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Texas oil lease

Producing

MELLENBRUCH UNIT

Mellenbruch Unit is an oil lease in La Salle County, Texas, operated by Verdun Oil Ef II LLC in the Eagleville (Eagle Ford-1) field.

8 wells

12,648bbl oil, last 12 months−20% vs prior year
Operator
Verdun Oil Ef II LLC
County
La Salle County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-18655

48 royalty accounts on the county roll

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Gas, last 12 months
54,564 mcf
Oil in Aug 2026
902 bbl
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  • Operator

    Operator changed: Verdun Oil Ef II LLC took over from Ep Energy E&P Company, LLC in Mar 2025.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Nov 17, 2025 (last P-5 filed Mar 20, 2025).

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

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Wells on this lease and around it

Where the state's map puts this lease's 8 wells, and what has been drilled or permitted within about 2 miles of them.
Map of the Mellenbruch Unit lease in La Salle County, Texas: its 8 wells ringed, among 79 wells and 1 recent drilling location in a picture about 6 miles across.
  • This lease8Its wells, ringed on the map: all producing
  • Drilling locations1Permits issued in the last two years
  • Producing wells62On a lease reporting production now
  • Not producing13Shut in, inactive or no lease on record
  • Plugged4The state's wellbore record says plugged

The 8 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.

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

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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/mellenbruch-unit-01-18655"><img src="https://royaltyclerk.com/maps/lease-wells/mellenbruch-unit-01-18655.svg" alt="Map of the Mellenbruch Unit lease in La Salle County, Texas: its 8 wells ringed, among 79 wells and 1 recent drilling location 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/mellenbruch-unit-01-18655">Wells on the Mellenbruch Unit lease, La Salle County, Texas</a> by Royalty Clerk, from Railroad Commission of Texas records</p>

Other leases named Mellenbruch Unit

5 leases share this name in district 01. 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 20% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for MELLENBRUCH UNIT, Sep 2023 to Aug 2026. Oil output fell 20% over the last 12 months. 12,648 bbl in the 12 months through Aug 2026, against 15,771 bbl in the 12 months before.Last 12 months: 12,648 bblbbl per monthmcf per month005002,0001,0004,0001,5006,0002,0008,0002,50010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 20% over the last 12 monthsMonthly oil production and gas for MELLENBRUCH UNIT, Sep 2023 to Aug 2026. Oil output fell 20% over the last 12 months. 12,648 bbl in the 12 months through Aug 2026, against 15,771 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005002,0001,0004,0001,5006,0002,0008,0002,50010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

From the state record

What owners ask about Mellenbruch Unit

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: Eastex Crude Company and Shell Trading (Us) Company gather it. Gas from oil wells: Upstream Energy Services buys it; Enerfin Field Services 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: Ep Energy E&P Company, LLC and Verdun Oil Ef II 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.
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Free tools, already on this lease

Ask a question about Mellenbruch Unit

33 years of state records, 1993–2026

MELLENBRUCH UNIT since 2016

We read every monthly report the Railroad Commission holds, back to January 1993. This lease first reported in January 2016. It filed 128 monthly reports through August 2026.

Sold since 2016

$27.3 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
438,899 bbl
Gas sold
988,982 mcf
Best year
2019$6.4 million sold
Last report
Aug 2026First: Jan 2016

Its best year was 2019: $6.4 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: $6.4 million of oil and gas soldMellenbruch Unit: oil and gas sold each year from 2016 to 2026, at each month's prices. Its best year was 2019: $6.4 million of oil and gas sold.Sold each year, at each month’s prices$0$2.5M$5M$7.5MPeak 2019: $6.5M20162017201820192020202120222023202420252026
Its best year was 2019: $6.4 million of oil and gas soldMellenbruch Unit: oil and gas sold each year from 2016 to 2026, at each month's prices. Its best year was 2019: $6.4 million of oil and gas sold.Sold each year, at each month’s prices$0$2.5M$5M$7.5MPeak 2019: $6.5M'16'17'18'19'20'21'22'23'24'25'26

