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Texas oil lease · RRC district 8A · Lease 18149

Producing

MALLET UNIT

Mallet Unit is an oil lease in Hockley County, Texas, operated by Hilcorp Energy Company in the Slaughter field. The Railroad Commission shows 318,265 bbl of oil in the 12 months through Jul 2026.

Oil lease dossier · 291 wells

318,265bbl oil, last 12 months−1% vs prior year
Operator
Hilcorp Energy Company
County
Hockley County
Field
Slaughter
RRC lease
8A-18149

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Where it sits

This county

Hockley CountyHockleyHaleCochranLambLubbockBaileyHockley County
Hockley County · RRC district 8AOpen Hockley County →
Gas, last 12 months
201,457 mcf
Oil in Jul 2026
26,791 bbl
Reporting to the state
since Jan 2020
Wells
291

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 held steady over the last 12 months

318,265 bbl in the 12 months through Jul 2026, against 320,422 bbl in the 12 months before.

  • Oil (bars, left axis)
  • Gas (line, right axis)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production and gas for MALLET UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 318,265 bbl in the 12 months through Jul 2026, against 320,422 bbl in the 12 months before.Last 12 months: 318,265 bblbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production and gas for MALLET UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 318,265 bbl in the 12 months through Jul 2026, against 320,422 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, oil lease 18149, 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.

Since Jan 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.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
Since Jan 2025 the lease's gas goes to a transmission line instead of a processing plantShare of MALLET UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jan 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.Share of the lease’s gas by disposition code, per month0%50%100%Jan 2025: plant to lineOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jan 2025 the lease's gas goes to a transmission line instead of a processing plantShare of MALLET UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Jan 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.Share of gas by disposition code0%50%100%Jan 25: plant to lineJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, gas disposition by code, lease 18149, district 8A. 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.

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.

The operator changed once, most recently in May 2025

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 timeApache Corporation, Jan 2020 to Apr 2025; Hilcorp Energy Company, May 2025 to Jul 20262020202120222023202420252026Changed May 2025Apache CorporationJan 2020 to Apr 2025Hilcorp Energy CompanyMay 2025 to now
Operators of this lease over timeApache Corporation, Jan 2020 to Apr 2025; Hilcorp Energy Company, May 2025 to Jul 20262020202120222023202420252026Changed May 2025Apache CorporationJan 2020 to Apr 2025Hilcorp Energy CompanyMay 2025 to now

