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MONTALVO 'B' (NORTH) UNIT

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

1 well

43,135mcf gas, last 12 months−21% vs prior year
Operator
Killam Oil Co., Ltd.
County
Starr County
Field
Sun,north (5470)
RRC lease
04-291593

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Where it sits

This county

Starr CountyStarrBrooksJim HoggZapataHidalgoStarr County
Starr County
Oil, last 12 months
395 bbl
Gas in Jul 2026
2,908 mcf

Production by month

Gas output fell 21% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 21% over the last 12 monthsMonthly gas production and oil for MONTALVO 'B' (NORTH) UNIT, Aug 2023 to Jul 2026. Gas output fell 21% over the last 12 months. 43,135 mcf in the 12 months through Jul 2026, against 54,759 mcf in the 12 months before.Last 12 months: 43,135 mcfmcf per monthbbl per month002,500505,0001007,50015010k20012.5k250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 21% over the last 12 monthsMonthly gas production and oil for MONTALVO 'B' (NORTH) UNIT, Aug 2023 to Jul 2026. Gas output fell 21% over the last 12 months. 43,135 mcf in the 12 months through Jul 2026, against 54,759 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,500505,0001007,50015010k20012.5k250Jan 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' (NORTH) 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' (NORTH) 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' (NORTH) UNIT
API numberWell no.Status
42-427-347901Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Gulfmark Energy, Inc.CondensateGathers100Oct 18, 2021
Killam Oil Co., Ltd.Gas-well gasBuys100Oct 18, 2021
Enterprise Products Operating LLCGas-well gasGathers100Oct 18, 2021

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

Who buys my oilOil price check

80 acres on the newest permit

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Permits for Montalvo 'B' (North) Unit
API numberWell no.Acreson the permit
42-427-34790180

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

Unit decimal checker

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36 months, newest first

Ledger for MONTALVO 'B' (NORTH) UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262402,9082,9080$80.46$2.89
Jun 202627583,3033,3030$84.81$3.15
May 20266703,0713,0710$102.13$2.94
Apr 20261803,3923,3920$100.32$2.77
Mar 20261503,8133,8130$91.38$3.04
Feb 20261103,5823,5820$64.51$3.62
Jan 20261803,7523,7520$60.04$7.72
Dec 2025101684,0524,0520$57.97$4.26
Nov 202557574,3004,3000$60.06$3.79
Oct 202512423,2713,2710$60.89$3.19
Sep 20256103,9343,9340$63.96$2.97
Aug 202575933,7573,7570$64.86$2.91
Jul 202546284,3324,3320$68.39$3.20
Jun 20253203,8853,8850$68.17$3.02
May 202537274,5674,5670$62.17$3.12
Apr 202536294,1634,1630$63.54$3.42
Mar 20253904,2104,2100$68.24$4.12
Feb 202575824,5354,5350$71.53$4.19
Jan 2025110954,0784,0780$75.74$4.13
Dec 2024872474,5964,5960$70.12$3.01
Nov 202492514,6434,6430$69.95$2.12
Oct 202460325,2145,2140$71.99$2.20
Sep 202473635,1435,1430$70.24$2.28
Aug 202445245,3935,3930$76.68$1.99
Jul 2024911195,6295,6290$81.80$2.07
Jun 2024151936,2596,2590$79.77$2.54
May 202491495,8375,8370$80.02$2.12
Apr 20243376,5766,5760$85.35$1.60
Mar 2024311357,0387,0380$81.28$1.49
Feb 20243266,8766,8760$77.25$1.72
Jan 20243306,0586,0580$74.15$3.18
Dec 20233707,6317,6310$71.90$2.52
Nov 2023151777,7947,7940$77.69$2.71
Oct 20232307,5127,5120$85.64$2.98
Sep 20232707,9247,9240$89.43$2.64
Aug 202325010,17310,1730$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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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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