Skip to content
Royalty Clerk

Texas oil lease

Producing

HALFF 1F

Halff 1F is an oil lease in Upton County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) R 40 Exc field.

1 well

14,503bbl oil, last 12 months+20% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Upton County
Field
Spraberry (Trend Area) R 40 Exc
RRC lease
7C-20097

265 royalty accounts on the county rolls

Is your family on this lease?

Email me when this lease changes
Gas, last 12 months
49,372 mcf
Oil in Aug 2026
1,180 bbl
Search

Did a relative own a share of this lease?

Pick the year they passed and see what the lease has sold since.

Wells on this lease and around it

Where the state's map puts this lease's well, and what has been drilled or permitted within about 2 miles of it.
Map of the Halff 1F lease in Upton County, Texas: its well ringed, among 266 wells and 39 recent drilling locations in a picture about 6 miles across.
  • This lease1Its well, ringed on the map: producing
  • Drilling locations39Permits issued in the last two years
  • Producing wells182On a lease reporting production now
  • Not producing13Shut in, inactive or no lease on record
  • Plugged71The state's wellbore record says plugged

The ringed dot is this lease's well, where the Railroad Commission's map puts it. The other dots are wells and drilling permits of the last 24 months on the land around it; the counts are for everything in the picture, which is about 6 miles across. The thin brown lines are the original land surveys; where there is room, a survey carries its abstract number, the number deeds and division orders cite. Sources: Railroad Commission of Texas well layers, drilling permit files and survey lines, US Census Bureau county outlines, base map from USGS The National Map.

See the whole Texas well map

A one-page map of this lease to print, for a lawyer, a buyer or a probate file.

Use this map on your site

You may show this map on any site, unchanged. Keep the credit line and its link to Royalty Clerk under the map. The picture updates by itself as the state records new wells and permits.

Download the picture (WebP)
<a href="https://royaltyclerk.com/texas/leases/halff-1f-7c-20097"><img src="https://royaltyclerk.com/maps/lease-wells/halff-1f-7c-20097.svg" alt="Map of the Halff 1F lease in Upton County, Texas: its well ringed, among 266 wells and 39 recent drilling locations in a picture about 6 miles across." width="1000" height="951" loading="lazy" style="max-width:100%;height:auto;border:0"></a>
<p style="margin:4px 0 0;font-size:14px">Map: <a href="https://royaltyclerk.com/texas/leases/halff-1f-7c-20097">Wells on the Halff 1F lease, Upton County, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

Other Halff leases in Upton County

8 leases in Upton County in the same field or with the same operator carry the Halff name. Operators often name the leases on one family's land alike, with a letter or unit number after the name. Sharing a name proves no tie: your division order says which ones pay you.

Production by month

Oil output rose 20% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 20% over the last 12 monthsMonthly oil production and gas for HALFF 1F, Sep 2023 to Aug 2026. Oil output rose 20% over the last 12 months. 14,503 bbl in the 12 months through Aug 2026, against 12,107 bbl in the 12 months before.Last 12 months: 14,503 bblbbl per monthmcf per month005005,0001,00010k1,50015k2,00020k2,50025kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 20% over the last 12 monthsMonthly oil production and gas for HALFF 1F, Sep 2023 to Aug 2026. Oil output rose 20% over the last 12 months. 14,503 bbl in the 12 months through Aug 2026, against 12,107 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005005,0001,00010k1,50015k2,00020k2,50025kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

