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Royalty Clerk

Texas oil lease · RRC district 08 · Lease 48623

Producing

UL 20 FLATHEAD

Ul 20 Flathead is an oil lease in Winkler County, Texas, operated by Apache Corporation in the Phantom (Wolfcamp) field. The Railroad Commission shows 40,361 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 4 wells

40,361bbl oil, last 12 months+294% vs prior year
Operator
Apache Corporation
County
Winkler County
Field
Phantom (Wolfcamp)
RRC lease
08-48623

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Where it sits

This county

Winkler CountyWinklerAndrewsWardLovingEctorWinkler County
Winkler County · RRC district 08Open Winkler County →
Gas, last 12 months
57,715 mcf
Oil in Jul 2026
2,856 bbl
Reporting to the state
since Jan 2020
Wells
4

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 rose 294% over the last 12 months

40,361 bbl in the 12 months through Jul 2026, against 10,242 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output rose 294% over the last 12 monthsMonthly oil production and gas for UL 20 FLATHEAD, Aug 2023 to Jul 2026. Oil output rose 294% over the last 12 months. 40,361 bbl in the 12 months through Jul 2026, against 10,242 bbl in the 12 months before.Last 12 months: 40,361 bblbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 294% over the last 12 monthsMonthly oil production and gas for UL 20 FLATHEAD, Aug 2023 to Jul 2026. Oil output rose 294% over the last 12 months. 40,361 bbl in the 12 months through Jul 2026, against 10,242 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,0004,0004,0006,0006,0008,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 48623, 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.

Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant

Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not. Flaring peaked at 13.9% of the gas in Dec 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of UL 20 FLATHEAD gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not. Flaring peaked at 13.9% of the gas in Dec 2025.Share of the lease’s gas by disposition code, per month0%50%100%Apr 2025: plant to lineFlared 13.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plantShare of UL 20 FLATHEAD gas by disposition code each month, Aug 2023 to Jul 2026. Since Apr 2025 the lease's gas goes to a transmission line instead of a processing plant. Where gas goes decides how it is paid: processed gas can carry plant products and processing fees, gas sold straight to a pipeline usually does not. Flaring peaked at 13.9% of the gas in Dec 2025.Share of gas by disposition code0%50%100%Apr 25: plant to lineFlared 13.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 48623, 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.

Transmission line (2)

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

Lease fuel (1)

Burned to run equipment on the lease. Not sold, so it pays no royalty. A few percent is normal.

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, 1.3% of the gas was flared. One month 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 3 times, most recently in Aug 2024

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 timeOasis Petroleum Permian LLC, Jan 2020 to Feb 2021; Percussion Petroleum Oper Ii,llc, Mar 2021 to Jul 2023; Callon Permian II, LLC, Aug 2023 to Jul 2024; Apache Corporation, Aug 2024 to Jul 20262020202120222023202420252026Changed Mar 2021Changed Aug 2023Changed Aug 2024Oasis Petroleum Permian LLCJan 2020 to Feb 2021Percussion Petroleum Oper Ii,…Mar 2021 to Jul 2023Callon Permian II, LLCAug 2023 to Jul 2024Apache CorporationAug 2024 to now
Operators of this lease over timeOasis Petroleum Permian LLC, Jan 2020 to Feb 2021; Percussion Petroleum Oper Ii,llc, Mar 2021 to Jul 2023; Callon Permian II, LLC, Aug 2023 to Jul 2024; Apache Corporation, Aug 2024 to Jul 20262020202120222023202420252026Changed Mar 2021Changed Aug 2023Changed Aug 2024Oasis Petroleum Permian LLCJan 2020 to Feb 2021Percussion Petroleum Oper Ii,llcMar 2021 to Jul 2023Callon Permian II, LLCAug 2023 to Jul 2024Apache CorporationAug 2024 to now

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

Wells

4 wells on this lease

Every well the Railroad Commission links to oil lease 48623 in district 08. The API number is the state’s ID for a well.
Wells on UL 20 FLATHEAD
API numberWell no.Status
42-495-337391HShut-in
42-495-337822HActive
42-495-34619B003HActive
42-495-34620A004HActive

SourceTexas Railroad Commission Wellbore Query, district 08, lease 48623.

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 gathers it.

    100% of it, on the list since Sep 1, 2025

  • Gas from oil wells

    Brazos Midstream Operating, LLC buys and gathers it.

