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Royalty Clerk

Texas oil lease · RRC district 8A · Lease 66149

Producing

SIMPSON

Simpson is an oil lease in King County, Texas, operated by MWL Energy LLC in the Edwards Bluff (Tannehill) field. The Railroad Commission shows 1,097 bbl of oil in the 12 months through Jun 2026.

Oil lease dossier · 2 wells

1,097bbl oil, last 12 months−45% vs prior year
Operator
MWL Energy LLC
County
King County
Field
Edwards Bluff (Tannehill)
RRC lease
8A-66149

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Where it sits

This county

King CountyKingCottleDickensMotleyKnoxFoardKing County
King County · RRC district 8AOpen King County →
Oil in Jun 2026
96 bbl
Reporting to the state
since Jan 2020
Wells
2
Data through
Jun 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 45% over the last 12 months

1,010 bbl in the 12 months through Jul 2026, against 1,849 bbl in the 12 months before. Jul 2026 was not reported. A red cross marks each one.

  • Oil (bars, left axis)
  • Last 12 months
Oil output fell 45% over the last 12 monthsMonthly oil production for SIMPSON, Aug 2023 to Jul 2026. Oil output fell 45% over the last 12 months. 1,010 bbl in the 12 months through Jul 2026, against 1,849 bbl in the 12 months before.Last 12 months: 1,010 bblbbl per month050100150200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 45% over the last 12 monthsMonthly oil production for SIMPSON, Aug 2023 to Jul 2026. Oil output fell 45% over the last 12 months. 1,010 bbl in the 12 months through Jul 2026, against 1,849 bbl in the 12 months before.Last 12 monthsbbl per month050100150200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 66149, district 8A. 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.

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

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 May 2020

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 timeChap Operating, Inc., Jan 2020 to Apr 2020; MWL Energy LLC, May 2020 to Jun 20262020202120222023202420252026Changed May 2020Chap Operating, Inc.Jan 2020 to Apr 2020MWL Energy LLCMay 2020 to now
Operators of this lease over timeChap Operating, Inc., Jan 2020 to Apr 2020; MWL Energy LLC, May 2020 to Jun 20262020202120222023202420252026Changed May 2020Chap Operating, Inc.Jan 2020 to Apr 2020MWL Energy LLCMay 2020 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 66149 in district 8A. The API number is the state’s ID for a well.
Wells on SIMPSON
API numberWell no.Status
42-269-317811Active
42-269-318033Active

SourceTexas Railroad Commission Wellbore Query, district 8A, lease 66149.

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

    Energy Transfer Company, Bml, Inc. B and Cp Energy, L.l.c. gather it.

    Energy Transfer Company gathers it: 50% of it, on the list since May 1, 2024 · Bml, Inc. B gathers it: 25% of it, on the list since May 1, 2024 · Cp Energy, L.l.c. gathers it: 25% of it, on the list since May 1, 2024

Companies that used to be listed: Bml, Inc. B (gathers it, until May 1, 2024); Oasis Transp & Marketing Corp. (gathers it, until May 1, 2024); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until May 1, 2024); Bml, Inc. B (gathers it, until Mar 1, 2021); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Mar 1, 2021); Sunoco Ptnrs. Mktg.&terminals LP (gathers it, until Jul 1, 2020).

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

496.20 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
Mar 17, 1988
Latest permit
Apr 27, 1988
Wells and acres on the permits for Simpson
API numberWell no.Acreson the permit
42-269-318033496.20
42-269-317811496.20

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 SIMPSON 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.

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 SIMPSON
MonthOil producedbblOil soldbblWTI$ per bblHenry Hub$ per MMBtu
Jul 2026No report––$80.46$2.89
Jun 2026MWL Energy96178$84.81$3.15
May 2026MWL Energy1180$102.13$2.94
Apr 2026MWL Energy28186$100.32$2.77
Mar 2026MWL Energy1540$91.38$3.04
Feb 2026MWL Energy137179$64.51$3.62
Jan 2026MWL Energy930$60.04$7.72
Dec 2025MWL Energy63168$57.97$4.26
Nov 2025MWL Energy760$60.06$3.79
Oct 2025MWL Energy8248$60.89$3.19
Sep 2025MWL Energy74152$63.96$2.97
Aug 2025MWL Energy890$64.86$2.91
Jul 2025MWL Energy87107$68.39$3.20
Jun 2025MWL Energy122246$68.17$3.02
May 2025MWL Energy151181$62.17$3.12
Apr 2025MWL Energy1540$63.54$3.42
Mar 2025MWL Energy163166$68.24$4.12
Feb 2025MWL Energy146146$71.53$4.19
Jan 2025MWL Energy163167$75.74$4.13
Dec 2024MWL Energy166179$70.12$3.01
Nov 2024MWL Energy168178$69.95$2.12
Oct 2024MWL Energy180178$71.99$2.20
Sep 2024MWL Energy178165$70.24$2.28
Aug 2024MWL Energy171171$76.68$1.99
Jul 2024MWL Energy122234$81.80$2.07
Jun 2024MWL Energy1100$79.77$2.54
May 2024MWL Energy110222$80.02$2.12
Apr 2024MWL Energy1110$85.35$1.60
Mar 2024MWL Energy9967$81.28$1.49
Feb 2024MWL Energy24112$77.25$1.72
Jan 2024MWL Energy410$74.15$3.18
Dec 2023MWL Energy350$71.90$2.52
Nov 2023MWL Energy80161$77.69$2.71
Oct 2023MWL Energy1060$85.64$2.98
Sep 2023MWL Energy125147$89.43$2.64
Aug 2023MWL Energy136153$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

OperatorMWL Energy LLCFieldEdwards Bluff (Tannehill)CountyKing County

MWL Energy LLC in King County

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Edwards Bluff (Tannehill) field

No other producing leases in this field are in our data yet.

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 Jun 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 66149, district 8A, 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.