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
Mellenbruch Unit: oil and gas sold each year
YearMonthsOil sold, bblGas sold, mcfSold for
2026 *88,55817,562$780,742
20251214,98424,410$1,064,915
20241215,41544,043$1,279,211
20231220,48258,535$1,735,636
20221224,36076,478$2,828,140
20211234,840116,789$2,768,579
20201268,904203,167$3,210,446
201912105,161214,203$6,467,628
20181215,31929,021$1,120,648
20171230,13641,964$1,662,986
201612100,740162,810$4,401,845

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

Where the gas went

Since May 2026 the lease's gas goes to a transmission line instead of lease fuel

Flaring peaked at 11.4% of the gas in Dec 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since May 2026 the lease's gas goes to a transmission line instead of lease fuelShare of MELLENBRUCH UNIT gas by disposition code each month, Sep 2023 to Aug 2026. Since May 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 11.4% of the gas in Dec 2025.Share of the lease’s gas by disposition code, per month0%50%100%May 2026: fuel to lineFlared 11.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since May 2026 the lease's gas goes to a transmission line instead of lease fuelShare of MELLENBRUCH UNIT gas by disposition code each month, Sep 2023 to Aug 2026. Since May 2026 the lease's gas goes to a transmission line instead of lease fuel. Flaring peaked at 11.4% of the gas in Dec 2025.Share of gas by disposition code0%50%100%May 26: fuel to lineFlared 11.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

  • Transmission line (2)

    50% · 27,295 mcf

  • Lease fuel (1)

    45% · 24,377 mcf

  • Flared (4)

    5.3% · 2,892 mcf

5.3% of the gas flared in the last 12 months. 19 months above 3%.

Who has run this lease

The operator changed 2 times, most recently in Mar 2025

Operators of this lease over timeEp Energy E&P Company, L.P., Jan 2020 to Apr 2022; Ep Energy E&P Company, LLC, May 2022 to Feb 2025; Verdun Oil Ef II LLC, Mar 2025 to Aug 20262020202120222023202420252026Changed May 2022Changed Mar 2025Ep Energy E&P Company, L.P.Jan 2020 to Apr 2022Ep Energy E&P Company, LLCMay 2022 to Feb 2025Verdun Oil Ef II LLCMar 2025 to now
Operators of this lease over timeEp Energy E&P Company, L.P., Jan 2020 to Apr 2022; Ep Energy E&P Company, LLC, May 2022 to Feb 2025; Verdun Oil Ef II LLC, Mar 2025 to Aug 20262020202120222023202420252026Changed May 2022Changed Mar 2025Ep Energy E&P Company, L.P.Jan 2020 to Apr 2022Ep Energy E&P Company, LLCMay 2022 to Feb 2025Verdun Oil Ef II LLCMar 2025 to now

SourceTexas Railroad Commission Production Data Query, through Aug 2026.

8 wells on this lease

Wells on MELLENBRUCH UNIT
API numberWellStatusCompleted
42-283-35226Mellenbruch Unit 10HActiveJul 28, 2015
42-283-35227Mellenbruch Unit 11HActiveJul 22, 2015
42-283-35229Mellenbruch Unit 12HActiveAug 5, 2015
42-283-36671Mellenbruch Unit 104HActiveAug 20, 2019
42-283-36675Mellenbruch Unit 105HActiveAug 20, 2019
42-283-36676Mellenbruch Unit 106HActiveAug 19, 2019
42-283-36677Mellenbruch Unit 107HActiveAug 22, 2019
42-283-36678Mellenbruch Unit 108HActiveAug 19, 2019

SourceTexas Railroad Commission production records and full wellbore file.

