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ULVESTAD-BIRKHEAD E20I

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 51893District 08Field 85280300OilCasinghead gasSaveExport
Value, all time
$23.7 M
Feb 2019 – May 2026
Value, last 12 filed months
$1.3 M
at the published price for each month
Months reported
88
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
OilDisposition327,429 bbl$19,711,425
Casinghead gasProduction1,244,326 Mcf$3,955,876
Total$23,667,301

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 31.9070, -102.0909. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.90699, -102.09089 · 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
9,780 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 9,780 ft.

Completions filed
Feb 2019
1 of 1 wells

1 well

42-329426319H9,780 ftFeb 2019——

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 (88)

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

88 months

May 20266012,720106.413.05$72,237
Apr 20268914,33398.932.87$100,581
Mar 20265334,71789.753.15$62,693
Feb 20265205,43363.503.75$53,395
Jan 20269649,90759.138.00$136,237
Dec 20251,34714,47356.664.41$140,196
Nov 20251,51215,08458.593.93$147,815
Oct 20251,1738,54459.383.30$97,889
Sep 20251,41910,37662.743.08$120,954
Aug 20251,5129,29363.933.01$124,678
Jul 20251,1705,29866.743.32$95,650
Jun 20251,4396,81566.483.13$116,987
May 20251,4005,94560.553.23$103,986
Apr 20251,0576,70362.363.54$89,664
Mar 20251,4898,68667.704.27$137,880
Feb 20251,56510,04270.884.34$154,518
Jan 20251,45110,07974.324.28$150,963
Dec 20241,3978,44868.993.12$122,748
Nov 20241,46910,66469.052.20$124,879
Oct 20241,52910,48371.372.28$133,041
Sep 20241,3648,54669.612.36$115,154
Aug 20241,5729,87575.632.06$139,269
Jul 20241,4647,87379.932.15$133,918
Jun 20241,5627,32578.082.63$141,255
May 20241,2827,04178.812.20$116,514
Apr 20241,7249,47084.451.66$161,304
Mar 20241,8629,76080.301.55$164,599
Feb 20241,7779,88176.091.78$152,836
Jan 20248542,62373.023.30$71,009
Dec 20231,2425,19171.262.61$102,057
Nov 20231,3266,68677.892.81$122,053
Oct 20231,42210,12385.443.09$152,748
Sep 20231,48712,31789.042.74$166,090
Aug 20232,08815,21180.522.67$208,783
Jul 20232,18110,42574.852.64$190,789
Jun 20232,1657,65368.962.26$166,583
May 20231,0402,28170.622.23$78,526
Apr 20231,3603,27778.122.24$113,576
Mar 20231,9528,80372.852.39$163,270
Feb 20231,9478,38375.112.47$166,909
Jan 20232,38815,83076.533.39$236,381
Dec 20221,81212,55476.415.73$210,378
Nov 20221,93715,05185.005.65$249,626
Oct 20221,85312,04987.185.86$232,197
Sep 20221,90816,13684.888.16$293,680
Aug 20222,20913,00294.529.13$327,466
Jul 20222,4948,483101.587.54$317,320
Jun 20222,4619,371115.097.98$357,991
May 20222,5379,454109.378.43$357,198
Apr 20222,1948,838104.226.84$289,089
Mar 20222,8578,203108.885.08$352,712
Feb 20222,4566,23991.054.86$253,933
Jan 20223,5956,49981.844.54$323,705
Dec 20212,2346,72271.323.90$185,539
Nov 20212,3268,74177.435.24$225,877
Oct 20212,81211,37479.795.71$289,359
Sep 20212,81311,14769.865.35$256,163
Aug 20212,67710,42166.024.22$220,718
Jul 20212,71711,79370.783.98$239,270
Jun 20212,76613,73069.493.38$238,625
May 20212,95414,23163.483.02$230,464
Apr 20213,13013,72860.362.76$226,794
Mar 20213,2859,33561.302.72$226,733
Feb 20211,9634,09557.805.55$136,180
Jan 20213,0408,91550.412.81$178,300
Dec 20203,83312,92244.642.68$205,677
Nov 20203,88214,50738.772.71$189,769
Oct 20204,34415,34736.972.48$198,634
Sep 20204,07214,29137.091.99$179,484
Aug 20203,26517,55139.982.39$172,396
Jul 20204,58123,12738.371.83$217,983
Jun 20205,03719,85134.901.69$209,346
May 20205,48018,38516.921.81$126,086
Apr 20205,53527,43814.751.80$131,150
Mar 20206,11726,73930.341.86$235,224
Feb 20205,81124,81949.881.98$339,011
Jan 20206,30830,23857.252.09$424,474
Dec 20196,95832,54959.012.30$485,596
Nov 20197,44632,86355.302.75$502,160
Oct 20198,47434,23053.472.42$535,891
Sep 20198,73336,99455.052.66$579,055
Aug 20199,96542,27353.112.30$626,653
Jul 201912,31250,23556.272.46$816,377
Jun 201914,03643,41652.782.49$848,978
May 201919,50256,60058.482.74$1,295,579
Apr 201921,75734,04062.632.75$1,456,275
Mar 201924,84926,77556.803.06$1,493,411
Feb 201915,60512,40850.852.79$828,160

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                  601 bbl  × $106.41 =    $63,952
Casinghead gas     2,720 Mcf  × $  3.05 =     $8,285

────────────────────────────────────────────────────
Month total                                  $72,237

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/51893 is the state's own key, not one this site invented.