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

Map of Wells Full Screen Map 3-D Map

Property Summary

Key data points for Montalvo B (North) Unit 1

CountyStarr County, TX
OperatorKILLAM OIL CO., LTD.
Production DatesOct 2021 - Oct 2025
Total Oil Production2,889 BBLs
Total Gas Production441,867 MCF
Recent Oil Production61 BBLs in Sep 2025
Recent Gas Production3,934 MCF in Sep 2025
Wells on Property1

Our Valuation Estimates for Montalvo B (North) Unit 1

ShaleAssessment™

Not Available

MarketMultiple™

$24,536 **

* 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
Subscribe for Full Access Subscribe now to gain immediate access
to oil and gas production for Montalvo B (North) Unit 1
from Oct 2021 to Oct 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, TX187 BBLs1,853 MCFOct 2025
Block E. HeirsStarr County, TX25 BBLs0 MCFOct 2025
Celestino Garza GuStarr County, TX84 BBLs1,923 MCFOct 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, TX16 BBLs1,020 MCFOct 2025
EloyStarr County, TX0 BBLs0 MCFJun 2025
Emma Pena Gas UnitStarr County, TX19 BBLs9,019 MCFOct 2025
Farias N.AStarr County, TX38 BBLs2,242 MCFOct 2025
Garza-Montalvo Gas UnitStarr County, TX17 BBLs1,004 MCFOct 2025
I.V. MontalvoStarr County, TX410 BBLs8,465 MCFOct 2025
LaurelStarr County, TX56 BBLs1,118 MCFOct 2025
LaurelStarr County, TX6 BBLs0 MCFOct 2025
McKinney, Mrs. AStarr County, TX0 BBLs0 MCFSep 1996
MontalvoStarr County, TX486 BBLs2,463 MCFOct 2025
N.R. MontalvoStarr County, TX0 BBLs0 MCFMay 2020
PenaStarr County, TX0 BBLs0 MCFApr 2006
SaenzStarr County, TX0 BBLs0 MCFOct 2025
Texas Osage GStarr County, TX0 BBLs1,429 MCFOct 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
2025SAN MARCOS RANCH LPMONTALVO '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
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 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.
04-291593MONTALVO B (NORTH) UNIT 1Sep 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Sep 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Aug 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Aug 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Jul 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Jul 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Jun 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Jun 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1May 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1May 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Apr 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Apr 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Mar 2024KOSTARR RESOURCES, LLC
04-291593MONTALVO B (NORTH) UNIT 1Mar 2024GULFMARK ENERGY, INC.KILLAM OIL CO., LTD.
04-291593MONTALVO B (NORTH) UNIT 1Feb 2024KOSTARR RESOURCES, LLC