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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 42649

Producing

MAMBA 17

Mamba 17 is an oil lease in Reeves County, Texas, operated by VTX Energy Operating, LLC in the Wolfbone (Trend Area) field. The Railroad Commission shows 10,855 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 2 wells

10,855bbl oil, last 12 months−12% vs prior year
Operator
VTX Energy Operating, LLC
County
Reeves County
Field
Wolfbone (Trend Area)
RRC lease
08-42649

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Where it sits

This county

Reeves CountyReevesWinklerWardLovingReeves County
Reeves County · RRC district 08Open Reeves County →
Gas, last 12 months
8,864 mcf
Oil in Jul 2026
659 bbl
Reporting to the state
since Jan 2020
Wells
2

Production

Month by month, from the state record

What the Railroad Commission says this oil lease produced. Oil is in barrels (bbl). Gas is in thousand cubic feet (mcf).

Oil output fell 12% over the last 12 months

10,855 bbl in the 12 months through Jul 2026, against 12,278 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 12% over the last 12 monthsMonthly oil production and gas for MAMBA 17, Aug 2023 to Jul 2026. Oil output fell 12% over the last 12 months. 10,855 bbl in the 12 months through Jul 2026, against 12,278 bbl in the 12 months before.Last 12 months: 10,855 bblbbl per monthmcf per month005005001,0001,0001,5001,5002,0002,0002,5002,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 12% over the last 12 monthsMonthly oil production and gas for MAMBA 17, Aug 2023 to Jul 2026. Oil output fell 12% over the last 12 months. 10,855 bbl in the 12 months through Jul 2026, against 12,278 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005005001,0001,0001,5001,5002,0002,0002,5002,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 42649, district 08. Reported through Jul 2026. The state revises recent months.

Gas disposition

Where the gas went

Every month the operator tells the state where each mcf of gas went, using a code. The code decides how your gas is paid.

95% of the gas went to a processing plant in the last 12 months

Flaring peaked at 29.2% of the gas in May 2025.

  • Processing plant (3)
  • Flared (4)
95% of the gas went to a processing plant in the last 12 monthsShare of MAMBA 17 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a processing plant in the last 12 months. Flaring peaked at 29.2% of the gas in May 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 29.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
95% of the gas went to a processing plant in the last 12 monthsShare of MAMBA 17 gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a processing plant in the last 12 months. Flaring peaked at 29.2% of the gas in May 2025.Share of gas by disposition code0%50%100%Flared 29.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 42649, district 08. Reported through Jul 2026.

Processing plant (3)

Sent to a gas plant that pulls out natural gas liquids. Your statement should show plant products, and may show processing fees.

Flared (4)

Burned off or vented, not sold. It pays no royalty. More than 3% in a month is worth watching.

Over the last 12 months, 5.0% of the gas was flared. 15 months went above 3%, which we mark in the ledger below.

Operator history

Who has run this lease

The operator runs the wells and pays your royalty. When the operator changes, payments often slip for a month or two.

The operator changed once, most recently in Sep 2023

If your statements skip or shrink around a change, ask the new operator's owner relations department whether the month is in suspense.

Operators of this lease over timePri Operating, LLC, Jan 2020 to Aug 2023; VTX Energy Operating, LLC, Sep 2023 to Jul 20262020202120222023202420252026Changed Sep 2023Pri Operating, LLCJan 2020 to Aug 2023VTX Energy Operating, LLCSep 2023 to now
Operators of this lease over timePri Operating, LLC, Jan 2020 to Aug 2023; VTX Energy Operating, LLC, Sep 2023 to Jul 20262020202120222023202420252026Changed Sep 2023Pri Operating, LLCJan 2020 to Aug 2023VTX Energy Operating, LLCSep 2023 to now

SourceTexas Railroad Commission Production Data Query, operator by month. Reported through Jul 2026.

Wells

2 wells on this lease

Every well the Railroad Commission links to oil lease 42649 in district 08. The API number is the state’s ID for a well.
Wells on MAMBA 17
API numberWell no.Status
42-389-330011Active
42-389-342212HActive

SourceTexas Railroad Commission Wellbore Query, district 08, lease 42649.

