Jun 20204,97040,39434.901.69$241,731
May 20205,63032,00916.921.81$153,348
Apr 20206,37821,77914.751.80$133,373
Mar 20205,96230,16330.341.86$236,877
Feb 20206,15226,92149.881.98$360,183
Jan 20206,90620,58857.252.09$438,495
Dec 20196,80818,10159.012.30$443,451
Nov 20199,61020,84055.302.75$588,758
Oct 20195,31419,46453.472.42$331,214
Sep 20194,62044,30955.052.66$372,072
Aug 20194,54043,47253.112.30$341,295
Jul 20195,84253,01256.272.46$459,142
Jun 20196,21259,43752.782.49$475,939
May 20196,99259,53758.482.74$572,043
Apr 20197,19558,58462.632.75$611,770
Mar 20197,75952,19856.803.06$600,547
Feb 20195,93540,81650.852.79$415,762
Jan 20197,01045,93446.033.23$470,954
Dec 20187,25446,89146.594.19$534,223
Nov 20187,87146,99452.934.24$615,737
Oct 20187,06748,34461.443.40$598,473
Sep 20187,88855,20559.543.11$641,229
Aug 20188,38556,55359.403.07$671,492
Jul 20189,19765,67765.142.93$791,650
Jun 20188,85149,15060.183.08$683,884
May 201810,24760,61065.382.90$845,766
Apr 201811,27161,70963.842.90$898,546
Mar 201810,23957,94861.222.79$788,323
Feb 20189,45550,95161.782.77$725,066
Jan 20189,92549,67262.874.01$823,136
Dec 201711,24051,14557.272.92$793,136
Nov 201710,73045,25155.423.12$735,766
Oct 201710,81042,46349.292.98$659,521
Sep 201712,63447,86947.523.09$748,153
Aug 201713,41750,62345.373.00$760,821
Jul 201715,51954,49043.873.09$849,044
Jun 201716,58150,49042.493.09$860,403
May 201719,75440,78045.373.26$1,029,320
Apr 201717,61642,34747.933.21$980,337
Mar 201718,85341,49546.772.98$1,005,563
Feb 201716,86027,48850.452.95$931,748
Jan 201718,01722,19049.413.42$966,083
Dec 201615,84217,57148.763.72$837,870
Nov 20166,10817,77642.492.64$306,535
Oct 201611,98759,94946.193.09$738,938
Sep 201612,40757,72541.553.10$694,495
Aug 201613,61060,90241.442.92$742,097
Jul 201614,95764,57141.622.92$811,338
Jun 201616,79465,70645.352.69$938,083
May 201618,84967,00442.521.99$934,867
Apr 201622,18769,68836.561.99$949,908
Mar 201627,70070,80433.011.79$1,041,400
Feb 20164,59842,17926.472.06$208,751
Jan 20167,81566,62727.352.36$371,270
Dec 20157,74270,70232.362.00$392,035
Nov 20157,84863,01838.792.17$441,005
Oct 20157,83164,98243.552.43$498,724
Sep 20158,44175,91142.992.76$572,273
Aug 20157,08180,53440.162.87$515,706
Jul 20157,87073,28548.152.95$594,771
Jun 20159,32965,16456.152.88$711,682
May 201510,41366,81155.212.96$772,358
Apr 201514,48972,59949.822.71$918,336
Mar 201514,04140,76342.892.93$721,846
Feb 201510,11147,54544.662.98$593,060
Jan 20157,0739,23643.433.10$335,818
Dec 20149,79413,76654.693.59$585,073
Nov 201410,00315,10070.464.25$769,014
Oct 201414,46519,35178.303.90$1,208,097
Sep 201420,65823,96586.164.05$1,876,842
Aug 20148,95861389.394.04$803,229
Jul 201414,648114,02296.564.18$1,890,977
Jun 20146,51976,54498.164.74$1,002,485
May 20146,55669,84094.734.73$951,153
Apr 20145,66560,50695.944.81$834,481
Mar 20144,32138,15495.895.06$607,278
Feb 20143,80331,99697.406.19$568,531
Jan 20142,4608,87690.404.86$265,528
Dec 20131,0215,73191.824.35$118,704
Nov 20132203,33688.853.74$32,018

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                  405 bbl  × $106.41 =    $43,096
Casinghead gas     4,988 Mcf  × $  3.05 =    $15,193

────────────────────────────────────────────────────
Month total                                  $58,289

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. 7C/O/18593 is the state's own key, not one this site invented.