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Royalty Clerk

Texas oil lease · RRC district 04 · Lease 12931

Producing

KELSEY UNIT

Kelsey Unit is an oil lease in Brooks County, Texas, operated by Hilcorp Energy Company in the Kelsey (Frio Consol.) field. The Railroad Commission shows 17,757 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 24 wells

17,757bbl oil, last 12 months−42% vs prior year
Operator
Hilcorp Energy Company
County
Brooks County
Field
Kelsey (Frio Consol.)
RRC lease
04-12931

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Where it sits

This county

Brooks CountyBrooksDuvalJim HoggKenedyKlebergBrooks County
Brooks County · RRC district 04Open Brooks County →
Gas, last 12 months
10,147 mcf
Oil in Jul 2026
478 bbl
Reporting to the state
since Jan 2020
Wells
24

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 42% over the last 12 months

17,757 bbl in the 12 months through Jul 2026, against 30,622 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output fell 42% over the last 12 monthsMonthly oil production and gas for KELSEY UNIT, Aug 2023 to Jul 2026. Oil output fell 42% over the last 12 months. 17,757 bbl in the 12 months through Jul 2026, against 30,622 bbl in the 12 months before.Last 12 months: 17,757 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 42% over the last 12 monthsMonthly oil production and gas for KELSEY UNIT, Aug 2023 to Jul 2026. Oil output fell 42% over the last 12 months. 17,757 bbl in the 12 months through Jul 2026, against 30,622 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,0005,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 12931, district 04. 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 Jul 2026 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 5.2% of the gas in Jul 2026.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Jul 2026 the lease's gas goes to a transmission line instead of a processing plantShare of KELSEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 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 5.2% of the gas in Jul 2026.Share of the lease’s gas by disposition code, per month0%50%100%Jul 2026: plant to lineFlared 5.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jul 2026 the lease's gas goes to a transmission line instead of a processing plantShare of KELSEY UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jul 2026 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 5.2% of the gas in Jul 2026.Share of gas by disposition code0%50%100%Jul 26: plant to lineFlared 5.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 12931, district 04. 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, 0.2% 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 once, most recently in Jul 2026

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 timeOverton Park Oil & Gas LP, Jan 2020 to Jun 2026; Hilcorp Energy Company, Jul 2026 to Jul 20262020202120222023202420252026Changed Jul 2026Overton Park Oil & Gas LPJan 2020 to Jun 2026Hilcorp Energy CompanyJul 2026 to now
Operators of this lease over timeOverton Park Oil & Gas LP, Jan 2020 to Jun 2026; Hilcorp Energy Company, Jul 2026 to Jul 20262020202120222023202420252026Changed Jul 2026Overton Park Oil & Gas LPJan 2020 to Jun 2026Hilcorp Energy CompanyJul 2026 to now

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

Wells

24 wells on this lease

Every well the Railroad Commission links to oil lease 12931 in district 04. The API number is the state’s ID for a well.
Wells on KELSEY UNIT
API numberWell no.Status
42-047-00935S 16MActive
42-047-00938S 29MShut-in
42-047-00939S 36MTActive
42-047-00958S 30MActive
42-047-00959S 1 MActive
42-047-00962S 28MActive
42-047-00963S 32 MActive
42-047-00968M 4 EActive
42-047-00982M 8ECShut-in
42-047-00988M 95 CActive
42-047-00994M 83Active
42-047-00995M 84 TActive
42-047-01007M202Active
42-047-01009M201 CActive
42-047-01018M156 TActive
42-047-01139M 26Active
42-047-01584M363 FActive
42-047-01624M386 FActive
42-047-01671M 20 EActive
42-047-30064S 41 MActive
42-047-30080M433 FActive
42-047-32150S 55MDActive
42-047-32162S 57MDActive
42-047-32557M 1FGActive

SourceTexas Railroad Commission Wellbore Query, district 04, lease 12931.

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

    Gulfmark Energy, Inc. gathers it.

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

  • 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 Oct 1, 2023 · Energy Transfer Company gathers it: 100% of it, on the list since Jul 1, 2015

Companies that used to be listed: Energy Transfer Company (buys it, until Oct 1, 2023); Gulfmark Energy, Inc. (gathers it, until Oct 1, 2023); Shell Trading (Us) Company (gathers it, until Mar 1, 2021); Gulfmark Energy, Inc. (gathers it, until Feb 1, 2021); Flint Hills Resources, LP (gathers it, until Dec 1, 2019).