Who buys and gathers

Who moves and buys this lease's production

The operator files a Form P-4 with the Railroad Commission naming the companies authorised to gather and buy the oil and gas. The buyer's price is the one your royalty is figured on.

  • Oil

    Oryx Delaware Oil Transport LLC and Plains Marketing, L.p. gather it.

    Oryx Delaware Oil Transport LLC gathers it: 50% of it, on the list since Jan 1, 2020 · Plains Marketing, L.p. gathers it: 50% of it, on the list since Oct 1, 2023

  • Gas from oil wells

    Et Gathering & Processing LLC buys it; Energy Transfer Company gathers it.

    Et Gathering & Processing LLC buys it: 100% of it, on the list since Oct 1, 2023 · Energy Transfer Company gathers it: 100% of it, on the list since Nov 1, 2015

Companies that used to be listed: Etc Texas P/L, LTD (buys it, until Oct 1, 2023); United Energy Trading LLC (gathers it, until Oct 1, 2023); Oryx So. Delaware Ogt LLC (gathers it, until Jan 1, 2020); Energy Transfer Company (buys it, until Aug 1, 2019); Shell Trading (Us) Company (gathers it, until Aug 1, 2019).

SourceRailroad Commission of Texas, Form P-4 file, dated Sep 24, 2026 (source). A listed company is authorised to move or buy the production; the state does not say what it paid.

Who buys my oil and gasIs my oil price fair?

Unit and wells

640.54 acres on the newest permit

Acres and wells as the operator filed them on its Railroad Commission drilling permits. Your decimal is your net acres over the unit acres, so this is the number to hold your division order against.
Wells on the permits
22 not plugged
Horizontal
1
First completion
Jan 24, 2012
Latest permit
Apr 30, 2014
Wells and acres on the permits for Mamba 17
API numberWell no.Acreson the permit
42-389-342212H640.54
42-389-330011640.54

SourceRailroad Commission of Texas, drilling permits and wellbore file, Sep 26, 2026 (source 1, source 2). The acres are what the operator filed; they are not a survey.

Check my decimal against the unit

Estimator

Estimate your royalty for this lease

A rough check before you look at a statement: the state volumes times your decimal, priced at WTI and Henry Hub.

Estimator

What could your check be?

Your decimal interest is the small number on your division order that says what share of the whole lease (8/8ths) is yours. Type it in and we apply it to what the state says MAMBA 17 sold each month.

For example 0.00097656, or a fraction like 1/1024.

Dollars per barrel. Your statements show the gap your operator uses. Leave 0 to price oil at WTI.

Your estimate appears here

Enter your decimal to see an estimated royalty for each of the last 12 months this lease reported. Nothing you type leaves your browser.

An estimate, not your check

It ignores gathering and processing fees, taxes, plant products and the price your operator actually gets, so your statement will differ. Use it as a ceiling to compare against. Regional gas prices are often below Henry Hub.

Ledger

36 months, newest first

Compare these numbers with your statements. Your share of a month is the “Oil sold” volume times your decimal. Scroll sideways on a phone.
Monthly production, disposition and prices for MAMBA 17
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026VTX Energy659453459329130$80.46$2.89
Jun 2026VTX Energy37623316513134$84.81$3.15
May 2026VTX Energy5194923383380$102.13$2.94
Apr 2026VTX Energy9638371,01598431$100.32$2.77
Mar 2026VTX Energy9951,10891186843$91.38$3.04
Feb 2026VTX Energy89789282275468$64.51$3.62
Jan 2026VTX Energy1,0891,00587885523$60.04$7.72
Dec 2025VTX Energy1,0321,16990385053$57.97$4.26
Nov 2025VTX Energy1,2451,2101,0421,0420$60.06$3.79
Oct 2025VTX Energy1,4861,4901,1961,15343$60.89$3.19
Sep 2025VTX Energy78373852850919$63.96$2.97
Aug 2025VTX Energy8117636076070$64.86$2.91
Jul 2025VTX Energy79381553849642$68.39$3.20
Jun 2025VTX Energy8688454154123$68.17$3.02
May 2025VTX Energy832852554392162$62.17$3.12
Apr 2025VTX Energy847878668553115$63.54$3.42
Mar 2025VTX Energy81686988587015$68.24$4.12
Feb 2025VTX Energy97193371870018$71.53$4.19
Jan 2025VTX Energy1,0741,1627657614$75.74$4.13
Dec 2024VTX Energy1,1441,03286584421$70.12$3.01
Nov 2024VTX Energy1,0411,1148138121$69.95$2.12
Oct 2024VTX Energy1,1321,0097137094$71.99$2.20
Sep 2024VTX Energy1,2491,19887582550$70.24$2.28
Aug 2024VTX Energy1,5111,50398596421$76.68$1.99
Jul 2024VTX Energy1,5041,6061,2091,2018$81.80$2.07
Jun 2024VTX Energy1,23999190685452$79.77$2.54
May 2024VTX Energy84292087084822$80.02$2.12
Apr 2024VTX Energy9009889299218$85.35$1.60
Mar 2024VTX Energy9951,1728368351$81.28$1.49
Feb 2024VTX Energy1,2521,37172470321$77.25$1.72
Jan 2024VTX Energy1,1981,1661,1281,08147$74.15$3.18
Dec 2023VTX Energy1,4491,3701,7761,7760$71.90$2.52
Nov 2023VTX Energy1,7441,7731,4231,39924$77.69$2.71
Oct 2023VTX Energy2,0012,1591,0731,0667$85.64$2.98
Sep 2023VTX Energy1,7721,509903799104$89.43$2.64
Aug 2023Pri Operating,1,6181,70699797720$81.39$2.58