From the state record

What owners ask about Halff 1F

When is the check for August 2026 due?
August 2026 is the newest month the state has posted for this lease. Texas law gives the payor until 60 days after the end of the sale month for oil and 90 for gas: the oil by Oct 30, 2026 and the gas by Nov 29, 2026, unless the lease sets another time.
Source: Railroad Commission production reports; Texas Natural Resources Code §91.402.
See your next three checks
Which Texas production tax rate applies?
The Texas Comptroller lists no approved exemption or reduced rate for this lease for August 2026, so the full 4.6% on oil and 7.5% on gas applies.
Source: Texas Comptroller, approved severance tax exemptions.
Check the tax on your stub
Who buys the oil and gas?
Oil: Plains Marketing, L.p. and Plains Pipeline L.p. gather it. Gas from oil wells: Targa Pl Mid-Cont Westtex LLC buys and gathers it. The buyer's price is what a royalty check is figured on.
Source: Railroad Commission Form P-4, gatherers and purchasers.
See every buyer and past buyers
How many 1099s should an owner expect for 2025?
One company, Pioneer Natural Res. USA, Inc., filed this lease's reports behind every 2025 check, so most owners get one form. The operator is not always the company that pays, so go by the name on the stubs.
Source: Railroad Commission production reports, operator of record by month.
Check your 1099 against it

Free tools, already on this lease

Ask a question about Halff 1F

33 years of state records, 1993–2026

HALFF 1F since 2018

We read every monthly report the Railroad Commission holds, back to January 1993. This lease first reported in September 2018. It filed 96 monthly reports through August 2026.

Sold since 2018

$28.8 million

What the whole lease’s oil and gas sold for at each month’s public prices, before tax and the operator’s deductions. A royalty owner’s share is their decimal of it.

A relative owned a share? See what it earned after they died
Oil sold
416,390 bbl
Gas sold
1,008,041 mcf
Best year
2019$6.6 million sold
Last report
Aug 2026First: Sep 2018

Its best year was 2019: $6.6 million of oil and gas sold

Each bar is what the lease’s oil and gas sold for that year, at that month’s prices. 2026 is only part of a year in the records, drawn lighter.

  • Oil
  • Gas
Its best year was 2019: $6.6 million of oil and gas soldHalff 1F: oil and gas sold each year from 2018 to 2026, at each month's prices. Its best year was 2019: $6.6 million of oil and gas sold.Sold each year, at each month’s prices$0$2.5M$5M$7.5MPeak 2019: $6.7M201820192020202120222023202420252026
Its best year was 2019: $6.6 million of oil and gas soldHalff 1F: oil and gas sold each year from 2018 to 2026, at each month's prices. Its best year was 2019: $6.6 million of oil and gas sold.Sold each year, at each month’s prices$0$2.5M$5M$7.5MPeak 2019: $6.7M'18'19'20'21'22'23'24'25'26

SourceTexas Railroad Commission Production Data Query, every monthly report since January 1993; EIA monthly WTI and Henry Hub prices (before 1997, EIA's yearly Texas natural gas wellhead price), through August 2026.

Every year as a table
Halff 1F: oil and gas sold each year
YearMonthsOil sold, bblGas sold, mcfSold for
2026 *810,42938,645$1,024,656
20251214,01025,488$1,005,371
20241212,08321,724$1,007,852
20231217,201212,760$1,856,062
20221230,941197,631$4,242,953
20211260,90299,494$4,701,085
20201295,566213,530$4,110,234
201912112,482101,665$6,688,907
2018462,77697,104$4,248,257

* Part of the year: the records run through August 2026.

Where the gas went

96% of the gas went to a processing plant in the last 12 months

Flaring peaked at 3.3% of the gas in Dec 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
96% of the gas went to a processing plant in the last 12 monthsShare of HALFF 1F gas by disposition code each month, Sep 2023 to Aug 2026. 96% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.3% of the gas in Dec 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 3.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
96% of the gas went to a processing plant in the last 12 monthsShare of HALFF 1F gas by disposition code each month, Sep 2023 to Aug 2026. 96% of the gas went to a processing plant in the last 12 months. Flaring peaked at 3.3% of the gas in Dec 2024.Share of gas by disposition code0%50%100%Flared 3.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

  • Processing plant (3)

    96% · 47,631 mcf

  • Lease fuel (1)

    3.4% · 1,655 mcf

  • Flared (4)

    0.2% · 86 mcf

0.2% of the gas flared in the last 12 months. One month above 3%.

