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Texas oil lease

Producing

MCGILL BROS.

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

37 wells

5,814bbl oil, last 12 months+439% vs prior year
Operator
Hilcorp Energy Company
County
Brooks County
Field
Kelsey (Frio Consol.)
RRC lease
04-12930

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Where it sits

This county

Brooks CountyBrooksDuvalJim HoggKenedyKlebergBrooks County
Brooks County
Gas, last 12 months
11,600 mcf
Oil in Jul 2026
505 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 rose 439% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 439% over the last 12 monthsMonthly oil production and gas for MCGILL BROS., Aug 2023 to Jul 2026. Oil output rose 439% over the last 12 months. 5,814 bbl in the 12 months through Jul 2026, against 1,078 bbl in the 12 months before.Last 12 months: 5,814 bblbbl per monthmcf per month002002,5004005,0006007,50080010k1,00012.5kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 439% over the last 12 monthsMonthly oil production and gas for MCGILL BROS., Aug 2023 to Jul 2026. Oil output rose 439% over the last 12 months. 5,814 bbl in the 12 months through Jul 2026, against 1,078 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002002,5004005,0006007,50080010k1,00012.5kJan 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 5.4% 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 MCGILL BROS. 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 5.4% of the gas in Jul 2026.Share of the lease’s gas by disposition code, per month0%50%100%Jul 2026: plant to lineFlared 5.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jul 2026 the lease's gas goes to a transmission line instead of a processing plantShare of MCGILL BROS. 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 5.4% of the gas in Jul 2026.Share of gas by disposition code0%50%100%Jul 26: plant to lineFlared 5.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    99% · 11,433 mcf

  • Transmission line (2)

    1.0% · 115 mcf

  • Lease fuel (1)

    0.4% · 43 mcf

  • Flared (4)

    0.1% · 9 mcf

0.1% 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.

37 wells on this lease

Wells on MCGILL BROS.
API numberWell no.Status
42-047-0098689 TActive
42-047-01103191Active
42-047-01107168 LActive
42-047-01123165Active
42-047-01159239Active
42-047-01160233 CActive
42-047-01161185 CActive
42-047-01505338 DShut-in
42-047-01565357 EActive
42-047-01620380 DActive
42-047-01625383 FActive
42-047-01641395 FActive
42-047-01650397 FShut-in
42-047-01668409 DActive
42-047-30001414 FActive
42-047-30949474Active
42-047-30964475Active
42-047-30972477Active
42-047-31329504Active
42-047-31910559-FShut-in
42-047-3199447 DActive
42-427-00214174 TActive
42-427-00217170 CShut-in
42-427-00230230DActive
42-427-00239269Active
42-427-00240277Active
42-427-04513336Active
42-427-04606344 DActive
42-427-04993393 FActive
42-427-04994396 DShut-in
42-427-30247431 FShut-in
42-427-30423440 DActive
42-427-30576441Active
42-427-30620442 FActive
42-427-31664489Active
42-427-31904513Active
42-427-33357561-DActive

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, LPOilGathers100Oct 26, 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 1,904.6 and 30,219 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    46 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 McGill Bros.
API numberWell no.Acreson the permit
42-047-3199447 D5,591.35
42-047-31910559-F5,591.35
42-427-33357561-D30,218.70
42-427-30247431 F30,218.70
42-047-01668409 D30,218.70
42-047-01668409 F30,218.70
42-427-0024027730,218.70
42-047-01565357 E30,218.70
42-047-01565357 F30,218.70
42-427-04993393 F30,218.70
42-427-3166448930,218.70
42-427-305764411,904.60

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

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36 months, newest first

Ledger for MCGILL BROS.
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Hilcorp Energy5054111671159$80.46$2.89
Jun 2026Overton Park3293294554550$84.81$3.15
May 2026Overton Park3253253633630$102.13$2.94
Apr 2026Overton Park2892893633630$100.32$2.77
Mar 2026Overton Park5035032,5772,5770$91.38$3.04
Feb 2026Overton Park4944942,9522,9520$64.51$3.62
Jan 2026Overton Park6636631,9361,9360$60.04$7.72
Dec 2025Overton Park7127127687680$57.97$4.26
Nov 2025Overton Park44444491910$60.06$3.79
Oct 2025Overton Park2842844074070$60.89$3.19
Sep 2025Overton Park5665663953950$63.96$2.97
Aug 2025Overton Park7007001,1261,1260$64.86$2.91
Jul 2025Overton Park8568569969960$68.39$3.20
Jun 2025Overton Park2172172502500$68.17$3.02
May 2025Overton Park00110$62.17$3.12
Apr 2025Overton Park0011110$63.54$3.42
Mar 2025Overton Park00660$68.24$4.12
Feb 2025Overton Park00660$71.53$4.19
Jan 2025Overton Park111,8461,8460$75.74$4.13
Dec 2024Overton Park111,2641,2640$70.12$3.01
Nov 2024Overton Park00000$69.95$2.12
Oct 2024Overton Park112,0282,0280$71.99$2.20
Sep 2024Overton Park111,2541,2540$70.24$2.28
Aug 2024Overton Park111,6381,6380$76.68$1.99
Jul 2024Overton Park111,5321,5320$81.80$2.07
Jun 2024Overton Park446,1046,1040$79.77$2.54
May 2024Overton Park225,9415,9410$80.02$2.12
Apr 2024Overton Park2722722,7022,7020$85.35$1.60
Mar 2024Overton Park449,1259,1250$81.28$1.49
Feb 2024Overton Park72726,8466,8460$77.25$1.72
Jan 2024Overton Park226,8766,8760$74.15$3.18
Dec 2023Overton Park339,8049,8040$71.90$2.52
Nov 2023Overton Park228,1558,1550$77.69$2.71
Oct 2023Overton Park446,6996,6990$85.64$2.98
Sep 2023Overton Park338,1208,1200$89.43$2.64
Aug 2023Overton Park5510,44610,4460$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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