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I.V. MONTALVO 'C'

I.v. Montalvo 'C' is an oil lease in Starr County, Texas, operated by Killam Oil Co., Ltd. in the Sun, North (Vicksburg 5980) field.

5 wells

0bbl oil, last 12 months
Operator
Killam Oil Co., Ltd.
County
Starr County
Field
Sun, North (Vicksburg 5980)
RRC lease
04-14050

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Where it sits

This county

Starr CountyStarrBrooksJim HoggZapataHidalgoStarr County
Starr County
Oil in Jul 2026
0 bbl
Reporting since
Jan 2020

Checks stopped on this lease?

  • Sales

    No sales reported for the last 10 months of state data (through Jul 2026).

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

See why checks stop on this lease

Production by month

No oil produced in the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
No oil produced in the last 12 monthsMonthly oil production and gas for I.V. MONTALVO 'C', Aug 2023 to Jul 2026. No oil produced in the last 12 months. The last month with output was Mar 2025, at 9 bbl.Last 12 months: 0 bblbbl per monthmcf per month001002,5002005,0003007,50040010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
No oil produced in the last 12 monthsMonthly oil production and gas for I.V. MONTALVO 'C', Aug 2023 to Jul 2026. No oil produced in the last 12 months. The last month with output was Mar 2025, at 9 bbl.Last 12 monthsbbl per monthmcf per month001002,5002005,0003007,50040010kJan 24JulJan 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 9 months reported

All of the gas went to a transmission line in the 9 months reportedShare of I.V. MONTALVO 'C' gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the 9 months reported.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the 9 months reportedShare of I.V. MONTALVO 'C' gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the 9 months reported.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

5 wells on this lease

Wells on I.V. MONTALVO 'C'
API numberWell no.Status
42-427-3473649Active
42-427-3473955Active
42-427-3474259Shut-in
42-427-3474757Shut-in
42-427-3476663Shut-in

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Gulfmark Energy, Inc.OilGathers100Dec 1, 2019–
Killam Oil Co., Ltd.Casinghead gasBuys100Dec 1, 2019–
Enterprise Products Operating LLCCasinghead gasGathers100Jun 22, 2017–
Total Gas & Power Na, Inc.Casinghead gasBuys100Jun 22, 2017Dec 1, 2019
Flint Hills Resources, LPOilGathers100Jun 22, 2017Dec 1, 2019

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

Who buys my oilOil price check

1,622.27 acres on the newest permit

  • Good to know

    7 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 I.v. Montalvo 'C'
API numberWell no.Acreson the permit
42-427-34736491,622.27
42-427-34743581,622.27
42-427-34739551,622.27
42-427-34747571,622.27
42-427-34766631,622.27
42-427-34737541,622.27
42-427-34742591,622.27

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for I.V. MONTALVO 'C'
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202600000$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 202600000$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 202500000$57.97$4.26
Nov 202500000$60.06$3.79
Oct 202500000$60.89$3.19
Sep 202509000$63.96$2.97
Aug 202500000$64.86$2.91
Jul 202500000$68.39$3.20
Jun 202500000$68.17$3.02
May 202500000$62.17$3.12
Apr 202500000$63.54$3.42
Mar 202590220$68.24$4.12
Feb 20251187110$71.53$4.19
Jan 202512550$75.74$4.13
Dec 20244643203200$70.12$3.01
Nov 2024631798978970$69.95$2.12
Oct 2024164262,1232,1230$71.99$2.20
Sep 20242364133,3883,3880$70.24$2.28
Aug 20243522178,7788,7780$76.68$1.99
Jul 202483283,8793,8790$81.80$2.07
Jun 202400000$79.77$2.54
May 202400000$80.02$2.12
Apr 202400000$85.35$1.60
Mar 202400000$81.28$1.49
Feb 202400000$77.25$1.72
Jan 202400000$74.15$3.18
Dec 202300000$71.90$2.52
Nov 202300000$77.69$2.71
Oct 202300000$85.64$2.98
Sep 202300000$89.43$2.64
Aug 202300000$81.39$2.58

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

OperatorKillam Oil Co., Ltd.FieldSun, North (Vicksburg 5980)CountyStarr County

Killam Oil Co., Ltd. in Starr County

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Sun, North (Vicksburg 5980) field

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