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 - Oct 2025
Total Oil Production925,390 BBLs
Total Gas Production607,154 MCF
Recent Oil Production1,804 BBLs in Sep 2025
Recent Gas Production706 MCF in Sep 2025
Wells on Property4

Our Valuation Estimates for Heffernan

ShaleAssessment™

$114,511 *

MarketMultiple™

$253,500 **

* 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 Oct 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, TX14,040 BBLs9,791 MCFOct 2025
Atascosa 601 UnitAtascosa County, TX564 BBLs875 MCFOct 2025
Beltran UnitAtascosa County, TX611 BBLs1,203 MCFOct 2025
Cap UnitAtascosa County, TX6,084 BBLs5,457 MCFOct 2025
Emil UnitAtascosa County, TX462 BBLs278 MCFOct 2025
Ernest UnitAtascosa County, TX411 BBLs248 MCFOct 2025
HirschAtascosa County, TX91 BBLs821 MCFOct 2025
Impala UnitAtascosa County, TX325 BBLs360 MCFSep 2025
Jason UnitAtascosa County, TX7,787 BBLs6,762 MCFOct 2025
Joanne UnitAtascosa County, TX1,053 BBLs1,087 MCFOct 2025
Marietta UnitAtascosa County, TX624 BBLs1,194 MCFOct 2025
Mildred UnitAtascosa County, TX852 BBLs1,127 MCFOct 2025
Nina UnitAtascosa County, TX678 BBLs662 MCFOct 2025
Pacheco UnitAtascosa County, TX686 BBLs730 MCFOct 2025
Seiffert UnitAtascosa County, TX481 BBLs171 MCFOct 2025
Skeeter UnitAtascosa County, TX1,358 BBLs2,870 MCFOct 2025
Stockhorst UnitAtascosa County, TX504 BBLs667 MCFOct 2025
Tiro UnitAtascosa County, TX470 BBLs565 MCFOct 2025
Wheeler UnitAtascosa County, TX449 BBLs2,071 MCFOct 2025
Worden UnitAtascosa County, TX369 BBLs362 MCFOct 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.
Mazco Energy LLC
Murphy Expl. & Prod. Co. - USA
Pearl, Bill H. Productions, Inc.
Pillar Efs, LLC
Rosewood Resources Inc
TD Natural Resources LLC
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.