    Brazos Midstream Operating, LLC buys it: 100% of it, on the list since Apr 1, 2025 · Brazos Midstream Operating, LLC gathers it: 100% of it, on the list since Apr 1, 2025

Companies that used to be listed: Energy Transfer Company (gathers it, until Sep 1, 2025); Rio Energy International, Inc. (gathers it, until Sep 1, 2025); Targa Delaware LLC (gathers it, until Apr 1, 2025); Targa Delaware LLC (buys it, until Apr 1, 2025); Oryx Delaware Oil Transport LLC (gathers it, until Apr 1, 2025); Targa Delaware LLC (gathers it, until Jan 22, 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

640.70 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
44 not plugged
Horizontal
4
First completion
Dec 20, 2016
Latest permit
Jul 22, 2021

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.

The wells on this lease state different acreage

The permits state between 640.7 and 720.79 acres. Use the acres from your own division order for the well you are paid on.

Wells and acres on the permits for Ul 20 Flathead
API numberWell no.Acreson the permit
42-495-34619B003H640.70
42-495-34620A004H640.70
42-495-337822H640.70
42-495-337391H720.79

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

What the operator reported

What APA Corporation told investors it received

Apache Corporation is linked to APA Corporation (APA). Public companies report the average price they realize each quarter. It is an average across everything the company operates, not the price on this lease.
Realized prices reported by APA Corporation
QuarterOil$ per bblFiling
Q2 2026$98.24SEC filing
Q1 2026$78.69SEC filing
Q4 2025$61.03SEC filing
Q3 2025$67.43SEC filing
Q2 2025$65.58SEC filing
Q1 2025$73.73SEC filing

SourceAPA Corporation quarterly reports on SEC EDGAR, prices before hedging where the company states both. Read by machine from each filing’s tables; the link opens the filing so you can check the figure.

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Estimator

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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 UL 20 FLATHEAD 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 UL 20 FLATHEAD
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Apache Corporation2,8562,8365,2695,2690$80.46$2.89
Jun 2026Apache Corporation3,2463,2606,2756,2750$84.81$3.15
May 2026Apache Corporation3,4233,4036,1216,1210$102.13$2.94
Apr 2026Apache Corporation2,9072,9525,1505,1500$100.32$2.77
Mar 2026Apache Corporation3,1673,1165,4125,4120$91.38$3.04
Feb 2026Apache Corporation3,3913,4545,3024,9380$64.51$3.62
Jan 2026Apache Corporation4,1084,1456,3205,9170$60.04$7.72
Dec 2025Apache Corporation5,5825,5165,4734,311759$57.97$4.26
Nov 2025Apache Corporation5,5785,9715,0474,6490$60.06$3.79
Oct 2025Apache Corporation3,4473,1524,2893,8300$60.89$3.19
Sep 2025Apache Corporation1,5331,5041,6121,6080$63.96$2.97
Aug 2025Apache Corporation1,1231,7201,4451,4440$64.86$2.91
Jul 2025Apache Corporation1,6631,5962,3492,3490$68.39$3.20
Jun 2025Apache Corporation6114206596581$68.17$3.02
May 2025Apache Corporation2,6392,8633,1013,1001$62.17$3.12
Apr 2025Apache Corporation3,2373,0084,7324,7320$63.54$3.42
Mar 2025Apache Corporation00000$68.24$4.12
Feb 2025Apache Corporation00000$71.53$4.19
Jan 2025Apache Corporation00000$75.74$4.13
Dec 2024Apache Corporation121,5491,1460$70.12$3.01
Nov 2024Apache Corporation51139000$69.95$2.12
Oct 2024Apache Corporation258640300$71.99$2.20
Sep 2024Apache Corporation5377087857850$70.24$2.28
Aug 2024Apache Corporation1,5241,4642,6792,6790$76.68$1.99
Jul 2024Callon Permian2,1432,3543,6773,2290$81.80$2.07
Jun 2024Callon Permian2,2762,1973,5443,0190$79.77$2.54
May 2024Callon Permian2,6202,5624,0113,97036$80.02$2.12
Apr 2024Callon Permian2,1192,1622,7722,73430$85.35$1.60
Mar 2024Callon Permian2,6352,8413,2503,21323$81.28$1.49
Feb 2024Callon Permian2,5972,4782,9892,88884$77.25$1.72
Jan 2024Callon Permian2,9022,9603,2933,20567$74.15$3.18
Dec 2023Callon Permian3,0492,9963,3823,31746$71.90$2.52
Nov 2023Callon Permian2,7942,7623,4553,4400$77.69$2.71
Oct 2023Callon Permian2,2302,2532,8152,8040$85.64$2.98
Sep 2023Callon Permian2,4392,4113,2053,1980$89.43$2.64
Aug 2023Callon Permian2,5062,4823,3623,33419$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

OperatorApache CorporationFieldPhantom (Wolfcamp)CountyWinkler County

Apache Corporation in Winkler County

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Phantom (Wolfcamp) 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 48623, 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.