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I.V. MONTALVO 'A'

I.v. Montalvo 'A' is a gas well in Starr County, Texas, operated by Killam Oil Co., Ltd. in the Sun,north (5470) field.

Gas well dossier

4,075mcf gas, last 12 months−95% vs prior year
Operator
Killam Oil Co., Ltd.
County
Starr County
Field
Sun,north (5470)
RRC lease
04-298005

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Where it sits

This county

Starr CountyStarrBrooksJim HoggZapataHidalgoStarr County
Starr County
Oil, last 12 months
80 bbl
Gas in Jul 2026
0 mcf

Checks stopped on this lease?

  • Sales

    No sales reported for the last 9 months of state data (through Jul 2026).

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

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Production by month

Gas output fell 95% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 95% over the last 12 monthsMonthly gas production and oil for I.V. MONTALVO 'A', Jun 2024 to Jul 2026. Gas output fell 95% over the last 12 months. 4,075 mcf in the 12 months through Jul 2026, against 87,439 mcf in the 12 months before.Last 12 months: 4,075 mcfmcf per monthbbl per month002,500505,0001007,50015010k20012.5k250Jul 24OctJan 25AprJulOctJan 26AprJul
Gas output fell 95% over the last 12 monthsMonthly gas production and oil for I.V. MONTALVO 'A', Jun 2024 to Jul 2026. Gas output fell 95% over the last 12 months. 4,075 mcf in the 12 months through Jul 2026, against 87,439 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,500505,0001007,50015010k20012.5k250Jul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a transmission line in the last 12 months

All of the gas went to a transmission line in the last 12 monthsShare of I.V. MONTALVO 'A' gas by disposition code each month, Jun 2024 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Jul 24OctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of I.V. MONTALVO 'A' gas by disposition code each month, Jun 2024 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of gas by disposition code0%50%100%Jul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.CondensateGathers100Jun 17, 2024
Killam Oil Co., Ltd.Gas-well gasBuys100Jun 17, 2024
Enterprise Products Operating LLCGas-well gasGathers100Jun 17, 2024

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

Who buys my oilOil price check

656.11 acres on the newest permit

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Permits for I.v. Montalvo 'A'
API numberWell no.Acreson the permit
42-427-3476220656.11

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

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26 months, newest first

Ledger for I.V. MONTALVO 'A'
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202601000$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 202600000$91.38$3.04
Feb 2026092000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 202500000$57.97$4.26
Nov 202508000$60.06$3.79
Oct 202511639390$60.89$3.19
Sep 20252201,3421,3420$63.96$2.97
Aug 2025572952,6942,6940$64.86$2.91
Jul 2025101793,9633,9630$68.39$3.20
Jun 202514507,0357,0350$68.17$3.02
May 20251502699,5469,5460$62.17$3.12
Apr 20251497510,49010,4900$63.54$3.42
Mar 202510307,5667,5660$68.24$4.12
Feb 20254209049040$71.53$4.19
Jan 202525481,3021,3020$75.74$4.13
Dec 202482785,9995,9990$70.12$3.01
Nov 2024118778,8228,8220$69.95$2.12
Oct 20241025710,72310,7230$71.99$2.20
Sep 202416328012,44812,4480$70.24$2.28
Aug 2024148578,6418,6410$76.68$1.99
Jul 20241639110,39510,3950$81.80$2.07
Jun 20241002,5932,5930$79.77$2.54

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

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This lease belongs to

OperatorKillam Oil Co., Ltd.FieldSun,north (5470)CountyStarr County

Killam Oil Co., Ltd. in Starr County

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Sun,north (5470) field

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