HALFF 2A

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 18347District 7CField 85279200OilCasinghead gasSaveExport
Value, all time
$6.7 M
Aug 2013 – Apr 2026
Value, last 12 filed months
$0
at the published price for each month
Months reported
153
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 7,461 leases and 22,481 wells, and the rule below applies to all of them.

Discovered
1904-12-31
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 Commission's schedule remark for this field reads: AREA) 85279200.

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
OilDisposition93,913 bbl$5,700,913
Casinghead gasProduction333,559 Mcf$1,016,018
Total$6,716,932

Wells on this lease (2)

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 31.3994, -101.7892. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.3 miles.

31.39937, -101.78921 · 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
100.0%
2 of 2 wells
With a plug date
100.0%
2 of 2 wells
Median depth
11,798 ft
2 wells filed one
Completion to plug
9 months
median over 2 wells

What the state filed about each well

On the RRC proration schedule
2100.0%
A plug date is filed
2100.0%
BothOn the schedule and plugged. Neither fact cancels the other.
2100.0%
NeitherNo plug date, and not on the schedule.
00.0%

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 11,735 and 11,860 ft, median 11,798 ft, over the 2 wells that filed a depth.

Completions filed
Jul 2025
2 of 2 wells
Plug dates filed
Apr 2026
2 of 2 wells

Last completion to plug: a median of 9 months across the 2 wells that filed both dates, with the middle half between 9 months and 9 months. The gap is the distance between two filed dates. It is not a statement of how long the well produced.

2 wells

42-46138873111,860 ftJul 2025Apr 2026Yes
42-46139317211,735 ftJul 2025Apr 2026Yes

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 (153)

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

153 months

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 20250067.704.27$0
Feb 20250070.884.34$0
Jan 20250074.324.28$0
Dec 20240068.993.12$0
Nov 20240069.052.20$0
Oct 20240071.372.28$0
Sep 20240069.612.36$0
Aug 20240075.632.06$0
Jul 20240079.932.15$0
Jun 20240078.082.63$0
May 20240078.812.20$0
Apr 20240084.451.66$0
Mar 20240080.301.55$0
Feb 20240076.091.78$0
Jan 20240073.023.30$0
Dec 20230071.262.61$0
Nov 20230077.892.81$0
Oct 20230085.443.09$0
Sep 20230089.042.74$0
Aug 20230080.522.67$0
Jul 20230074.852.64$0
Jun 20230068.962.26$0
May 20230070.622.23$0
Apr 20230078.122.24$0
Mar 20230072.852.39$0
Feb 20230075.112.47$0
Jan 20230076.533.39$0
Dec 20220076.415.73$0
Nov 20220085.005.65$0
Oct 20220087.185.86$0
Sep 20220084.888.16$0
Aug 20220094.529.13$0
Jul 202200101.587.54$0
Jun 2022560115.097.98$6,445
May 202200109.378.43$0
Apr 202200104.226.84$0
Mar 202200108.885.08$0
Feb 20220091.054.86$0
Jan 20220081.844.54$0
Dec 20210071.323.90$0
Nov 20210077.435.24$0
Oct 20210079.795.71$0
Sep 20210069.865.35$0
Aug 202104766.024.22$198
Jul 20212741970.783.98$19,469
Jun 20212817869.493.38$19,790
May 202155724663.483.02$36,101
Apr 202179912060.362.76$48,559
Mar 2021247761.302.72$15,160
Feb 20210057.805.55$0
Jan 20210050.412.81$0
Dec 202024830144.642.68$11,876
Nov 202024993238.772.71$12,176
Oct 20207431,09736.972.48$30,188
Sep 20202481,04937.091.99$11,287
Aug 20207371,22739.982.39$32,392
Jul 202024586938.371.83$10,987
Jun 20205061,04834.901.69$19,431
May 20204901,17716.921.81$10,427
Apr 202051485114.751.80$9,117
Mar 20205081,05930.341.86$17,378
Feb 20204821,48549.881.98$26,983
Jan 20209062,21157.252.09$56,500
Dec 20194332,15259.012.30$30,510
Nov 20194011,63955.302.75$26,684
Oct 20198681,66753.472.42$50,444
Sep 20195772,20255.052.66$37,615
Aug 20199052,01653.112.30$52,710
Jul 20194471,25056.272.46$28,228
Jun 20197621,25952.782.49$43,355
May 20196061,18958.482.74$38,697
Apr 20195551,30262.632.75$38,341
Mar 20194541,25456.803.06$29,627
Feb 201911424950.852.79$6,492
Jan 201954648746.033.23$26,705
Dec 201875349246.594.19$37,142
Nov 2018247052.934.24$13,074
Oct 201825114361.443.40$15,907
Sep 20180059.543.11$0
Aug 201837945259.403.07$23,899
Jul 20185032,46265.142.93$39,984
Jun 20188622,76860.183.08$60,392
May 20186841,98165.382.90$50,466
Apr 20187892,50163.842.90$57,625
Mar 20186692,64861.222.79$48,336
Feb 20186122,48461.782.77$44,680
Jan 20185402,57162.874.01$44,258
Dec 20171,0253,08457.272.92$67,712
Nov 20177802,74955.423.12$51,800
Oct 20178603,16049.292.98$51,818
Sep 20177332,63047.523.09$42,952
Aug 20178842,03545.373.00$46,221
Jul 20179662,17843.873.09$49,103
Jun 20171,2082,39042.493.09$58,707
May 20177423,45545.373.26$44,940
Apr 20177092,86847.933.21$43,193
Mar 20178742,93046.772.98$49,619
Feb 20177374,14250.452.95$49,411
Jan 20177672,64249.413.42$46,930
Dec 20161,2625,25448.763.72$81,095
Nov 20167703,76542.492.64$42,673
Oct 20161,3085,06846.193.09$76,078
Sep 20161,2405,28441.553.10$67,906
Aug 20167421,22841.442.92$34,340
Jul 20164451,49641.622.92$22,896
Jun 20167663,43245.352.69$43,956
May 20168427,32442.521.99$50,384
Apr 20161,2349,41036.561.99$63,851
Mar 201682214,82533.011.79$53,730
Feb 20168998,54426.472.06$41,428
Jan 20161,6127,99727.352.36$62,996
Dec 20151,90615,73732.362.00$93,174
Nov 20151,0259,66538.792.17$60,707
Oct 20151,1664,79243.552.43$62,407
Sep 20151,6101,09042.992.76$72,221
Aug 20158808,49140.162.87$59,731
Jul 20151,13115,58348.152.95$100,351
Jun 20151,75913,07156.152.88$136,450
May 20151,8057,87955.212.96$122,940
Apr 20152,3865,51649.822.71$133,800
Mar 20153,2796,04242.892.93$158,368
Feb 20152,0013,25944.662.98$99,064
Jan 20151,6112,13243.433.10$76,576
Dec 20141,7813,19754.693.59$108,884
Nov 20142,2155,09270.464.25$177,719
Oct 20141,9097,19178.303.90$177,527
Sep 20142,3103,95186.164.05$215,013
Aug 201496018,62289.394.04$160,956
Jul 20142,6938,68396.564.18$296,328
Jun 20144,00011,10098.164.74$445,219
May 20148623,31394.734.73$97,316
Apr 20148094,03295.944.81$97,006
Mar 20148932,53295.895.06$98,434
Feb 20141,2202,89097.406.19$136,723
Jan 20141,0401,43890.404.86$101,006
Dec 20131,4072,41891.824.35$139,720
Nov 20132,9215,69488.853.74$280,817
Oct 20132,0932,59497.423.78$213,704
Sep 20132,967674104.113.72$311,400
Aug 201300104.253.52$0

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.

Jun 2022 — as filed, then multipliedworked
Oil                   56 bbl  × $115.09 =     $6,445
Casinghead gas         0 Mcf  × $  7.98 =         $0

────────────────────────────────────────────────────
Month total                                   $6,445

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/18347 is the state's own key, not one this site invented.