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Texas oil lease

Producing

KELSEY UNIT

Kelsey Unit is an oil lease in Brooks County, Texas, operated by Hilcorp Energy Company in the Kelsey (Frio Consol.) field.

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
Gas, last 12 months
10,147 mcf
Oil in Jul 2026
478 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Hilcorp Energy Company took over from Overton Park Oil & Gas LP in Jul 2026.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Sep 10, 2026 (last P-5 filed Apr 18, 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Oil output fell 42% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • 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, through Jul 2026.

Where the gas went

Since Jul 2026 the lease's gas goes to a transmission line instead of a processing plant

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. 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. 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, through Jul 2026.

  • Processing plant (3)

    95% · 9,668 mcf

  • Transmission line (2)

    3.3% · 330 mcf

  • Lease fuel (1)

    1.2% · 124 mcf

  • Flared (4)

    0.2% · 25 mcf

0.2% of the gas flared in the last 12 months. One month above 3%.

Who has run this lease

The operator changed once, most recently in Jul 2026

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, through Jul 2026.

24 wells on this lease

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.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Gulfmark Energy, Inc.OilGathers100Oct 1, 2023–
Et Gathering & Processing LLCCasinghead gasBuys100Oct 1, 2023–
Energy Transfer CompanyCasinghead gasGathers100Jul 1, 2015–
Energy Transfer CompanyCasinghead gasBuys100Jul 1, 2015Oct 1, 2023
Gulfmark Energy, Inc.OilGathers100Mar 1, 2021Oct 1, 2023
Shell Trading (Us) CompanyOilGathers100Feb 1, 2021Mar 1, 2021
Gulfmark Energy, Inc.OilGathers100Dec 1, 2019Feb 1, 2021
Flint Hills Resources, LPOilGathers100Dec 1, 2018Dec 1, 2019

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oilOil price check

5,591.35 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

  • Good to know

    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.

  • Good to know

    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.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
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 drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

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36 months, newest first

Ledger for KELSEY UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/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

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

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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