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HALFF 1R

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 20086District 7CField 85279201OilCasinghead gasSaveExport
Value, all time
$26.8 M
Jun 2018 – May 2026
Value, last 12 filed months
$2.7 M
at the published price for each month
Months reported
96
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
OilDisposition369,257 bbl$22,023,295
Casinghead gasProduction1,373,414 Mcf$4,784,326
Total$26,807,621

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 31.3794, -101.7627. A lease has no coordinate of its own — that point is the mean of its wells, and they span 0.0 miles.

31.37942, -101.76268 · 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
9,098 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 9,098 ft.

Completions filed
Sep 2018
1 of 1 wells

1 well

42-38340115118H9,098 ftSep 2018——

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 (96)

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

96 months

May 20261,17430,979106.413.05$219,282
Apr 20261,33127,18498.932.87$209,686
Mar 20261,58025,55789.753.15$222,295
Feb 20261,78519,28463.503.75$185,669
Jan 20261,76525,02659.138.00$304,520
Dec 20251,82823,80756.664.41$208,643
Nov 20251,86820,31658.593.93$189,216
Oct 20251,89625,34659.383.30$196,349
Sep 20252,16928,12762.743.08$222,628
Aug 20252,68629,40063.933.01$260,350
Jul 20252,67627,87766.743.32$271,014
Jun 20252,42324,47366.483.13$237,650
May 20253,06230,48460.553.23$283,938
Apr 20253,42026,29162.363.54$306,423
Mar 20251,59025,42767.704.27$216,174
Feb 20251,29726,28970.884.34$206,048
Jan 20252,38119,84174.324.28$261,849
Dec 20242,55412,61368.993.12$215,570
Nov 20246725,21869.052.20$57,873
Oct 20242,71319,26371.372.28$237,573
Sep 20242,72016,96569.612.36$229,451
Aug 20242,49014,29775.632.06$217,822
Jul 20242,50411,37579.932.15$224,562
Jun 20242,4057,60078.082.63$207,801
May 20242,97785078.812.20$236,486
Apr 2024501484.451.66$4,246
Mar 202414316280.301.55$11,733
Feb 202482654976.091.78$63,830
Jan 20242,2225,26073.023.30$179,596
Dec 20232,3716,46471.262.61$185,833
Nov 20232,4906,57077.892.81$212,392
Oct 20233,3034,46585.443.09$295,993
Sep 20233,3252,74489.042.74$303,563
Aug 20233,0605,56180.522.67$261,255
Jul 20233,1455,38074.852.64$249,616
Jun 20232,2553,86768.962.26$164,238
May 20233,2166,41670.622.23$241,405
Apr 20232,4776,27278.122.24$207,538
Mar 20232,6604,61772.852.39$204,830
Feb 20232,9173,07775.112.47$226,683
Jan 20232,6441,80876.533.39$208,470
Dec 202251827776.415.73$41,167
Nov 20222085.005.65$170
Oct 20222611,15287.185.86$29,509
Sep 20221,86311,34884.888.16$250,773
Aug 20221,94011,71594.529.13$290,293
Jul 20222,02012,489101.587.54$299,385
Jun 20222,17311,168115.097.98$339,180
May 20222,52515,094109.378.43$403,448
Apr 20222,20519,425104.226.84$362,625
Mar 20222,23223,627108.885.08$362,960
Feb 20223,48014,88891.054.86$389,192
Jan 20224,12317,46781.844.54$416,686
Dec 20214,19321,74171.323.90$383,816
Nov 20213,58710,41277.435.24$332,267
Oct 20212,4408,46079.795.71$243,027
Sep 20212,1497,35469.865.35$189,480
Aug 20212,01012,20566.024.22$184,213
Jul 20211,3945,06870.783.98$118,849
Jun 20212,59817,88069.493.38$240,981
May 20212,92119,57563.483.02$244,496
Apr 20213,52415,00260.362.76$254,090
Mar 20213,95713,41361.302.72$279,006
Feb 20211,2232,11957.805.55$82,446
Jan 20212,7946,51150.412.81$159,143
Dec 20203,76118,37044.642.68$217,039
Nov 20203,82620,12238.772.71$202,796
Oct 20206,42813,41136.972.48$270,881
Sep 20203,0156,27637.091.99$124,322
Aug 20204,94516,36739.982.39$236,738
Jul 20205,00119,74338.371.83$227,922
Jun 20205,37420,89634.901.69$222,873
May 20205,93728,23316.921.81$151,690
Apr 20207,73026,85414.751.80$162,472
Mar 20205,93315,49930.341.86$208,777
Feb 20205,64524,10949.881.98$329,325
Jan 20206,19515,38857.252.09$386,898
Dec 20196,63018,21559.012.30$433,210
Nov 20198,52019,12955.302.75$523,774
Oct 20198,50620,01853.472.42$503,230
Sep 20198,73726,41455.052.66$551,161
Aug 20199,16917,60453.112.30$527,532
Jul 201911,07519,67056.272.46$671,580
Jun 201910,63416,02852.782.49$601,191
May 201910,0047,58858.482.74$605,827
Apr 20191,8501,45362.632.75$119,862
Mar 20196,00114,93456.803.06$386,586
Feb 20197,40813,99350.852.79$415,768
Jan 20199,92113,83446.033.23$501,322
Dec 201813,85022,49746.594.19$739,431
Nov 201816,03327,92052.934.24$966,930
Oct 201823,70333,03461.443.40$1,568,564
Sep 20186,22410,31059.543.11$402,620
Aug 20180059.403.07$0
Jul 20180065.142.93$0
Jun 20180060.183.08$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.

May 2026 — as filed, then multipliedworked
Oil                1,174 bbl  × $106.41 =   $124,925
Casinghead gas    30,979 Mcf  × $  3.05 =    $94,357

────────────────────────────────────────────────────
Month total                                 $219,282

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/20086 is the state's own key, not one this site invented.