Wilhelm-Smith Unit

Oil & Gas Property in Atascosa County, TX

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

Map of Wells Full Screen Map 3-D Map

Property Summary

Key data points for Wilhelm-Smith Unit

CountyAtascosa County, TX
OperatorMARATHON OIL EF LLC
Production DatesDec 2012 - Oct 2025
Total Oil Production2,222,188 BBLs
Total Gas Production2,511,387 MCF
Recent Oil Production2,157 BBLs in Sep 2025
Recent Gas Production3,581 MCF in Sep 2025
Wells on Property10

Our Valuation Estimates for Wilhelm-Smith Unit

ShaleAssessment™

Not Available

MarketMultiple™

$345,168 **

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

Based on a decimal interest

Wilhelm-Smith Unit 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 Wilhelm-Smith Unit
from Dec 2012 to Oct 2025

Wells on Wilhelm-Smith Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34561WILHELM-SMITH UNIT A 1HMARATHON OIL EF LLCShut InAtascosa County, TX28.735880-98.214172
42-013-34562WILHELM-SMITH UNIT A 2HMARATHON OIL EF LLCProducingAtascosa County, TX28.735898-98.214227
42-013-34563WILHELM-SMITH UNIT A 3HMARATHON OIL EF LLCProducingAtascosa County, TX28.735883-98.214330
42-013-34564WILHELM-SMITH UNIT A 4HMARATHON OIL EF LLCProducingAtascosa County, TX28.735884-98.214408
42-013-34674WILHELM SMITH UNIT B 1HMARATHON OIL EF LLCProducingAtascosa County, TX28.728718-98.215011
42-013-34679WILHELM SMITH UNIT B 2HMARATHON OIL EF LLCShut InAtascosa County, TX28.728668-98.215276
42-013-35514WILHELM SMITH UNIT B 3HMARATHON OIL EF LLCProducingAtascosa County, TX28.729123-98.215958
42-013-35515WILHELM SMITH UNIT B 4HMARATHON OIL EF LLCProducingAtascosa County, TX28.729414-98.216361
42-013-35516WILHELM SMITH UNIT B 5HMARATHON OIL EF LLCProducingAtascosa County, TX28.729192-98.216131
42-013-35713WILHELM SMITH UNIT B 6HMARATHON OIL EF LLCProducingAtascosa County, TX28.723703-98.223675

Leases included in Wilhelm-Smith Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
01-16354WILHELM-SMITH UNIT AMARATHON OIL EF LLCAtascosa County, TX
02-10530WILHELM SMITH UNIT BMARATHON OIL EF LLCAtascosa County, TX

Nearby Properties

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

Property NameLocationOil Prod.Gas Prod.Prod. Period
Anthony West UnitAtascosa County, TX349 BBLs276 MCFOct 2025
Bros UnitAtascosa County, TX1,848 BBLs1,780 MCFOct 2025
Esse-Smith Ranch UnitAtascosa County, TX914 BBLs944 MCFOct 2025
Giese UnitAtascosa County, TX2,434 BBLs2,332 MCFOct 2025
Henke UnitAtascosa County, TX2,051 BBLs2,300 MCFOct 2025
Henke-Wilhelm UnitAtascosa County, TX2,916 BBLs3,056 MCFOct 2025
JTN UnitAtascosa County, TX294 BBLs228 MCFOct 2025
May GirlsAtascosa County, TX4,343 BBLs3,244 MCFOct 2025
May Girls-Chapman UnitAtascosa County, TX0 BBLs0 MCFOct 2025
MCS FoundationAtascosa County, TX68,986 BBLs64,702 MCFOct 2025
Pat UnitAtascosa County, TX750 BBLs1,235 MCFOct 2025
R May A-May Girls Chapman Sa2Atascosa County, TX18,201 BBLs19,943 MCFOct 2025
R May A-Schroeder Chapman Sa1Atascosa County, TX17,068 BBLs16,995 MCFOct 2025
Retzloff-Chapman UnitLive Oak County, TX235 BBLs376 MCFOct 2025
Retzloff-MayAtascosa County, TX9,267 BBLs7,066 MCFOct 2025
Retzloff-TomAtascosa County, TX3,052 BBLs1,565 MCFOct 2025
Schroeder-Chapman UnitAtascosa County, TX1,342 BBLs721 MCFOct 2025
Tom Family UnitAtascosa County, TX7,160 BBLs6,120 MCFOct 2025
Tom Family-Retzloff SaAtascosa County, TX6,613 BBLs1,512 MCFOct 2025
Tom-Smith Unit AAtascosa County, TX2,898 BBLs4,190 MCFOct 2025

Companies in the Area

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

Company Name
Aggietech Oil, LTD.
Burlington Resources Oil & Gas Company LP
Chevron USA Inc
Dorchester Operating Company LLC
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
Somex Energy Company
Tidal Petroleum, Inc.
Venus Oil Company
Verdun Oil & Gas LLC
XTO Energy Inc.

Frac'ing activity on Wilhelm-Smith Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34561Wilhelm Smith A 1H
42-013-34562Wilhelm Smith A 3H
42-013-34564Wilhelm Smith A 4H
42-013-34674Wilhelm Smith B 1H
42-013-34679Wilhelm Smith B 2H
42-013-35514Wilhelm-Smith Unit B 3H
42-013-35515Wilhelm-Smith Unit B 4H
42-013-35516Wilhelm-Smith Unit B 5H
42-013-35713Wilhelm Smith B 6H

Owners of Wilhelm-Smith Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025MCS MINERALS LTDWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025JLT O&G LPWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025MCS CHARITABLE FOUNDATIONWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025RETZLOFF FAMILY LTD PTRWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025WALKER ANNETTE KAYWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025AMBER HARVEST LLCWILHELM SMITH UNIT BMARATHON OIL EF LLC
2025MARATHON OIL EF LLCWILHELM-SMITH UNIT AMARATHON OIL EF LLC
Displaying 8 of 68 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Wilhelm-Smith Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
01-16354WILHELM-SMITH UNIT AApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025MARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BMar 2025MARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025MARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BFeb 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BFeb 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BFeb 2025MARATHON OIL EF LLC
02-10530WILHELM SMITH UNIT BFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-16354WILHELM-SMITH UNIT AJan 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC