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 - Jul 2025
Total Oil Production1,417,679 BBLs
Total Gas Production1,716,129 MCF
Recent Oil Production2,566 BBLs in Jun 2025
Recent Gas Production5,031 MCF in Jun 2025
Wells on Property7

Our Valuation Estimates for Tom-Smith Unit A

ShaleAssessment™

$122,377 *

MarketMultiple™

$421,756 **

* 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
Subscribe for Full Access Subscribe now to gain immediate access
to oil and gas production for Tom-Smith Unit A
from Oct 2014 to Jul 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, TX379 BBLs222 MCFJul 2025
Anthony West UnitAtascosa County, TX307 BBLs229 MCFJul 2025
Bros UnitAtascosa County, TX2,598 BBLs2,380 MCFJul 2025
Giese UnitAtascosa County, TX2,731 BBLs3,405 MCFJul 2025
Henke UnitAtascosa County, TX2,978 BBLs3,894 MCFJul 2025
Henke-Wilhelm UnitAtascosa County, TX2,549 BBLs4,372 MCFJul 2025
JTN UnitAtascosa County, TX306 BBLs83 MCFJul 2025
May GirlsAtascosa County, TX937 BBLs95 MCFJul 2025
May Girls-Chapman UnitAtascosa County, TX0 BBLs0 MCFJul 2025
May-ChapmanAtascosa County, TX4,829 BBLs4,355 MCFJul 2025
Nancy EdmundAtascosa County, TX3,561 BBLs5,302 MCFJul 2025
Net-BrosAtascosa County, TX1,097 BBLs1,527 MCFJul 2025
Pat UnitAtascosa County, TX696 BBLs524 MCFJul 2025
R May A-May Girls Chapman Sa2Atascosa County, TX32,194 BBLs27,248 MCFJul 2025
R May A-Schroeder Chapman Sa1Atascosa County, TX36,311 BBLs31,769 MCFJul 2025
R. MayAtascosa County, TX10,153 BBLs9,673 MCFJul 2025
Retzloff-Chapman UnitLive Oak County, TX739 BBLs444 MCFJul 2025
Schroeder-Chapman UnitAtascosa County, TX1,060 BBLs648 MCFJul 2025
W. Smith B-A-MCS PsaAtascosa County, TX1,219 BBLs1,315 MCFJul 2025
Wilhelm-Smith UnitAtascosa County, TX2,228 BBLs3,361 MCFJul 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
2025AMBER HARVEST LLCTOM-SMITH UNIT AMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES (USA) INCTOM-SMITH UNIT AMARATHON OIL EF LLC
2025EAGLE FORD AUSTIN INTERESTS LPTOM-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