Tom-Smith Unit A

Oil & Gas Property in Atascosa County, TX

  2. Texas
  3. Atascosa County, TX
  4. Oil & Gas Properties in Atascosa County, TX
  5. Tom-Smith Unit A Oil & Gas Property

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Property Summary

Key data points for Tom-Smith Unit A

CountyAtascosa County, TX
OperatorMARATHON OIL EF LLC
Production DatesOct 2014 - Sep 2025
Total Oil Production1,423,380 BBLs
Total Gas Production1,724,982 MCF
Recent Oil Production2,807 BBLs in Aug 2025
Recent Gas Production4,663 MCF in Aug 2025
Wells on Property7

Our Valuation Estimates for Tom-Smith Unit A

ShaleAssessment™

$118,971 *

MarketMultiple™

$390,063 **

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

Based on a decimal interest

Tom-Smith Unit A Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Tom-Smith Unit A
from Oct 2014 to Sep 2025

Wells on Tom-Smith Unit A

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34871TOM-SMITH UNIT A 3HMARATHON OIL EF LLCProducingAtascosa County, TX28.722206-98.225608
42-013-34872TOM-SMITH UNIT A 4HMARATHON OIL EF LLCHorizontal Well Surface LocatioAtascosa County, TX28.722148-98.225677
42-013-34873TOM-SMITH UNIT A 5HMARATHON OIL EF LLCProducingAtascosa County, TX28.722094-98.225746
42-013-34992TOM-SMITH UNIT A 6HMARATHON OIL EF LLCProducingAtascosa County, TX28.722260-98.225536
42-013-35343TOM-SMITH UNIT A 2HMARATHON OIL EF LLCProducingAtascosa County, TX28.723531-98.223894
42-013-35344TOM-SMITH UNIT A 1HMARATHON OIL EF LLCProducingAtascosa County, TX28.723587-98.223827
42-013-35709TOM-SMITH UNIT A 7HMARATHON OIL EF LLCProducingAtascosa County, TX28.723642-98.223747

Leases included in Tom-Smith Unit A

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
01-17689TOM-SMITH UNIT AMARATHON OIL EF LLCAtascosa County, TX

Nearby Properties

These are the closest 20 properties to the Tom-Smith Unit A property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Anthony East Unit 1Atascosa County, TX357 BBLs212 MCFSep 2025
Anthony West UnitAtascosa County, TX462 BBLs278 MCFSep 2025
BLT UnitAtascosa County, TX947 BBLs126 MCFSep 2025
Bros UnitAtascosa County, TX1,305 BBLs1,501 MCFSep 2025
Esse-Smith Ranch UnitAtascosa County, TX1,977 BBLs1,691 MCFSep 2025
Giese UnitAtascosa County, TX4,073 BBLs4,454 MCFSep 2025
Henke UnitAtascosa County, TX1,709 BBLs1,208 MCFSep 2025
Henke-Wilhelm UnitAtascosa County, TX2,646 BBLs3,116 MCFSep 2025
May GirlsAtascosa County, TX5,473 BBLs4,586 MCFSep 2025
May Girls-Chapman UnitAtascosa County, TX0 BBLs0 MCFJul 2025
May-ChapmanAtascosa County, TX2,438 BBLs3,076 MCFSep 2025
Nancy EdmundAtascosa County, TX3,303 BBLs5,084 MCFSep 2025
Net-BrosAtascosa County, TX848 BBLs906 MCFSep 2025
Pat UnitAtascosa County, TX1,005 BBLs1,367 MCFSep 2025
R May A-May Girls Chapman Sa2Atascosa County, TX30,406 BBLs30,849 MCFSep 2025
R May A-Schroeder Chapman Sa1Atascosa County, TX25,314 BBLs23,195 MCFSep 2025
R. MayAtascosa County, TX27,251 BBLs20,415 MCFSep 2025
Retzloff-Chapman UnitLive Oak County, TX25 BBLs320 MCFSep 2025
Schroeder-Chapman UnitAtascosa County, TX1,932 BBLs718 MCFSep 2025
Wilhelm-Smith UnitAtascosa County, TX3,519 BBLs5,823 MCFSep 2025

Companies in the Area

These are the closest 20 companies operating near the Tom-Smith Unit A property.

Company Name
Aggietech Oil, LTD.
Burlington Resources Oil & Gas Company LP
Chevron USA Inc
Enserch Exploration Inc
EOG Resources Inc
Magnolia Oil & Gas Operating LLC
Marathon Oil Ef LLC
Miller, W. C. Operating Company
Murphy Expl. & Prod. Co. - USA
Newfield Exploration Company
Pioneer Natural Res. USA, Inc.
Rollert Co., Inc., The
Sea Eagle Ford, LLC
Silverbow Resources Oper, LLC
Teal Operating, LLC
Tidal Petroleum, Inc.
Venus Oil Company
Verdun Oil & Gas LLC
Warwick-Artemis, LLC
XTO Energy Inc.

Frac'ing activity on Tom-Smith Unit A

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34871Tom Smith A 3H
42-013-34873Tom Smith A 5H
42-013-34992Tom Smith A 6H
42-013-35343Tom Smith Unit A 2H
42-013-35344Tom Smith Unit A 1H
42-013-35709Tom Smith Unit A 7H

Owners of Tom-Smith Unit A

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCTOM-SMITH UNIT AMARATHON OIL EF LLC
2025JLT O&G LPTOM-SMITH UNIT AMARATHON OIL EF LLC
2025MCS MINERALS LTD AGMT DTD 6-14-99TOM-SMITH UNIT AMARATHON OIL EF LLC
2025MCS CHARITABLE FOUNDATIONTOM-SMITH UNIT AMARATHON OIL EF LLC
2025WALKER ANNETTE KAYTOM-SMITH UNIT AMARATHON OIL EF LLC
2025EAGLE FORD AUSTIN INTERESTS LPTOM-SMITH UNIT AMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES (USA) INCTOM-SMITH UNIT AMARATHON OIL EF LLC
2025AMBER HARVEST LLCTOM-SMITH UNIT AMARATHON OIL EF LLC
Displaying 8 of 27 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Tom-Smith Unit A

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
01-17689TOM-SMITH UNIT AApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025MARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025MARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AFeb 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025MARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT AJan 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024MARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-17689TOM-SMITH UNIT ADec 2024ENERFIN AGUA DULCE LPMARATHON OIL EF LLC