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 - Mar 2026
Total Oil Production930,972 BBLs
Total Gas Production609,084 MCF
Recent Oil Production657 BBLs in Feb 2026
Recent Gas Production240 MCF in Feb 2026
Wells on Property4

Our Valuation Estimates for Heffernan

ShaleAssessment™

$108,260 *

MarketMultiple™

$148,006 **

* 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 Mar 2026

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
Ahrens UnitAtascosa County, TX503 BBLs923 MCFMar 2026
AppaloosaAtascosa County, TX11,818 BBLs15,171 MCFMar 2026
Atascosa 601 UnitAtascosa County, TX547 BBLs800 MCFMar 2026
Beltran UnitAtascosa County, TX497 BBLs920 MCFMar 2026
Cap UnitAtascosa County, TX4,203 BBLs3,420 MCFMar 2026
Ferdinand UnitAtascosa County, TX444 BBLs109 MCFMar 2026
Friesenhahn UnitAtascosa County, TX853 BBLs244 MCFMar 2026
HirschAtascosa County, TX506 BBLs1,512 MCFMar 2026
Hobart UnitAtascosa County, TX888 BBLs281 MCFMar 2026
Jason UnitAtascosa County, TX4,655 BBLs5,534 MCFMar 2026
Joanne UnitAtascosa County, TX736 BBLs681 MCFMar 2026
Massaro UnitAtascosa County, TX478 BBLs1,055 MCFMar 2026
Mildred UnitAtascosa County, TX760 BBLs786 MCFMar 2026
Nina UnitAtascosa County, TX610 BBLs594 MCFMar 2026
Pacheco UnitAtascosa County, TX657 BBLs669 MCFMar 2026
Pipes UnitAtascosa County, TX610 BBLs472 MCFMar 2026
Skeeter UnitAtascosa County, TX1,267 BBLs2,486 MCFMar 2026
Tiro UnitAtascosa County, TX594 BBLs437 MCFMar 2026
Willie Nelson UnitAtascosa County, TX304 BBLs200 MCFMar 2026
Worden UnitAtascosa County, TX686 BBLs556 MCFMar 2026

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
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.
Rosewood Resources Inc
Seagull Operating Co., Inc.
TD Natural Resources LLC
Texas American Resources Company
Trailblazer Energy Resources, LLC
Virtex Operating Company, Inc.

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 UNITMar 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITMar 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2026EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITFeb 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITFeb 2026EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2026EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2026EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2026EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITJan 2026EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITJan 2026EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITDec 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITDec 2025EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITDec 2025EOG RESOURCES, INC.EOG RESOURCES, INC.
01-17001HEFFERNAN A UNITDec 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.
01-17113HEFFERNAN B UNITDec 2025EOG RESOURCES, INC.
01-17113HEFFERNAN B UNITDec 2025EOG RESOURCES MARKETING LLCEOG RESOURCES, INC.