No report filed More than 3% of gas flared

SourceVolumes: Texas Railroad Commission Production Data Query, reported through Jul 2026. Prices: EIA WTI Cushing spot and Henry Hub spot, monthly, through Aug 2026. “Gas sold” is gas sent to a transmission line (code 2) or a plant (code 3).

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Around this lease

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Everything on this page connects to the operator, field and county records. Start from any of them.

This lease belongs to

OperatorVTX Energy Operating, LLCFieldWolfbone (Trend Area)CountyReeves County

VTX Energy Operating, LLC in Reeves County

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Wolfbone (Trend Area) field

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Leases within 10 km

Found by the location of their wells.

Drilling permits within 10 km

How to read this page

Questions owners ask

What is a decimal interest?

It is your share of the whole lease, written as a decimal. A 1/4 royalty on 5 net acres in a 1,280-acre unit is 1/4 × 5 ÷ 1,280 = 0.00097656. Your division order states yours.

How do I use this page to check a royalty check?

Take the “Oil sold” volume for the month the check covers and multiply it by your decimal. The answer should match the barrels on your statement. If it does not, upload the statement and we will show where the two differ.

Why is the newest month Jul 2026?

The Railroad Commission publishes production two to three months after the fact and revises recent months. We re-pull the latest three months on every update.

Does this page show what my check should be?

No. It shows what the state recorded. Prices, fees and taxes depend on your lease and on what your operator gets for the oil and gas. The estimator gives a ceiling to compare against.

Sources and method

Where these numbers come from

  • Production and disposition by month: Texas Railroad Commission Production Data Query, oil lease 42649, district 08, reported through Jul 2026.
  • Wells: Texas Railroad Commission Wellbore Query.
  • Prices: U.S. Energy Information Administration, WTI Cushing spot and Henry Hub spot, monthly.
  • Page updated Sep 28, 2026.

We show the state’s numbers as filed. Where the state has no report for a month, we say so instead of guessing.

FAQ

Questions about MAMBA 17

Who operates the MAMBA 17 lease?

The Railroad Commission lists VTX Energy Operating, LLC (operator number 101377) as the operator of this lease in Reeves County, Texas. The operator history on this page shows earlier operators and when the record changed.

How much has the MAMBA 17 lease produced?

The lease reported 10,855 bbl of oil and 8,864 mcf of gas in the last 12 months through Jul 2026. Monthly figures for 36 months are in the ledger on this page, taken from the Railroad Commission's production data.

Does this page show who owns the royalty?

No. Railroad Commission records show who operates a lease and what it reported, not who owns the minerals or receives royalty. Your division order and royalty stub name the lease and your decimal interest.

How do I check my royalty stub against this lease?

Multiply the lease's volume for a month by your decimal interest and compare it with the barrels and mcf on your stub for the same month. The two are seldom identical, since sales and reporting months can differ, but a large gap is worth a question to the operator.

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