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

5,591.35 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
357 not plugged
Horizontal
1
First completion
Sep 23, 1941
Latest permit
Mar 25, 2024

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 348.96 and 30,218.7 acres. Use the acres from your own division order for the well you are paid on.

35 wells are listed on this lease

Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

Wells and acres on the permits for Kelsey Unit
API numberWell no.Acreson the permit
42-047-32557M 1FG5,591.35
42-047-00982M 85,591.35
42-047-00982M 8EC5,591.35
42-047-00982M 8ET5,591.35
42-047-3215055DF5,591.35
42-047-32150S 55MD5,591.35
42-047-32162S 57MD348.96
42-047-01602M379 D5,591.35
42-047-01584M363 F5,591.35
42-047-30080M433 F5,591.35
42-047-00939S 36MC5,591.35
42-047-00939S 36MT5,591.35

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 KELSEY 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 KELSEY UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Hilcorp Energy47841247933025$80.46$2.89
Jun 2026Overton Park1,3951,3951,6521,6520$84.81$3.15
May 2026Overton Park1,5141,5141,5641,5640$102.13$2.94
Apr 2026Overton Park1,5351,5351,5141,5140$100.32$2.77
Mar 2026Overton Park1,4111,4117117110$91.38$3.04
Feb 2026Overton Park69369337370$64.51$3.62
Jan 2026Overton Park1,3451,3453013010$60.04$7.72
Dec 2025Overton Park1,5941,5943893890$57.97$4.26
Nov 2025Overton Park9649642202200$60.06$3.79
Oct 2025Overton Park2,3352,3351,2111,2110$60.89$3.19
Sep 2025Overton Park2,0882,0888958950$63.96$2.97
Aug 2025Overton Park2,4052,4051,1741,1740$64.86$2.91
Jul 2025Overton Park2,4502,4501,2631,2630$68.39$3.20
Jun 2025Overton Park2,2852,2851,3661,3660$68.17$3.02
May 2025Overton Park2,4002,4001,4321,4320$62.17$3.12
Apr 2025Overton Park2,3212,3211,3761,3760$63.54$3.42
Mar 2025Overton Park2,5792,5791,4331,4330$68.24$4.12
Feb 2025Overton Park2,2802,2801,2981,2980$71.53$4.19
Jan 2025Overton Park2,4472,4471,4101,4100$75.74$4.13
Dec 2024Overton Park2,6572,6571,5021,5020$70.12$3.01
Nov 2024Overton Park2,5752,5751,4041,4040$69.95$2.12
Oct 2024Overton Park2,8392,8392,3392,3390$71.99$2.20
Sep 2024Overton Park2,7682,7682,1792,1790$70.24$2.28
Aug 2024Overton Park3,0213,0213,7143,7140$76.68$1.99
Jul 2024Overton Park2,1532,1533,3373,3370$81.80$2.07
Jun 2024Overton Park2,7352,7355,1165,1160$79.77$2.54
May 2024Overton Park2,9562,9562,3832,3830$80.02$2.12
Apr 2024Overton Park4,6844,6844,1884,1880$85.35$1.60
Mar 2024Overton Park2,3632,3634,0274,0270$81.28$1.49
Feb 2024Overton Park1,8041,8044,4924,4920$77.25$1.72
Jan 2024Overton Park2,2582,2582,9352,9350$74.15$3.18
Dec 2023Overton Park1,8301,8303,5463,5460$71.90$2.52
Nov 2023Overton Park6956953,0163,0160$77.69$2.71
Oct 2023Overton Park1,9831,9832,1792,1790$85.64$2.98
Sep 2023Overton Park2,1292,1292,1012,1010$89.43$2.64
Aug 2023Overton Park2,8182,8182,0382,0380$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

OperatorHilcorp Energy CompanyFieldKelsey (Frio Consol.)CountyBrooks County

Hilcorp Energy Company in Brooks County

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Kelsey (Frio Consol.) 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 12931, district 04, 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.