Skip to content
Royalty Clerk

Texas oil lease

Producing

POST

Post is an oil lease in Garza County, Texas, operated by Aviator Energy, LLC in the MWH (Ellenburger) field.

3 wells

1,139bbl oil, last 12 months−32% vs prior year
Operator
Aviator Energy, LLC
County
Garza County
Field
MWH (Ellenburger)
RRC lease
8A-66503

Is your family on this lease?

Email me when this lease changes
Oil in Aug 2026
77 bbl
Reporting since
Jan 2020
Search

Did a relative own a share of this lease?

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

Checks stopped on this lease?

  • Operator

    Operator changed: Aviator Energy, LLC took over from Sierra Lima Oil & Gas, LLC in Dec 2025.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Sep 1, 2026 (last P-5 filed Oct 7, 2025).

SourceRailroad Commission production, P-5 and P-4 records, data through Aug 2026.

See why checks stop on this lease

Wells on this lease and around it

Where the state's map puts this lease's 3 wells, and what has been drilled or permitted within about 2 miles of them.
Map of the Post lease in Garza County, Texas: its 3 wells ringed, among 95 wells and 0 recent drilling locations in a picture about 6 miles across.
  • This lease3Its wells, ringed on the map: all producing
  • Drilling locations0Permits issued in the last two years
  • Producing wells71On a lease reporting production now
  • Not producing7Shut in, inactive or no lease on record
  • Plugged17The state's wellbore record says plugged

The 3 ringed dots are this lease's wells, each 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, 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/post-8a-66503"><img src="https://royaltyclerk.com/maps/lease-wells/post-8a-66503.svg" alt="Map of the Post lease in Garza County, Texas: its 3 wells ringed, among 95 wells and 0 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/post-8a-66503">Wells on the Post lease, Garza County, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

Other leases named Post

3 leases share this name in district 8A. The Railroad Commission gives each gas well its own number and each oil lease another, so one unit often shows up as several of these.

Production by month

Oil output fell 32% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for POST, Sep 2023 to Aug 2026. Oil output fell 32% over the last 12 months. 1,139 bbl in the 12 months through Aug 2026, against 1,663 bbl in the 12 months before.Last 12 months: 1,139 bblbbl per monthmcf per month00100252005030075400100500125Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for POST, Sep 2023 to Aug 2026. Oil output fell 32% over the last 12 months. 1,139 bbl in the 12 months through Aug 2026, against 1,663 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00100252005030075400100500125Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

From the state record

What owners ask about Post

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, 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 low producing leases for this lease, from Feb 1, 2016. Its file does not give the rate, so we compare your stub with the full 4.6%. That is for August 2026.
Source: Texas Comptroller, approved severance tax exemptions.
Check the tax on your stub
Who buys the oil and gas?
Oil: Energy Trans Crude Marketing LLC 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?
Two companies filed this lease's reports behind 2025 checks: Sierra Lima Oil & Gas, LLC and Aviator Energy, LLC. An owner paid by more than one of them gets a form from each. The operator is not always the company that pays, so go by the names 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 Post

33 years of state records, 1993–2026

POST since 1993

We read every monthly report the Railroad Commission holds, back to January 1993, and this lease was already producing then. It filed 404 monthly reports through August 2026.

Sold since 1993

$5.1 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
117,987 bbl
Gas sold
85,007 mcf
Best year
1993$335,000 sold
Last report
Aug 2026First: Jan 1993

Its best year was 1993: $335,000 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 1993: $335,000 of oil and gas soldPost: oil and gas sold each year from 1993 to 2026, at each month's prices. Its best year was 1993: $335,000 of oil and gas sold.Sold each year, at each month’s prices$0$100k$200k$300k$400kPeak 1993: $335k'93'95'00'05'10'15'20'26
Its best year was 1993: $335,000 of oil and gas soldPost: oil and gas sold each year from 1993 to 2026, at each month's prices. Its best year was 1993: $335,000 of oil and gas sold.Sold each year, at each month’s prices$0$100k$200k$300k$400kPeak 1993: $335k'93'00'05'10'15'20'26

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
Post: oil and gas sold each year
YearMonthsOil sold, bblGas sold, mcfSold for
2026 *89680$85,276
2025121,1960$77,869
2024122,1720$164,445
2023121,4240$110,448
2022121,6150$151,541
2021121,5820$105,609
2020121,59373$60,961
2019121,745760$101,461
2018121,680990$111,139
2017121,866912$97,896
2016122,031858$89,301
2015121,9011,007$96,689
2014122,0381,035$193,042
2013122,2711,208$226,605
2012122,2491,340$218,017
2011122,2601,067$218,757
2010122,6141,032$211,691
2009122,6671,199$167,801
2008122,9731,139$299,470
2007122,8011,461$212,616
2006122,9892,150$211,690
2005123,4841,940$212,274
2004123,3802,098$152,621
2003123,7302,457$129,506
2002123,9552,351$110,170
2001123,7684,257$118,409
2000125,0176,379$178,074
1999127,2929,839$156,554
1998127,8568,469$126,062
1997122,9318,057$84,150
1996123,7622,029$86,837
1995125,2933,243$103,456
1994128,4816,799$156,700
19931216,40310,858$335,009

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

Where the gas went

All of the gas went to flaring in the 9 months reported

Flaring peaked at 100.0% of the gas in Sep 2023.

