ERWIN "K"

Operated by PIONEER NATURAL RES. USA, INC. (P-5 665748) 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 37609District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$18.4 M
Sep 2005 – May 2026
Value, last 12 filed months
$128 k
at the published price for each month
Months reported
249
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
OilDisposition230,900 bbl$16,612,053
Casinghead gasProduction356,138 Mcf$1,799,561
Total$18,411,614

Wells on this lease (6)

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 32.0467, -101.7990. A lease has no coordinate of its own — that point is the mean of its wells, and they span 1.1 miles.

32.04669, -101.79914 · 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
50.0%
3 of 6 wells
With a plug date
50.0%
3 of 6 wells
Median depth
9,580 ft
6 wells filed one
Completion to plug
11.8 years
median over 2 wells

What the state filed about each well

On the RRC proration schedule
350.0%
A plug date is filed
350.0%
BothOn the schedule and plugged. Neither fact cancels the other.
350.0%
NeitherNo plug date, and not on the schedule.
350.0%

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

Between 9,525 and 9,632 ft, median 9,580 ft, over the 6 wells that filed a depth.

Completions filed
Sep 2005 – Jan 2007
5 of 6 wells; 1 filed none
Plug dates filed
Jan 2015 – Jul 2018
3 of 6 wells; 3 filed none

Last completion to plug: a median of 11.8 years across the 2 wells that filed both dates, with the middle half between 11.6 years and 11.8 years. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

6 wells

42-3293555889,552 ftJan 2015Yes
42-3293555749,525 ftJan 2007Jul 2018Yes
42-3293543739,607 ftDec 2006
42-3293543859,632 ftAug 2006
42-3293543629,618 ftJul 2006
42-3293530919,550 ftSep 2005Aug 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 (249)