1 well on this lease

Wells on HALFF 1F
API numberWellStatusCompleted
42-461-40718Halff 1F 106HActiveMay 24, 2018

SourceTexas Railroad Commission production records and full wellbore file.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Plains Marketing, L.p.OilGathers50May 24, 2018
Plains Pipeline L.p.OilGathers50May 24, 2018
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100May 24, 2018
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100May 24, 2018

SourceRailroad Commission Form P-4 file, Oct 24, 2026 (source).

Who buys my oilOil price check

965.40 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Halff 1F
API numberWell no.Acreson the permit
42-461-40718106H965.40

SourceRailroad Commission drilling permits, Oct 31, 2026 (source 1, source 2).

Unit decimal checker

On the Reagan and Upton County rolls

Reagan County Appraisal District

2026 roll
Owners
134
Accounts
136
Appraised in all
$160k$160,430

Each square is one account

  • Royalty135
  • Working interest1

Upton County Appraisal District

2026 roll
Owners
131
Accounts
131
Appraised in all
$154k$154,210

Each square is one account

  • Royalty130
  • Working interest1

SourceReagan County Appraisal District, 2026 mineral roll (source), read Sep 29, 2026. Upton County Appraisal District, 2026 mineral roll (source), read Sep 29, 2026. Accounts matched to this lease by RRC number or lease name; no owner is named.

Estimate your royalty

36 months, newest first

Ledger for HALFF 1F
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Aug 20261,1801,1795,9595,72934$83.90$2.78
Jul 20261,2051,2124,7144,5380$80.46$2.89
Jun 20261,1781,1776,3166,0812$84.81$3.15
May 20261,3871,3854,8734,7050$102.13$2.94
Apr 20261,2611,2703,5813,39435$100.32$2.77
Mar 20261,7471,7384,7374,5620$91.38$3.04
Feb 20261,2851,2823,1453,1400$64.51$3.62
Jan 20261,1961,1866,6676,49615$60.04$7.72
Dec 20255135192,6382,5190$57.97$4.26
Nov 20259029054,6704,4600$60.06$3.79
Oct 20251,2161,2181,8641,8010$60.89$3.19
Sep 20251,4331,4292082060$63.96$2.97
Aug 20251,4511,4521,0381,0030$64.86$2.91
Jul 20251,3201,3163,6223,4771$68.39$3.20
Jun 20258618603,5343,3650$68.17$3.02
May 20259699752,9042,7570$62.17$3.12
Apr 20251,7961,7982,3372,2130$63.54$3.42
Mar 20251,8331,8317216840$68.24$4.12
Feb 20251,5101,4973,1683,0030$71.53$4.19
Jan 2025206210000$75.74$4.13
Dec 20247427385,3194,885178$70.12$3.01
Nov 2024175177000$69.95$2.12
Oct 20244824831,4031,3192$71.99$2.20
Sep 20247627638327920$70.24$2.28
Aug 20241,0851,0851,4001,3310$76.68$1.99
Jul 20241,1411,1411,7141,6310$81.80$2.07
Jun 20241,4331,4381,3681,3080$79.77$2.54
May 20241,9852,0642522500$80.02$2.12
Apr 20242,4322,3467226978$85.35$1.60
Mar 2024125123000$81.28$1.49
Feb 20243457550$77.25$1.72
Jan 20241,6571,6689,7779,5061$74.15$3.18
Dec 20232,0672,06112,28911,9280$71.90$2.52
Nov 20232,0342,03312,49612,1470$77.69$2.71
Oct 20231,6171,60518,58818,04421$85.64$2.98
Sep 20231,0911,08921,64921,07414$89.43$2.64

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Aug 2026. Prices: EIA, through Oct 2026. Updated Oct 30, 2026.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorPioneer Natural Res. USA, Inc.FieldSpraberry (Trend Area) R 40 ExcCountyUpton County

Pioneer Natural Res. USA, Inc. in Upton County

All Pioneer Natural Res. USA, Inc. leases →

Spraberry (Trend Area) R 40 Exc field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km