Other leases on these wells

The Railroad Commission files the same API numbers under these leases 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.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Eastex Crude CompanyOilGathers80Feb 1, 2018
Shell Trading (Us) CompanyOilGathers20Feb 1, 2018
Upstream Energy ServicesCasinghead gasBuys100Feb 1, 2018
Enerfin Field Services LLCCasinghead gasGathers100Feb 1, 2018

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

Who buys my oilOil price check

860.94 acres on the newest permit

  • Good to know

    8 well completions are on file for this lease

    The count is of completions in the wellbore records, so a well completed more than once is counted each time. Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

  • 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 Mellenbruch Unit
API numberWell no.Acreson the permit
42-283-36671104H860.94
42-283-36675105H860.94
42-283-36676106H860.94
42-283-36677107H860.94
42-283-36678108H860.94
42-283-3522610H860.94
42-283-3522711H860.94
42-283-3522912H860.94

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

Unit decimal checker

On the La Salle County roll

La Salle County Appraisal District

2026 roll
Owners
55
Accounts
55
Appraised in all
$1.7M$1,654,460

Each square is one account

  • Royalty48
  • Overriding royalty6
  • Working interest1

SourceLa Salle County Appraisal District, 2026 mineral roll (source), read Oct 8, 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 MELLENBRUCH UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Aug 2026Verdun Oil9029564,9122,911106$83.90$2.78
Jul 2026Verdun Oil1,0981,0744,3132,520156$80.46$2.89
Jun 2026Verdun Oil9019234,3152,027295$84.81$3.15
May 2026Verdun Oil1,1671,1664,3702,222253$102.13$2.94
Apr 2026Verdun Oil1,1461,2744,1791,709446$100.32$2.77
Mar 2026Verdun Oil1,1371,0094,7092,239231$91.38$3.04
Feb 2026Verdun Oil1,0601,1154,3871,924313$64.51$3.62
Jan 2026Verdun Oil1,0471,0413,9552,010129$60.04$7.72
Dec 2025Verdun Oil1,1281,0683,4101,428389$57.97$4.26
Nov 2025Verdun Oil9859565,7712,925172$60.06$3.79
Oct 2025Verdun Oil1,0471,0266,0733,214195$60.89$3.19
Sep 2025Verdun Oil1,0301,1204,1702,166207$63.96$2.97
Aug 2025Verdun Oil1,2341,2294,9632,939257$64.86$2.91
Jul 2025Verdun Oil1,3991,4183,5502,12095$68.39$3.20
Jun 2025Verdun Oil1,3151,2184,4452,491129$68.17$3.02
May 2025Verdun Oil1,2111,2964,1982,131305$62.17$3.12
Apr 2025Verdun Oil2,1182,0915,3752,725165$63.54$3.42
Mar 2025Verdun Oil1,4051,3142,871819317$68.24$4.12
Feb 2025Ep Energy8688782,095569184$71.53$4.19
Jan 2025Ep Energy1,1951,3702,972883184$75.74$4.13
Dec 2024Ep Energy1,5331,5503,9041,511165$70.12$3.01
Nov 2024Ep Energy1,2391,1104,2822,216287$69.95$2.12
Oct 2024Ep Energy1,0561,0816,2953,727180$71.99$2.20
Sep 2024Ep Energy1,1981,1196,3303,890408$70.24$2.28
Aug 2024Ep Energy1,1451,1647,2694,67776$76.68$1.99
Jul 2024Ep Energy1,2571,2106,8174,29561$81.80$2.07
Jun 2024Ep Energy1,2741,3156,9964,65937$79.77$2.54
May 2024Ep Energy1,3431,3656,5484,24328$80.02$2.12
Apr 2024Ep Energy1,3581,5396,1333,8784$85.35$1.60
Mar 2024Ep Energy1,5171,4546,6024,046154$81.28$1.49
Feb 2024Ep Energy1,2861,1784,9383,13245$77.25$1.72
Jan 2024Ep Energy1,3441,3305,7933,76924$74.15$3.18
Dec 2023Ep Energy1,3261,3316,1613,98647$71.90$2.52
Nov 2023Ep Energy1,4061,4206,6284,409107$77.69$2.71
Oct 2023Ep Energy1,5381,5946,9564,94374$85.64$2.98
Sep 2023Ep Energy1,4991,4586,8844,90929$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.

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Nearby

This lease belongs to

OperatorVerdun Oil Ef II LLCFieldEagleville (Eagle Ford-1)CountyLa Salle County

Verdun Oil Ef II LLC in La Salle County

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