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Royalty Clerk

Texas oil lease · RRC district 01 · Lease 18605

Producing

LAVACA UNIT

Lavaca Unit is an oil lease in Atascosa County, Texas, operated by Javelin Energy Partners Mgmt LLC in the Briscoe Ranch (Eagleford) field. The Railroad Commission shows 2,533 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

2,533bbl oil, last 12 months−37% vs prior year
Operator
Javelin Energy Partners Mgmt LLC
County
Atascosa County
Field
Briscoe Ranch (Eagleford)
RRC lease
01-18605

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County · RRC district 01Open Atascosa County →
Gas, last 12 months
3 mcf
Oil in Jul 2026
4 bbl
Reporting to the state
since Jan 2020
Wells
1

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 37% over the last 12 months

2,533 bbl in the 12 months through Jul 2026, against 4,017 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 37% over the last 12 monthsMonthly oil production and gas for LAVACA UNIT, Aug 2023 to Jul 2026. Oil output fell 37% over the last 12 months. 2,533 bbl in the 12 months through Jul 2026, against 4,017 bbl in the 12 months before.Last 12 months: 2,533 bblbbl per monthmcf per month00200504001006001508002001,000250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 37% over the last 12 monthsMonthly oil production and gas for LAVACA UNIT, Aug 2023 to Jul 2026. Oil output fell 37% over the last 12 months. 2,533 bbl in the 12 months through Jul 2026, against 4,017 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00200504001006001508002001,000250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18605, district 01. 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.

99% of the gas went to flaring in the last 12 months

Flaring peaked at 100.0% of the gas in Jan 2024.

  • Transmission line (2)
  • Flared (4)
99% of the gas went to flaring in the last 12 monthsShare of LAVACA UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to flaring in the last 12 months. Flaring peaked at 100.0% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to flaring in the last 12 monthsShare of LAVACA UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to flaring in the last 12 months. Flaring peaked at 100.0% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 18605, district 01. Reported through Jul 2026.

Transmission line (2)

Sold straight into a pipeline without processing. Processing fees on your statement would be worth asking about.

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, 98.9% of the gas was flared. 10 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 Apr 2022

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 timeVenado Operating Company LLC, Jan 2020 to Mar 2022; Javelin Energy Partners Mgmt LLC, Apr 2022 to Jul 20262020202120222023202420252026Changed Apr 2022Venado Operating Company LLCJan 2020 to Mar 2022Javelin Energy Partners Mgmt…Apr 2022 to now
Operators of this lease over timeVenado Operating Company LLC, Jan 2020 to Mar 2022; Javelin Energy Partners Mgmt LLC, Apr 2022 to Jul 20262020202120222023202420252026Changed Apr 2022Venado Operating Company LLCJan 2020 to Mar 2022Javelin Energy Partners Mgmt LLCApr 2022 to now

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

Wells

1 well on this lease

Every well the Railroad Commission links to oil lease 18605 in district 01. The API number is the state’s ID for a well.
Wells on LAVACA UNIT
API numberWell no.Status
42-013-353011HActive

SourceTexas Railroad Commission Wellbore Query, district 01, lease 18605.

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

    Springfield Pipeline LLC gathers it.

    100% of it, on the list since Dec 1, 2023

  • Gas from oil wells

    Javelin Marketing, LLC buys it; Springfield Pipeline LLC gathers it.

    Javelin Marketing, LLC buys it: 100% of it, on the list since Dec 1, 2023 · Springfield Pipeline LLC gathers it: 100% of it, on the list since Dec 1, 2023

Companies that used to be listed: Targa Midstream Services LLC (gathers it, until Dec 1, 2023); Tenaska Marketing Ventures (buys it, until Dec 1, 2023); Eastex Crude Company, LLC (gathers it, until Dec 1, 2023); Bp Products North America Inc. (gathers it, until Jan 1, 2023); Eastex Crude Company (gathers it, until Jan 1, 2023); Pilot Travel Centers LLC (gathers it, until Jan 1, 2023).

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

639.27 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
11 not plugged
Horizontal
1
First completion
Jun 9, 2015
Latest permit
Feb 25, 2015
Wells and acres on the permits for Lavaca Unit
API numberWell no.Acreson the permit
42-013-353011H639.27

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.

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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 LAVACA UNIT 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.

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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 LAVACA UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Javelin Energy40000$80.46$2.89
Jun 2026Javelin Energy00000$84.81$3.15
May 2026Javelin Energy348463000$102.13$2.94
Apr 2026Javelin Energy436305000$100.32$2.77
Mar 2026Javelin Energy36146000$91.38$3.04
Feb 2026Javelin Energy151164000$64.51$3.62
Jan 2026Javelin Energy1860000$60.04$7.72
Dec 2025Javelin Energy101139000$57.97$4.26
Nov 2025Javelin Energy1230000$60.06$3.79
Oct 2025Javelin Energy389461000$60.89$3.19
Sep 2025Javelin Energy759811000$63.96$2.97
Aug 2025Javelin Energy00330$64.86$2.91
Jul 2025Javelin Energy00880$68.39$3.20
Jun 2025Javelin Energy288309000$68.17$3.02
May 2025Javelin Energy174163000$62.17$3.12
Apr 2025Javelin Energy369315000$63.54$3.42
Mar 2025Javelin Energy368472000$68.24$4.12
Feb 2025Javelin Energy3672602090209$71.53$4.19
Jan 2025Javelin Energy3754781730173$75.74$4.13
Dec 2024Javelin Energy4253181750175$70.12$3.01
Nov 2024Javelin Energy4234452080208$69.95$2.12
Oct 2024Javelin Energy4453252290229$71.99$2.20
Sep 2024Javelin Energy399472000$70.24$2.28
Aug 2024Javelin Energy384324000$76.68$1.99
Jul 2024Javelin Energy3664631595154$81.80$2.07
Jun 2024Javelin Energy300322000$79.77$2.54
May 2024Javelin Energy322334000$80.02$2.12
Apr 2024Javelin Energy34431186086$85.35$1.60
Mar 2024Javelin Energy35532792092$81.28$1.49
Feb 2024Javelin Energy31331146046$77.25$1.72
Jan 2024Javelin Energy35032466066$74.15$3.18
Dec 2023Javelin Energy323499000$71.90$2.52
Nov 2023Javelin Energy266135000$77.69$2.71
Oct 2023Javelin Energy206173000$85.64$2.98
Sep 2023Javelin Energy218193000$89.43$2.64
Aug 2023Javelin Energy133214000$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

OperatorJavelin Energy Partners Mgmt LLCFieldBriscoe Ranch (Eagleford)CountyAtascosa County

Javelin Energy Partners Mgmt LLC in Atascosa County

All Javelin Energy Partners Mgmt LLC leases →

Briscoe Ranch (Eagleford) field

All leases in this field →

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 18605, district 01, 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.