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Royalty Clerk

Texas oil lease · RRC district 03 · Lease 18570

Producing

JOHNSON UNIT

Johnson Unit is an oil lease in Lee County, Texas, operated by San Dia Producing Company in the Giddings (Austin Chalk-3) field. The Railroad Commission shows 59 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 1 well

59bbl oil, last 12 months−94% vs prior year
Operator
San Dia Producing Company
County
Lee County
Field
Giddings (Austin Chalk-3)
RRC lease
03-18570

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Where it sits

This county

Lee CountyLeeWilliamsonBastropWashingtonBrazosBurlesonAustinMilamLee County
Lee County · RRC district 03Open Lee County →
Oil in Jul 2026
2 bbl
Reporting to the state
since Jan 2020
Wells
1
Data through
Jul 2026

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 94% over the last 12 months

59 bbl in the 12 months through Jul 2026, against 1,055 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 94% over the last 12 monthsMonthly oil production and gas for JOHNSON UNIT, Aug 2023 to Jul 2026. Oil output fell 94% over the last 12 months. 59 bbl in the 12 months through Jul 2026, against 1,055 bbl in the 12 months before.Last 12 months: 59 bblbbl per monthmcf per month005050100100150150200200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 94% over the last 12 monthsMonthly oil production and gas for JOHNSON UNIT, Aug 2023 to Jul 2026. Oil output fell 94% over the last 12 months. 59 bbl in the 12 months through Jul 2026, against 1,055 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005050100100150150200200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18570, district 03. 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.

All of the gas went to a transmission line in the only month reported

Each bar is one month. Colors are the disposition codes the operator reported.

All of the gas went to a transmission line in the only month reportedShare of JOHNSON UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the only month reported. Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the only month reportedShare of JOHNSON UNIT gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the only month reported. Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 18570, district 03. Reported through Jul 2026.

Transmission line (2)

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

None of the gas was flared in the only month reported.

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.

San Dia Producing Company has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeSan Dia Producing Company, Jan 2020 to Jul 20262020202120222023202420252026San Dia Producing CompanyJan 2020 to nowthrough Jul 2026
Operators of this lease over timeSan Dia Producing Company, Jan 2020 to Jul 20262020202120222023202420252026San Dia Producing CompanyJan 2020 to nowthrough Jul 2026

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 18570 in district 03. The API number is the state’s ID for a well.
Wells on JOHNSON UNIT
API numberWell no.Status
42-287-314121Active

SourceTexas Railroad Commission Wellbore Query, district 03, lease 18570.

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

    Ace Gathering, Inc., Energy Transfer Marketing & Term, First River Energy, LLC, Gibson Energy Marketing, LLC and Plains Marketing, L.p. gather it.

    Ace Gathering, Inc. gathers it: 20% of it, on the list since Nov 1, 2015 · Energy Transfer Marketing & Term gathers it: 20% of it, on the list since Dec 1, 2022 · First River Energy, LLC gathers it: 20% of it, on the list since Oct 1, 2016 · Gibson Energy Marketing, LLC gathers it: 20% of it, on the list since Nov 1, 2015 · Plains Marketing, L.p. gathers it: 20% of it, on the list since Nov 1, 2015

Companies that used to be listed: Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Dec 1, 2022).

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

93 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
0
First completion
Mar 19, 1985
Latest permit
Jan 28, 1985

A pooling certificate was filed

Your tract may share its production with neighbours in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Wells and acres on the permits for Johnson Unit
API numberWell no.Acreson the permit
42-287-31412193

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 JOHNSON UNIT sold each month.

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

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.

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 JOHNSON UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026San Dia20000$80.46$2.89
Jun 2026San Dia20000$84.81$3.15
May 2026San Dia30000$102.13$2.94
Apr 2026San Dia20000$100.32$2.77
Mar 2026San Dia40000$91.38$3.04
Feb 2026San Dia30000$64.51$3.62
Jan 2026San Dia20000$60.04$7.72
Dec 2025San Dia20000$57.97$4.26
Nov 2025San Dia50000$60.06$3.79
Oct 2025San Dia40000$60.89$3.19
Sep 2025San Dia70000$63.96$2.97
Aug 2025San Dia230000$64.86$2.91
Jul 2025San Dia77177000$68.39$3.20
Jun 2025San Dia630000$68.17$3.02
May 2025San Dia710000$62.17$3.12
Apr 2025San Dia58194000$63.54$3.42
Mar 2025San Dia101181000$68.24$4.12
Feb 2025San Dia710000$71.53$4.19
Jan 2025San Dia158190000$75.74$4.13
Dec 2024San Dia176185000$70.12$3.01
Nov 2024San Dia1240000$69.95$2.12
Oct 2024San Dia88178000$71.99$2.20
Sep 2024San Dia660000$70.24$2.28
Aug 2024San Dia20000$76.68$1.99
Jul 2024San Dia20000$81.80$2.07
Jun 2024San Dia20000$79.77$2.54
May 2024San Dia30000$80.02$2.12
Apr 2024San Dia20000$85.35$1.60
Mar 2024San Dia20000$81.28$1.49
Feb 2024San Dia20000$77.25$1.72
Jan 2024San Dia30000$74.15$3.18
Dec 2023San Dia20000$71.90$2.52
Nov 2023San Dia20000$77.69$2.71
Oct 2023San Dia201691690$85.64$2.98
Sep 2023San Dia30000$89.43$2.64
Aug 2023San Dia40000$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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This lease belongs to

OperatorSan Dia Producing CompanyFieldGiddings (Austin Chalk-3)CountyLee County

San Dia Producing Company in Lee County

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Giddings (Austin Chalk-3) field

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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 18570, district 03, 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.