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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 40498

Producing

MILDRED

Mildred is an oil lease in Martin County, Texas, operated by Discovery Operating, Inc. in the Spraberry (Trend Area) field. The Railroad Commission shows 5,923 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 2 wells

5,923bbl oil, last 12 months−21% vs prior year
Operator
Discovery Operating, Inc.
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-40498

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County · RRC district 08Open Martin County →
Gas, last 12 months
29,550 mcf
Oil in Jul 2026
444 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 21% over the last 12 months

5,923 bbl in the 12 months through Jul 2026, against 7,459 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for MILDRED, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 5,923 bbl in the 12 months through Jul 2026, against 7,459 bbl in the 12 months before.Last 12 months: 5,923 bblbbl per monthmcf per month002502,0005004,0007506,0001,0008,0001,25010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 21% over the last 12 monthsMonthly oil production and gas for MILDRED, Aug 2023 to Jul 2026. Oil output fell 21% over the last 12 months. 5,923 bbl in the 12 months through Jul 2026, against 7,459 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002502,0005004,0007506,0001,0008,0001,25010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 40498, 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.

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

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

All of the gas went to a processing plant in the last 12 monthsShare of MILDRED gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months. 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 processing plant in the last 12 monthsShare of MILDRED gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the last 12 months. Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 40498, 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.

None of the gas was flared in the last 12 months.

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.

Discovery Operating, Inc. has reported this lease for the whole period

No change of operator in the months we hold.

Operators of this lease over timeDiscovery Operating, Inc., Jan 2020 to Jul 20262020202120222023202420252026Discovery Operating, Inc.Jan 2020 to nowthrough Jul 2026
Operators of this lease over timeDiscovery Operating, Inc., Jan 2020 to Jul 20262020202120222023202420252026Discovery Operating, Inc.Jan 2020 to nowthrough Jul 2026

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 40498 in district 08. The API number is the state’s ID for a well.
Wells on MILDRED
API numberWell no.Status
42-317-359981Active
42-317-365662Active

SourceTexas Railroad Commission Wellbore Query, district 08, lease 40498.

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

    Enterprise Crude Oil LLC gathers it.

    100% of it, on the list since Mar 1, 2026

  • 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 Mar 1, 2026 · Energy Transfer Company gathers it: 100% of it, on the list since Aug 1, 2024

Companies that used to be listed: Etc Gas Processing, LLC (buys it, until Mar 1, 2026); Enterprise Crude Oil LLC (gathers it, until Mar 1, 2026); Wtg Gas Processing, L.p. (gathers it, until Aug 1, 2024); Wtg Gas Processing, L.p. (buys it, until Aug 1, 2024).

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

160 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
0
First completion
Jul 28, 2010
Latest permit
Jan 13, 2011
Wells and acres on the permits for Mildred
API numberWell no.Acreson the permit
42-317-365662160
42-317-359981160

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

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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 MILDRED 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 MILDRED
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Discovery Operating,4444965,0485,0480$80.46$2.89
Jun 2026Discovery Operating,5194964,1514,1510$84.81$3.15
May 2026Discovery Operating,4073151,4481,4480$102.13$2.94
Apr 2026Discovery Operating,5106175,3745,3740$100.32$2.77
Mar 2026Discovery Operating,5684485,4625,4620$91.38$3.04
Feb 2026Discovery Operating,4467232742740$64.51$3.62
Jan 2026Discovery Operating,4833172,7842,7840$60.04$7.72
Dec 2025Discovery Operating,5966733,9143,9140$57.97$4.26
Nov 2025Discovery Operating,6166331,0951,0950$60.06$3.79
Oct 2025Discovery Operating,548344000$60.89$3.19
Sep 2025Discovery Operating,448515000$63.96$2.97
Aug 2025Discovery Operating,338505000$64.86$2.91
Jul 2025Discovery Operating,649510000$68.39$3.20
Jun 2025Discovery Operating,543517000$68.17$3.02
May 2025Discovery Operating,611867000$62.17$3.12
Apr 2025Discovery Operating,595349000$63.54$3.42
Mar 2025Discovery Operating,55071117170$68.24$4.12
Feb 2025Discovery Operating,449356220$71.53$4.19
Jan 2025Discovery Operating,580532000$75.74$4.13
Dec 2024Discovery Operating,521660000$70.12$3.01
Nov 2024Discovery Operating,874845000$69.95$2.12
Oct 2024Discovery Operating,616512000$71.99$2.20
Sep 2024Discovery Operating,679689000$70.24$2.28
Aug 2024Discovery Operating,7921,032000$76.68$1.99
Jul 2024Discovery Operating,681511000$81.80$2.07
Jun 2024Discovery Operating,793705000$79.77$2.54
May 2024Discovery Operating,1,0071,002000$80.02$2.12
Apr 2024Discovery Operating,840859000$85.35$1.60
Mar 2024Discovery Operating,8471,045000$81.28$1.49
Feb 2024Discovery Operating,908874000$77.25$1.72
Jan 2024Discovery Operating,826931000$74.15$3.18
Dec 2023Discovery Operating,59734915150$71.90$2.52
Nov 2023Discovery Operating,341507000$77.69$2.71
Oct 2023Discovery Operating,982684000$85.64$2.98
Sep 2023Discovery Operating,8551,047000$89.43$2.64
Aug 2023Discovery Operating,1,0871,333000$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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This lease belongs to

OperatorDiscovery Operating, Inc.FieldSpraberry (Trend Area)CountyMartin County

Discovery Operating, Inc. in Martin County

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Spraberry (Trend Area) 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 40498, 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.