Montalvo B (North) Unit 1

Oil & Gas Property in Starr County, TX

  2. Texas
  3. Starr County, TX
  4. Oil & Gas Properties in Starr County, TX
  5. Montalvo B (North) Unit 1 Oil & Gas Property

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Property Summary

Key data points for Montalvo B (North) Unit 1

CountyStarr County, TX
OperatorKILLAM OIL CO., LTD.
Production DatesOct 2021 - Nov 2025
Total Oil Production2,946 BBLs
Total Gas Production446,167 MCF
Recent Oil Production12 BBLs in Oct 2025
Recent Gas Production3,271 MCF in Oct 2025
Wells on Property1

Our Valuation Estimates for Montalvo B (North) Unit 1

ShaleAssessment™

Not Available

MarketMultiple™

$21,809 **

* Assessment based on future expected revenue
** Based on a 36 month multiple of average monthly estimated revenue

Based on a decimal interest

Montalvo B (North) Unit 1 Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Montalvo B (North) Unit 1
from Oct 2021 to Nov 2025

Wells on Montalvo B (North) Unit 1

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-427-34790MONTALVO B (NORTH) UNIT 1KILLAM OIL CO., LTD.ProducingStarr County, TX26.709192-98.473101

Leases included in Montalvo B (North) Unit 1

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
04-291593MONTALVO B (NORTH) UNIT 1KILLAM OIL CO., LTD.Starr County, TX

Nearby Properties

These are the closest 20 properties to the Montalvo B (North) Unit 1 property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Amanda McKinneyStarr County, TX198 BBLs1,134 MCFNov 2025
Block E. HeirsStarr County, TX23 BBLs0 MCFNov 2025
Celestino Garza GuStarr County, TX79 BBLs1,881 MCFNov 2025
De GarzaStarr County, TX0 BBLs0 MCFMar 2021
De Lopez C.VStarr County, TX0 BBLs0 MCFJan 2024
De Lopez, C. V. AStarr County, TX0 BBLs0 MCFAug 2025
De Lopez, C.V.-BStarr County, TX5 BBLs733 MCFNov 2025
EloyStarr County, TX0 BBLs0 MCFJun 2025
Emma Pena Gas UnitStarr County, TX23 BBLs8,270 MCFNov 2025
Farias N.AStarr County, TX33 BBLs2,230 MCFNov 2025
Garza-Montalvo Gas UnitStarr County, TX2 BBLs1,162 MCFNov 2025
I.V. MontalvoStarr County, TX184 BBLs6,532 MCFNov 2025
LaurelStarr County, TX6 BBLs0 MCFOct 2025
LaurelStarr County, TX39 BBLs1,084 MCFNov 2025
McKinney, Mrs. AStarr County, TX0 BBLs0 MCFSep 1996
MontalvoStarr County, TX623 BBLs2,807 MCFNov 2025
N.R. MontalvoStarr County, TX0 BBLs0 MCFMay 2020
PenaStarr County, TX0 BBLs0 MCFJul 2006
SaenzStarr County, TX5 BBLs0 MCFOct 2025
Texas Osage GStarr County, TX2 BBLs1,297 MCFNov 2025

Companies in the Area

These are the closest 20 companies operating near the Montalvo B (North) Unit 1 property.

Company Name
Brazos Petroleum, Inc.
Bse Production Co.
Comstock Oil & Gas, Inc.
Cummins & Walker Oil Co., Inc.
Cyber Enviro-Tech Inc
Exxon Corporation
Kerr-McGee Corporation
Kerr-McGee Oil & Gas Onshore LLC
Kerr-McGee Oil & Gas Onshore LP
Killam Oil Co., LTD.
Merit Energy Company
Mueller Engineering Corp.
Oryx Energy Company
Rand - Paulson Oil Company, Inc.
Reh Energy, Inc.
Reserve Operating Corp.
Samson Lone Star LP
Shana Petroleum Company
Triad O&G, LLC
Valley Petrochemicals, LLC

Owners of Montalvo B (North) Unit 1

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025KILLAM OIL COMPANY LTDMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025ALANIZ MARIA ISABELMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025PERSON WHITWORTH BORCHERS & MORALES LLMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025MARTINEZ MARIA CHRISTINAMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025ALANIZ REYNALDO & MARGARITA FAMILY MGMTMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025SAN MARCOS RANCH LPMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025KOSTARR RESOURCES LLCMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
2025GUERRA JUAN ROBERTOMONTALVO 'B' UNIT #1KILLAM OIL COMPANY LTD
Displaying 8 of 21 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Montalvo B (North) Unit 1

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
04-291593MONTALVO B (NORTH) UNIT 1Nov 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Nov 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Oct 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Oct 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Sep 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Aug 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Aug 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Jul 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Jul 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Jun 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1May 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1May 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Apr 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Apr 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Mar 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Feb 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Feb 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Jan 2025KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Jan 2025GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Dec 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Dec 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Nov 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Nov 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Oct 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Oct 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.