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HALFF 1D

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 20099District 7CField 85279201OilCasinghead gasSaveExport
Value, all time
$28.0 M
Sep 2018 – May 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
93
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
OilDisposition404,294 bbl$23,942,727
Casinghead gasProduction1,204,788 Mcf$4,010,732
Total$27,953,459

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 31.3762, -101.7763. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.37618, -101.77626 · 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
9,166 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 9,166 ft.

Completions filed
Dec 2025
1 of 1 wells

1 well

42-46140716104H9,166 ftDec 2025——

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 (93)

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

93 months

May 202600106.413.05$0
Apr 20260098.932.87$0
Mar 20260089.753.15$0
Feb 20260063.503.75$0
Jan 20260059.138.00$0
Dec 20250056.664.41$0
Nov 20250058.593.93$0
Oct 20250059.383.30$0
Sep 20250062.743.08$0
Aug 20250063.933.01$0
Jul 20250066.743.32$0
Jun 20250066.483.13$0
May 20250060.553.23$0
Apr 20250062.363.54$0
Mar 20252067.704.27$135
Feb 202522534170.884.34$17,428
Jan 20251,1029,27874.324.28$121,598
Dec 20241,71718,19468.993.12$175,246
Nov 20241,71519,25369.052.20$160,747
Oct 20241,85718,74271.372.28$175,292
Sep 20241,81918,94469.612.36$171,411
Aug 20241,78623,19175.632.06$182,933
Jul 20241,91619,37679.932.15$194,738
Jun 20241,61919,81578.082.63$178,604
May 20242,2502,33178.812.20$182,447
Apr 20241,50058384.451.66$127,642
Mar 20241,63715,53480.301.55$155,453
Feb 20242,02315,52976.091.78$181,628
Jan 20242,21414,83173.023.30$210,574
Dec 20232,10716,49571.262.61$193,209
Nov 20232,06616,89677.892.81$208,357
Oct 20231,60419,28685.443.09$196,587
Sep 20231,50418,28589.042.74$183,926
Aug 20231,61520,39980.522.67$184,564
Jul 20231,91020,39774.852.64$196,848
Jun 20231,88923,12868.962.26$182,500
May 20231,61225,60370.622.23$170,868
Apr 20231,43822,48978.122.24$162,662
Mar 20231,58423,65172.852.39$171,995
Feb 20231,32320,26375.112.47$149,333
Jan 20231,87825,10576.533.39$228,772
Dec 20222,14031,51576.415.73$344,069
Nov 20222,26333,05685.005.65$378,996
Oct 20222,55524,38487.185.86$365,727
Sep 20223,00426,66784.888.16$472,680
Aug 20222,81614,54494.529.13$398,914
Jul 20222,6076,425101.587.54$313,277
Jun 20223,2715,839115.097.98$423,038
May 20224,2987,457109.378.43$532,957
Apr 20223,8334,645104.226.84$431,236
Mar 20223,9955,431108.885.08$462,546
Feb 20224,14016,13691.054.86$455,349
Jan 20224,52212,01781.844.54$424,610
Dec 20214,5138,51371.323.90$355,060
Nov 20214,15211,80377.435.24$383,300
Oct 20213,9656,88879.795.71$355,724
Sep 20216,7177,85969.865.35$511,303
Aug 20212,36713,25166.024.22$212,196
Jul 2021964,81670.783.98$25,973
Jun 202181,45369.493.38$5,468
May 2021464,38763.483.02$16,159
Apr 2021143,27660.362.76$9,882
Mar 2021392,97161.302.72$10,463
Feb 20212561,13857.805.55$21,110
Jan 20213193350.412.81$4,185
Dec 20203,9023,30744.642.68$183,033
Nov 20205,3072,13938.772.71$211,542
Oct 20201,4362,78236.972.48$59,984
Sep 20201,5792,17037.091.99$62,886
Aug 20203,95511,28339.982.39$185,032
Jul 20204,08911,92638.371.83$178,661
Jun 20204,53511,23234.901.69$177,257
May 20204,80214,58716.921.81$107,722
Apr 20206,97323,27314.751.80$144,845
Mar 20209,31721,81830.341.86$323,177
Feb 20208,96115,28949.881.98$477,257
Jan 202010,57722,59957.252.09$652,872
Dec 201911,74924,47059.012.30$749,696
Nov 201911,96722,08755.302.75$722,530
Oct 201912,75427,33053.472.42$748,055
Sep 201911,16024,96555.052.66$680,697
Aug 20199,26814,82153.112.30$526,376
Jul 20199,24421,07456.272.46$572,003
Jun 201915,39021,72052.782.49$866,393
May 201914,99616,11358.482.74$921,121
Apr 201910,35013,16662.632.75$684,436
Mar 201915,36915,79956.803.06$921,337
Feb 201914,91620,10750.852.79$814,622
Jan 201919,77524,68846.033.23$989,941
Dec 201820,36931,29846.594.19$1,079,988
Nov 201823,51134,99352.934.24$1,392,711
Oct 201826,73936,14661.443.40$1,765,671
Sep 20185,74410,26359.543.11$373,895

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 2025 — as filed, then multipliedworked
Oil                    2 bbl  × $ 67.70 =       $135
Casinghead gas         0 Mcf  × $  4.27 =         $0

────────────────────────────────────────────────────
Month total                                     $135

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/20099 is the state's own key, not one this site invented.