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

Wells

200 wells on this lease

Every well the Railroad Commission links to oil lease 18149 in district 8A. The API number is the state’s ID for a well.
Wells on MALLET UNIT
API numberWell no.Status
42-079-01149405Shut-in
42-079-01150406WActive
42-079-01151418Shut-in
42-079-01152427Shut-in
42-079-01153426Active
42-079-01154432WActive
42-079-01155433WActive
42-079-01452173Active
42-079-01454101WActive
42-079-01455103WActive
42-079-01457176WActive
42-079-01459102Active
42-079-01461174Active
42-079-01462112WActive
42-079-01464175Active
42-079-01465113Active
42-079-01467128WActive
42-079-01468115Active
42-079-01469178Active
42-079-01470140Active
42-079-01472129WActive
42-079-01475152WActive
42-079-01476709Active
42-079-01477127Active
42-079-01478710WActive
42-079-01479139Active
42-079-01480138Active
42-079-01481711Active
42-079-01482142Active
42-079-01483712Active
42-079-01484151Active
42-079-01485713WActive
42-079-01486153Active
42-079-01487714Active
42-079-01488154WActive
42-079-01490155Active
42-079-01492114WActive
42-079-01494143Active
42-079-01497166WActive
42-079-01499701WActive
42-079-01500165Active
42-079-01501715WActive
42-079-01503168WActive
42-079-01504164WActive
42-079-01506167Active
42-079-01675301Shut-in
42-079-01676302Active
42-079-01677303WActive
42-079-01679305WActive
42-079-01772141WActive
42-079-01773179Shut-in
42-079-30036183Active
42-079-30064185Active
42-079-30065187Active
42-079-30067188Shut-in
42-079-30121190Active
42-079-30139434Active
42-079-30158126AWActive
42-079-30170196Active
42-079-30171197RActive
42-079-30172307Active
42-079-30173718Active
42-079-30174719RActive
42-079-301842WSShut-in
42-079-30202435Active
42-079-30203721Active
42-079-302041104Active
42-079-302051103WActive
42-079-302691111Active
42-079-302701112WActive
42-079-302811110Active
42-079-30283722Active
42-079-305021115Active
42-079-319531122Active
42-079-319571116Active
42-079-319601128Active
42-079-319611121Active
42-079-319621127Active
42-079-319631134Active
42-079-319661129Active
42-079-319921135Active
42-079-31994308Active
42-079-319971138Active
42-079-319981139Shut-in
42-079-32016404AActive
42-079-32017724Active
42-079-32023725Shut-in
42-079-32024436Active
42-079-32043437Active
42-079-32044726Active
42-079-322781141Shut-in
42-079-326141149Active
42-079-326151148Active
42-079-326161147Active
42-079-326171146Active
42-079-326311151Active
42-079-326321155Active
42-079-329921122AActive
42-079-330171425Active
42-079-330951508Shut-in
42-079-33096129AActive
42-079-33097151AWActive
42-079-330981502Shut-in
42-079-330991503Shut-in
42-079-332351516Active
42-079-332361514Active
42-079-332491512WActive
42-079-332501511WActive
42-079-332711517Shut-in
42-079-332721520Active
42-079-332731518Active
42-079-332741519Shut-in
42-079-332751523WActive
42-079-332761524WShut-in
42-079-332771521Shut-in
42-079-332781525WActive
42-079-8080131WSActive
42-079-81804151WSShut-in
42-219-00324501Active
42-219-00325502WActive
42-219-00326503Active
42-219-00327504Active
42-219-00328505Active
42-219-01115122WActive
42-219-01118156Active
42-219-01119702Active
42-219-01120137WActive
42-219-01125104Active
42-219-01127703WActive
42-219-01130119Active
42-219-01131146Active
42-219-01132704Shut-in
42-219-01136107WActive
42-219-01137111Active
42-219-01138705WActive
42-219-01142108Active
42-219-01143706WActive
42-219-01147121WSActive
42-219-01148116Active
42-219-01149707Active
42-219-01153133WActive
42-219-01154160WActive
42-219-01155708WActive
42-219-01159120WActive
42-219-01160149Active
42-219-01161125Active
42-219-01166180Active
42-219-01167130WActive
42-219-01172177Active
42-219-01176105WActive
42-219-01177171Active
42-219-01181106Active
42-219-01182159Active
42-219-01183124Active
42-219-01188170Shut-in
42-219-01189123Active
42-219-01193132WActive
42-219-01194161Active
42-219-01195131Active
42-219-01201136Active
42-219-01206169Active
42-219-01207135WActive
42-219-01211117Active
42-219-01212148Active
42-219-01213145WActive
42-219-01217118WActive
42-219-01218147Active
42-219-01219144Active
42-219-01220157Active
42-219-01224110WActive
42-219-01229109WActive
42-219-01230163Active
42-219-01342601WActive
42-219-01343602WActive
42-219-01344603Active
42-219-01345604Active
42-219-01346605WActive
42-219-02792202Active
42-219-02800204WActive
42-219-02804205WActive
42-219-02807206Active
42-219-02811207Active
42-219-02814208Active
42-219-02822210WIActive
42-219-02826211WShut-in
42-219-02830212Active
42-219-02834213Active
42-219-02838214Active
42-219-02841215Active
42-219-02846216WActive
42-219-03121209WActive
42-219-03273410WActive
42-219-03274407Shut-in
42-219-03284172WActive
42-219-30024217Active
42-219-30182184Shut-in
42-219-30510186Active
42-219-30716189Active
42-219-30771192Active
42-219-30774193Active

SourceTexas Railroad Commission Wellbore Query, district 8A, lease 18149.

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 Apr 1, 2025

  • Gas from oil wells

    Occidental Permian Ltd. buys and gathers it.

    Occidental Permian Ltd. buys it: 100% of it, on the list since May 1, 2000 · Occidental Permian Ltd. gathers it: 100% of it, on the list since May 1, 2000

Companies that used to be listed: Centurion Pipeline L.p. (gathers it, until Apr 1, 2025); Nominator Not Required / Swr 31 (nominates it, until Dec 31, 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

4,781.70 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
365266 not plugged
Horizontal
20
First completion
Jun 6, 1940
Latest permit
Jul 11, 2012

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.