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

249 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 2026367089.753.15$32,938
Feb 2026197063.503.75$12,510
Jan 20260059.138.00$0
Dec 2025185056.664.41$10,482
Nov 202504558.593.93$177
Oct 202505959.383.30$195
Sep 20250062.743.08$0
Aug 202516710863.933.01$11,002
Jul 202535438666.743.32$24,906
Jun 202550857066.483.13$35,555
May 202534656460.553.23$22,773
Apr 202571652062.363.54$46,492
Mar 202535838367.704.27$25,871
Feb 202517840170.884.34$14,357
Jan 202571553374.324.28$55,419
Dec 202436551368.993.12$26,783
Nov 202436853469.052.20$26,584
Oct 202453458571.372.28$39,446
Sep 202454460369.612.36$39,294
Aug 202451266375.632.06$40,091
Jul 202451269679.932.15$42,418
Jun 202450074678.082.63$41,005
May 202449958278.812.20$40,606
Apr 202469766584.451.66$59,965
Mar 202454647280.301.55$44,573
Feb 202437336076.091.78$29,024
Jan 202452124173.023.30$38,838
Dec 202317212071.262.61$12,570
Nov 202317520577.892.81$14,206
Oct 202353264585.443.09$47,445
Sep 202368974089.042.74$63,372
Aug 202370277480.522.67$58,594
Jul 202371051374.852.64$54,499
Jun 202383161368.962.26$58,690
May 202367668670.622.23$49,267
Apr 202351140078.122.24$40,814
Mar 202317123472.852.39$13,017
Feb 202333927475.112.47$26,138
Jan 202334532276.533.39$27,494
Dec 202233729576.415.73$27,440
Nov 202299846885.005.65$87,472
Oct 20221,03467487.185.86$94,096
Sep 202216927884.888.16$16,614
Aug 202232538294.529.13$34,206
Jul 2022501634101.587.54$55,673
Jun 2022231371115.097.98$29,545
May 2022329594109.378.43$40,992
Apr 2022516522104.226.84$57,347
Mar 2022313547108.885.08$36,856
Feb 202231742491.054.86$30,923
Jan 202234834381.844.54$30,037
Dec 202117146871.323.90$14,021
Nov 202152250677.435.24$43,068
Oct 202132958179.795.71$29,571
Sep 202133041969.865.35$25,296
Aug 202133148566.024.22$23,900
Jul 202134146370.783.98$25,980
Jun 202133845469.493.38$25,022
May 202133941663.483.02$22,775
Apr 202117245560.362.76$11,637
Mar 202167039161.302.72$42,133
Feb 2021014757.805.55$816
Jan 202117819850.412.81$9,529
Dec 202017327044.642.68$8,445
Nov 202018427738.772.71$7,883
Oct 202015731836.972.48$6,592
Sep 2020119937.091.99$433
Aug 202017935639.982.39$8,006
Jul 202015936438.371.83$6,765
Jun 202017532034.901.69$6,648
May 202034164216.921.81$6,935
Apr 202052376814.751.80$9,100
Mar 202051469130.341.86$16,877
Feb 202033858749.881.98$18,022
Jan 202034159957.252.09$20,777
Dec 201934852259.012.30$21,738
Nov 201950862655.302.75$29,814
Oct 201934464153.472.42$19,944
Sep 201931570255.052.66$19,206
Aug 201948879553.112.30$27,750
Jul 201934985556.272.46$21,742
Jun 201950780752.782.49$28,770
May 201967682458.482.74$41,791
Apr 201934455962.632.75$23,082
Mar 201954281756.803.06$33,287
Feb 201934859750.852.79$19,363
Jan 201952657146.033.23$26,055
Dec 201835059446.594.19$18,793
Nov 201851571852.934.24$30,301
Oct 201817543261.443.40$12,220
Sep 20183438459.543.11$20,683
Aug 201851336659.403.07$31,595
Jul 201834782165.142.93$25,011
Jun 201850910160.183.08$30,942
May 201850720965.382.90$33,754
Apr 201852611463.842.90$33,911
Mar 201834663561.222.79$22,952
Feb 201851473761.782.77$33,794
Jan 201852460762.874.01$35,378
Dec 201751784657.272.92$32,080
Nov 201734084355.423.12$21,472
Oct 201750888449.292.98$27,677
Sep 201751787247.523.09$27,260
Aug 201750985445.373.00$25,659
Jul 201734797943.873.09$18,245
Jun 201750395242.493.09$24,312
May 201734998445.373.26$19,045
Apr 201751594847.933.21$27,729
Mar 201751589746.772.98$26,763
Feb 201752275550.452.95$28,564
Jan 201734685049.413.42$20,002
Dec 201669292348.763.72$37,178
Nov 20167131,45542.492.64$34,143
Oct 20166921,46246.193.09$36,481
Sep 20168611,73541.553.10$41,154
Aug 20167001,85341.442.92$34,427
Jul 20167151,81441.622.92$35,063
Jun 20167151,67145.352.69$36,913
May 20167211,81942.521.99$34,279
Apr 20169011,74936.561.99$36,423
Mar 20167191,65733.011.79$26,707
Feb 20167201,56326.472.06$22,284
Jan 20169001,70727.352.36$28,651
Dec 20158971,72732.362.00$32,483
Nov 20157151,65038.792.17$31,311
Oct 20156901,81543.552.43$34,454
Sep 20158921,78942.992.76$43,282
Aug 20157101,92540.162.87$34,043
Jul 20158841,93948.152.95$48,275
Jun 20157081,85656.152.88$45,105
May 20159061,87955.212.96$55,574
Apr 20159051,60949.822.71$49,442
Mar 20159241,75042.892.93$44,766
Feb 20157551,59444.662.98$38,462
Jan 20159041,74543.433.10$44,671
Dec 20141,1011,75054.693.59$66,499
