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Texas oil lease

Producing

MONTALVO 'B' UNIT

Montalvo 'B' Unit is an oil lease in Starr County, Texas, operated by Killam Oil Co., Ltd. in the Sun, North (Vicksburg 6410) field.

1 well

1,590bbl oil, last 12 months+14% vs prior year
Operator
Killam Oil Co., Ltd.
County
Starr County
Field
Sun, North (Vicksburg 6410)
RRC lease
04-14069

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Where it sits

This county

Starr CountyStarrBrooksJim HoggZapataHidalgoStarr County
Starr County
Gas, last 12 months
5,970 mcf
Oil in Jul 2026
139 bbl

Production by month

Oil output rose 14% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output rose 14% over the last 12 monthsMonthly oil production and gas for MONTALVO 'B' UNIT, Aug 2023 to Jul 2026. Oil output rose 14% over the last 12 months. 1,590 bbl in the 12 months through Jul 2026, against 1,394 bbl in the 12 months before.Last 12 months: 1,590 bblbbl per monthmcf per month0050200100400150600200800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output rose 14% over the last 12 monthsMonthly oil production and gas for MONTALVO 'B' UNIT, Aug 2023 to Jul 2026. Oil output rose 14% over the last 12 months. 1,590 bbl in the 12 months through Jul 2026, against 1,394 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0050200100400150600200800Jan 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 last 12 months

All of the gas went to a transmission line in the last 12 monthsShare of MONTALVO 'B' UNIT gas by disposition code each month, Aug 2023 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%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of MONTALVO 'B' UNIT gas by disposition code each month, Aug 2023 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%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MONTALVO 'B' UNIT
API numberWell no.Status
42-427-347511Active

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 gasGathers100Dec 1, 2017–
Total Gas & Power Na, Inc.Casinghead gasBuys100Dec 1, 2017Dec 1, 2019
Flint Hills Resources, LPOilGathers100Dec 1, 2017Dec 1, 2019

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

Who buys my oilOil price check

88 acres on the newest permit

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Permits for Montalvo 'B' Unit
API numberWell no.Acreson the permit
42-427-34751188

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

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36 months, newest first

Ledger for MONTALVO 'B' UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261391775555550$80.46$2.89
Jun 20261281773433430$84.81$3.15
May 202610402632630$102.13$2.94
Apr 20261371775805800$100.32$2.77
Mar 20261301727027020$91.38$3.04
Feb 20261231804564560$64.51$3.62
Jan 202614105215210$60.04$7.72
Dec 20251371785995990$57.97$4.26
Nov 20251381644804800$60.06$3.79
Oct 20251421765095090$60.89$3.19
Sep 20251261773993990$63.96$2.97
Aug 202514505635630$64.86$2.91
Jul 20251181785735730$68.39$3.20
Jun 20251071823303300$68.17$3.02
May 20258104034030$62.17$3.12
Apr 20255401881880$63.54$3.42
Mar 20251141834444440$68.24$4.12
Feb 20251171754034030$71.53$4.19
Jan 202514705095090$75.74$4.13
Dec 20241291785555550$70.12$3.01
Nov 20241221785475470$69.95$2.12
Oct 202414206736730$71.99$2.20
Sep 20241201745995990$70.24$2.28
Aug 20241431716276270$76.68$1.99
Jul 20241131851071070$81.80$2.07
Jun 202413243823820$79.77$2.54
May 20241491913423420$80.02$2.12
Apr 20241702075875870$85.35$1.60
Mar 2024156783103100$81.28$1.49
Feb 20241662014864860$77.25$1.72
Jan 20241401744294290$74.15$3.18
Dec 20231161772162160$71.90$2.52
Nov 2023130179000$77.69$2.71
Oct 20231150000$85.64$2.98
Sep 2023140173000$89.43$2.64
Aug 20231121741611610$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 6410)CountyStarr County

Killam Oil Co., Ltd. in Starr County

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Sun, North (Vicksburg 6410) field

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