Heffernan

Oil & Gas Property in Atascosa County, TX

  2. Texas
  3. Atascosa County, TX
  4. Oil & Gas Properties in Atascosa County, TX
  5. Heffernan Oil & Gas Property

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Property Summary

Key data points for Heffernan

CountyAtascosa County, TX
OperatorEOG RESOURCES, INC.
Production DatesJul 2013 - Jul 2025
Total Oil Production919,427 BBLs
Total Gas Production604,748 MCF
Recent Oil Production3,160 BBLs in Jun 2025
Recent Gas Production2,924 MCF in Jun 2025
Wells on Property4

Our Valuation Estimates for Heffernan

ShaleAssessment™

$118,710 *

MarketMultiple™

$249,734 **

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

Based on a decimal interest

Heffernan Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Heffernan
from Jul 2013 to Jul 2025

Wells on Heffernan

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34681HEFFERNAN A UNIT 1HEOG RESOURCES, INC.ProducingAtascosa County, TX28.814634-98.504917
42-013-34688HEFFERNAN A UNIT 2HEOG RESOURCES, INC.ProducingAtascosa County, TX28.814645-98.504809
42-013-34725HEFFERNAN B UNIT 4HEOG RESOURCES, INC.ProducingAtascosa County, TX28.796022-98.506953
42-013-34727HEFFERNAN B UNIT 3HEOG RESOURCES, INC.ProducingAtascosa County, TX28.796035-98.506847

Leases included in Heffernan

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
01-17001HEFFERNAN A UNITEOG RESOURCES, INC.Atascosa County, TX
01-17113HEFFERNAN B UNITEOG RESOURCES, INC.Atascosa County, TX

Nearby Properties

These are the closest 20 properties to the Heffernan property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
AppaloosaAtascosa County, TX17,615 BBLs19,806 MCFJul 2025
Atascosa 601 UnitAtascosa County, TX571 BBLs811 MCFJul 2025
Beltran UnitAtascosa County, TX566 BBLs1,525 MCFJul 2025
Cap UnitAtascosa County, TX9,854 BBLs6,219 MCFJul 2025
Duren UnitAtascosa County, TX733 BBLs477 MCFJul 2025
Emil UnitAtascosa County, TX287 BBLs352 MCFJul 2025
Ferdinand UnitAtascosa County, TX935 BBLs638 MCFJul 2025
HirschAtascosa County, TX511 BBLs1,200 MCFJul 2025
Hobart UnitAtascosa County, TX899 BBLs1,100 MCFJul 2025
Janice UnitAtascosa County, TX463 BBLs147 MCFJul 2025
Jason UnitAtascosa County, TX10,680 BBLs6,648 MCFJul 2025
Mildred UnitAtascosa County, TX505 BBLs572 MCFJul 2025
Nina UnitAtascosa County, TX791 BBLs819 MCFJul 2025
Pacheco UnitAtascosa County, TX824 BBLs907 MCFJul 2025
Pipes UnitAtascosa County, TX577 BBLs501 MCFJul 2025
Skeeter UnitAtascosa County, TX1,443 BBLs2,708 MCFJul 2025
Tiro UnitAtascosa County, TX619 BBLs523 MCFJul 2025
Wheeler UnitAtascosa County, TX395 BBLs583 MCFJul 2025
Willie Nelson UnitAtascosa County, TX333 BBLs251 MCFJul 2025
Worden UnitAtascosa County, TX683 BBLs807 MCFJul 2025

Companies in the Area

These are the closest 20 companies operating near the Heffernan property.

Company Name
Atascosa Exploration, LLC
Atlas Eagle Ford Oper Co, LLC
Atlas Operating LLC
Bay Rock Operating Company
Brymer Contracting Incorporated
Carrizo (Eagle Ford) LLC
Cinco Oil & Gas, LLC
EOG Resources, Inc.
Exxon Corporation
Finger Oil & Gas, Inc.
Guinn Operating Company, LLC
Henry Petroleum Corp.
Javelin Energy Partners Management, LLC
Mazco Energy LLC
Murphy Expl. & Prod. Co. - USA
Pearl, Bill H. Productions, Inc.
Pillar Efs, LLC
Rosewood Resources, Inc.
Texas American Resources Company
Trailblazer Energy Resources, LLC

Frac'ing activity on Heffernan

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34681HEFFERNAN A UNIT # 1H
42-013-34688HEFFERNAN A UNIT # 2H
42-013-34725HEFFERNAN B UNIT # 4H
42-013-34727HEFFERNAN B UNIT # 3H

Owners of Heffernan

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025EOG RESOURCES INCHEFFERNAN B UNITEOG RESOURCES, INC.
2025MARSHALL LIVING TRUSTHEFFERNAN B UNITEOG RESOURCES, INC.
2025HEFFERNAN GLENNHEFFERNAN B UNITEOG RESOURCES, INC.
2025MEADE JAMES G & IRMA LHEFFERNAN B UNITEOG RESOURCES, INC.
2025FREEHOLD ROYALTIES (USA) INCHEFFERNAN B UNITEOG RESOURCES, INC.
2025EOG RESOURCES INCHEFFERNAN A UNITEOG RESOURCES, INC.
2025THIELE OTTO M JRHEFFERNAN B UNITEOG RESOURCES, INC.
2025MICKLER BETTY MADGEHEFFERNAN B UNITEOG RESOURCES, INC.
Displaying 8 of 104 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Heffernan

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
01-17001HEFFERNAN A UNITApr 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITApr 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITMar 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17001HEFFERNAN A UNITMar 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITMar 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITMar 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITMar 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITMar 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITMar 2025EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITMar 2025EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2025EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2025EOG RESOURCES, INC.