Nov 20148941,67670.464.25$70,117
Oct 20141,2771,94878.303.90$107,588
Sep 20143621,43786.164.05$37,003
Aug 20147371,52389.394.04$72,026
Jul 20145491,58196.564.18$59,619
Jun 20148921,78698.164.74$96,019
May 20149011,73294.734.73$93,538
Apr 20147421,68995.944.81$79,310
Mar 20147271,64795.895.06$78,041
Feb 20149031,43097.406.19$96,807
Jan 20141,1101,32390.404.86$106,775
Dec 20131,1211,10591.824.35$107,742
Nov 20139341,34388.853.74$88,006
Oct 20137431,49597.423.78$78,033
Sep 20139131,491104.113.72$100,596
Aug 20137411,594104.253.52$82,864
Jul 20131,1031,303102.523.72$117,924
Jun 20139281,27494.403.93$92,614
May 20137341,46694.834.15$75,688
Apr 20139281,36193.964.28$93,023
Mar 20139191,54393.623.91$92,074
Feb 20139341,21591.233.42$89,364
Jan 20139171,36091.603.42$88,648
Dec 20129381,39886.773.42$86,172
Nov 20129271,11586.953.62$84,644
Oct 20127171,20589.383.40$68,182
Sep 20127331,10794.672.92$72,624
Aug 20121,0861,37192.662.91$104,616
Jul 20121,4331,46085.133.02$126,402
Jun 20127181,45379.822.52$60,971
May 20121,0842,05291.612.49$104,411
Apr 20121,1172,247101.652.00$118,030
Mar 20129132,068105.052.22$100,506
Feb 20129311,972101.102.57$99,193
Jan 20121,4802,22098.092.73$151,243
Dec 20119162,14896.873.24$95,692
Nov 20111,2882,32295.723.31$130,976
Oct 20111,0932,52084.983.65$102,077
Sep 20111,2762,16683.623.99$115,332
Aug 20111,2712,05783.404.15$114,537
Jul 20119011,77894.144.52$92,852
Jun 20119082,32492.904.64$95,136
May 20111,0852,39798.134.40$117,029
Apr 20111,2992,307105.964.33$147,639
Mar 20111,0982,45396.364.06$115,756
Feb 20111,0882,03485.644.18$101,678
Jan 20111,1102,04286.504.59$105,385
Dec 20101,2912,14685.734.35$120,008
Nov 20101,0982,14680.843.80$96,907
Oct 20101,2792,48778.103.51$108,617
Sep 20101,4482,59272.633.98$115,483
Aug 20101,2642,63773.684.42$104,785
Jul 20101,0812,16472.554.74$88,676
Jun 20101,2722,51770.364.91$101,857
May 20101,0942,05471.124.24$86,504
Apr 20107251,91181.694.12$67,104
Mar 20109052,03878.394.39$79,887
Feb 20101,2791,86673.585.44$104,264
Jan 20109082,18174.365.96$80,527
Dec 20091,2812,37071.445.48$104,511
Nov 20091,0882,24674.593.75$89,580
Oct 20091,2662,58172.544.11$102,444
Sep 20091,4622,68865.543.06$104,058
Aug 20091,2673,12467.423.22$95,476
Jul 20091,4273,03761.133.46$97,754
Jun 20091,2652,86366.163.90$94,844
May 20091,4552,78854.743.93$90,592
Apr 20091,2802,74446.773.59$69,710
Mar 20091,6302,73742.144.06$79,798
Feb 20091,6602,31532.814.63$65,190
Jan 20092,0383,13735.865.37$89,932
Dec 20081,8543,31737.105.98$88,610
Nov 20082,0113,28255.496.86$134,106
Oct 20082,20280675.246.92$171,258
Sep 20082,1942,430101.767.88$242,403
Aug 20081,9893,382114.228.48$255,873
Jul 20082,1703,332131.0811.39$322,393
Jun 20081,9733,230131.3313.03$301,209
May 20082,4853,631123.1711.57$348,104
Apr 20081,9652,944110.3110.45$247,538
Mar 20082,3382,917101.909.66$266,432
Feb 20082,1642,60692.538.77$223,091
Jan 20082,5333,19290.388.21$255,125
Dec 20072,5353,27288.337.30$247,809
Nov 20072,8563,34391.677.29$286,186
Oct 20072,6823,65382.856.92$247,490
Sep 20072,4913,81675.846.24$212,745
Aug 20073,0264,26669.066.39$236,227
Jul 20073,0215,33070.906.39$248,237
Jun 20073,3814,03362.007.55$240,065
May 20073,4044,47458.747.85$235,055
Apr 20073,9715,09859.617.81$276,502
Mar 20074,1264,83156.927.30$270,128
Feb 20074,1334,65355.108.22$265,957
Jan 20074,1704,68350.306.73$241,253
Dec 20063,0673,01556.656.92$194,605
Nov 20062,1452,68554.207.62$136,712
Oct 20062,8773,62254.906.01$179,729
Sep 20063,5885,45360.085.04$243,035
Aug 20062,3062,36168.717.34$175,775
Jul 200671194169.376.34$55,291
Jun 200654586566.286.38$41,645
May 20065361,00566.016.42$41,838
Apr 200672398564.397.36$53,804
Mar 200689199056.707.08$57,532
Feb 200672293257.597.75$48,804
Jan 200690192260.598.93$62,828
Dec 20051,0661,05954.9413.42$72,773
Nov 20051,4262,02554.6910.59$99,429
Oct 20052,5102,98958.3413.80$187,669
Sep 20058991,36661.4512.08$71,743

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.

Mar 2026 — as filed, then multipliedworked
Oil                  367 bbl  × $ 89.75 =    $32,938
Casinghead gas         0 Mcf  × $  3.15 =         $0

────────────────────────────────────────────────────
Month total                                  $32,938

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/37609 is the state's own key, not one this site invented.