365 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 Mallet Unit
API numberWell no.Acreson the permit
42-079-332761524W4,781.70
42-219-3724915224,781.70
42-079-3327115174,781.70
42-079-3327215204,781.70
42-079-3327315184,781.70
42-079-3327415194,781.70
42-079-332751523W4,781.70
42-079-3327715214,781.70
42-079-332781525W4,781.70
42-219-372501526W4,781.70
42-079-332491512W4,781.70
42-079-332501511W4,781.70

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 MALLET 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.

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 MALLET UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3Flaredmcf, code 4WTI$ per bblHenry Hub$ per MMBtu
Jul 2026Hilcorp Energy26,79126,74819,01919,0190$80.46$2.89
Jun 2026Hilcorp Energy26,53526,55219,16719,1670$84.81$3.15
May 2026Hilcorp Energy27,78827,74715,37315,3730$102.13$2.94
Apr 2026Hilcorp Energy26,95926,94321,56421,5640$100.32$2.77
Mar 2026Hilcorp Energy27,13427,10514,90214,9020$91.38$3.04
Feb 2026Hilcorp Energy24,17824,14515,09715,0970$64.51$3.62
Jan 2026Hilcorp Energy27,02627,09118,17518,1750$60.04$7.72
Dec 2025Hilcorp Energy27,26027,26018,25618,2560$57.97$4.26
Nov 2025Hilcorp Energy25,96425,97916,90416,9040$60.06$3.79
Oct 2025Hilcorp Energy26,44326,48714,97614,9760$60.89$3.19
Sep 2025Hilcorp Energy25,66525,60913,89813,8980$63.96$2.97
Aug 2025Hilcorp Energy26,52226,60714,12614,1260$64.86$2.91
Jul 2025Hilcorp Energy26,66326,61313,05013,0500$68.39$3.20
Jun 2025Hilcorp Energy25,66825,60414,19114,1910$68.17$3.02
May 2025Hilcorp Energy27,87727,92815,19515,1950$62.17$3.12
Apr 2025Apache Corporation27,22927,23912,68912,6890$63.54$3.42
Mar 2025Apache Corporation26,62726,46816,49116,4910$68.24$4.12
Feb 2025Apache Corporation24,29024,25612,77312,7730$71.53$4.19
Jan 2025Apache Corporation26,58426,74414,62414,6240$75.74$4.13
Dec 2024Apache Corporation26,89926,61335,72635,4530$70.12$3.01
Nov 2024Apache Corporation27,14327,20030,66830,4040$69.95$2.12
Oct 2024Apache Corporation27,47027,72026,35626,0830$71.99$2.20
Sep 2024Apache Corporation26,74526,63626,72926,7290$70.24$2.28
Aug 2024Apache Corporation27,22727,24222,95222,9520$76.68$1.99
Jul 2024Apache Corporation29,14228,81724,96324,9630$81.80$2.07
Jun 2024Apache Corporation25,02525,19743,80143,8010$79.77$2.54
May 2024Apache Corporation25,95826,13720,87820,8780$80.02$2.12
Apr 2024Apache Corporation28,16328,23429,01129,0110$85.35$1.60
Mar 2024Apache Corporation30,01029,92132,59532,5950$81.28$1.49
Feb 2024Apache Corporation29,76129,71232,13231,8770$77.25$1.72
Jan 2024Apache Corporation32,12632,06621,30821,0350$74.15$3.18
Dec 2023Apache Corporation31,99832,11813,22012,9470$71.90$2.52
Nov 2023Apache Corporation30,76530,73830,88730,6230$77.69$2.71
Oct 2023Apache Corporation31,24431,37532,38432,1110$85.64$2.98
Sep 2023Apache Corporation28,89728,78532,67832,6780$89.43$2.64
Aug 2023Apache Corporation29,96730,07133,01333,0130$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

OperatorHilcorp Energy CompanyFieldSlaughterCountyHockley County

Hilcorp Energy Company in Hockley County

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Slaughter field

All leases in this field →

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 18149, 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.