All of the gas went to flaring in the 9 months reportedShare of POST gas by disposition code each month, Sep 2023 to Aug 2026. All of the gas went to flaring in the 9 months reported. Flaring peaked at 100.0% of the gas in Sep 2023.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to flaring in the 9 months reportedShare of POST gas by disposition code each month, Sep 2023 to Aug 2026. All of the gas went to flaring in the 9 months reported. Flaring peaked at 100.0% of the gas in Sep 2023.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

100.0% of the gas flared in the 9 months reported. 9 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Dec 2025

Operators of this lease over timeFasken Oil and Ranch, Ltd., Jan 2020 to May 2024; Sierra Lima Oil & Gas, LLC, Jun 2024 to Nov 2025; Aviator Energy, LLC, Dec 2025 to Aug 20262020202120222023202420252026Changed Jun 2024Changed Dec 2025Fasken Oil and Ranch, Ltd.Jan 2020 to May 2024Sierra Lima Oil & Gas, LLCJun 2024 to Nov 2025Aviator Energy, LLCDec 2025 to now
Operators of this lease over timeFasken Oil and Ranch, Ltd., Jan 2020 to May 2024; Sierra Lima Oil & Gas, LLC, Jun 2024 to Nov 2025; Aviator Energy, LLC, Dec 2025 to Aug 20262020202120222023202420252026Changed Jun 2024Changed Dec 2025Fasken Oil and Ranch, Ltd.Jan 2020 to May 2024Sierra Lima Oil & Gas, LLCJun 2024 to Nov 2025Aviator Energy, LLCDec 2025 to now

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

3 wells on this lease

Wells on POST
API numberWellStatusCompleted
42-169-32971Post 3001ActiveApr 28, 1990
42-169-33014Post 9302ActiveDec 1, 1990
42-169-33027Post 3002ActiveApr 18, 1991

SourceTexas Railroad Commission production records and full wellbore file.

Other leases on these wells

The Railroad Commission files the same API numbers under one more lease too: a well keeps its number when it moves into a unit or is recompleted under another lease. A deed older than the unit may name one of them.

  • Post, Garza County · 2 shared wells

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers100Aug 1, 2021–
Davis Gas Processing, Inc.Casinghead gasGathers100Jan 1, 2006Aug 1, 2021
Davis Gas Processing, Inc.Casinghead gasBuys100Jan 1, 2006Aug 1, 2021
Sunoco Ptnrs. Mktg.&terminals LPOilGathers100Apr 1, 2019Aug 1, 2021
Nominator Not Required / Swr 31Casinghead gasNominates100Dec 1, 2006Apr 1, 2019
Mission Petroleum Carriers, Inc.OilGathers100Mar 1, 2005Apr 1, 2019

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

Who buys my oilOil price check

347.79 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 347.79 and 348 acres. Use the acres from your own division order for the well you are paid on.

Check your decimal on this lease
Permits for Post
API numberWell no.Acreson the permit
42-169-330149302347.79
42-169-330273002347.79
42-169-329713001348

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for POST
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Aug 2026Aviator Energy,77199000$83.90$2.78
Jul 2026Aviator Energy,189251000$80.46$2.89
Jun 2026Aviator Energy,1560000$84.81$3.15
May 2026Aviator Energy,139135000$102.13$2.94
Apr 2026Aviator Energy,101198000$100.32$2.77
Mar 2026Aviator Energy,147112000$91.38$3.04
Feb 2026Aviator Energy,12026000$64.51$3.62
Jan 2026Aviator Energy,3547000$60.04$7.72
Dec 2025Aviator Energy,19000$57.97$4.26
Nov 2025Sierra Lima26116000$60.06$3.79
Oct 2025Sierra Lima00000$60.89$3.19
Sep 2025Sierra Lima148179000$63.96$2.97
Aug 2025Sierra Lima146175000$64.86$2.91
Jul 2025Sierra Lima130117000$68.39$3.20
Jun 2025Sierra Lima135119000$68.17$3.02
May 2025Sierra Lima136119000$62.17$3.12
Apr 2025Sierra Lima137179000$63.54$3.42
Mar 2025Sierra Lima95120000$68.24$4.12
Feb 2025Sierra Lima8363000$71.53$4.19
Jan 2025Sierra Lima1320000$75.74$4.13
Dec 2024Sierra Lima341364000$70.12$3.01
Nov 2024Sierra Lima109183000$69.95$2.12
Oct 2024Sierra Lima117182000$71.99$2.20
Sep 2024Sierra Lima102183000$70.24$2.28
Aug 2024Sierra Lima145177000$76.68$1.99
Jul 2024Sierra Lima137179000$81.80$2.07
Jun 2024Sierra Lima2770000$79.77$2.54
May 2024Fasken Oil13817793093$80.02$2.12
Apr 2024Fasken Oil12818290090$85.35$1.60
Mar 2024Fasken Oil15017993093$81.28$1.49
Feb 2024Fasken Oil13318287087$77.25$1.72
Jan 2024Fasken Oil1491841240124$74.15$3.18
Dec 2023Fasken Oil13201240124$71.90$2.52
Nov 2023Fasken Oil1321811200120$77.69$2.71
Oct 2023Fasken Oil1291781240124$85.64$2.98
Sep 2023Fasken Oil13101200120$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

OperatorAviator Energy, LLCFieldMWH (Ellenburger)CountyGarza County

Aviator Energy, LLC in Garza County

All Aviator Energy, LLC leases →

MWH (Ellenburger) field

No other producing leases in this field are in our data yet.

Leases within 10 km

Drilling permits within 10 km