Spahn-Mikkelson Unit

Oil & Gas Property in Karnes County, TX

  2. Texas
  3. Karnes County, TX
  4. Oil & Gas Properties in Karnes County, TX
  5. Spahn-Mikkelson Unit Oil & Gas Property

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Property Summary

Key data points for Spahn-Mikkelson Unit

CountyKarnes County, TX
OperatorMARATHON OIL EF LLC
Production DatesMay 2012 - Sep 2025
Total Oil Production989,727 BBLs
Total Gas Production1,461,200 MCF
Recent Oil Production968 BBLs in Aug 2025
Recent Gas Production2,258 MCF in Aug 2025
Wells on Property4

Our Valuation Estimates for Spahn-Mikkelson Unit

ShaleAssessment™

$38,389 *

MarketMultiple™

$189,681 **

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

Based on a decimal interest

Spahn-Mikkelson Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Spahn-Mikkelson Unit
from May 2012 to Sep 2025

Wells on Spahn-Mikkelson Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-255-32408SPAHN-MIKKELSON UNIT 1HMARATHON OIL EF LLCProducingKarnes County, TX28.872831-97.927820
42-255-32551SPAHN-MIKKELSON UNIT 2HMARATHON OIL EF LLCShut InKarnes County, TX28.883353-97.939711
42-255-36375SPAHN-MIKKELSON UNIT 3HMARATHON OIL EF LLCProducingKarnes County, TX28.883907-97.937915
42-255-36376SPAHN-MIKKELSON UNIT 503HMARATHON OIL EF LLCProducingKarnes County, TX28.883664-97.937708

Leases included in Spahn-Mikkelson Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
02-10060SPAHN-MIKKELSON UNITMARATHON OIL EF LLCKarnes County, TX

Nearby Properties

These are the closest 20 properties to the Spahn-Mikkelson Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Carter UnitKarnes County, TX1,793 BBLs3,934 MCFSep 2025
Egbert UnitKarnes County, TX5,945 BBLs11,082 MCFSep 2025
Kempe-Laubach UnitKarnes County, TX4,170 BBLs8,798 MCFSep 2025
McCoy EgbertKarnes County, TX10,504 BBLs22,601 MCFSep 2025
McCoy-Egbert-Carter Unit Sa1Karnes County, TX4,908 BBLs11,235 MCFSep 2025
Mikkelson-WitteKarnes County, TX5,325 BBLs10,080 MCFSep 2025
Rippstein-Gotthardt UnitKarnes County, TX6,816 BBLs5,480 MCFSep 2025
Rippstein-Hons Rafter SaKarnes County, TX26,692 BBLs52,758 MCFSep 2025
Rippstein-MikkelsonKarnes County, TX6,936 BBLs9,650 MCFSep 2025
Rogers UnitKarnes County, TX1,091 BBLs940 MCFSep 2025
Rogers-McCoy Egbert SaKarnes County, TX2,243 BBLs2,709 MCFSep 2025
S.Busselman-R.Mikkelson SaKarnes County, TX992 BBLs160 MCFSep 2025
Salge UnitKarnes County, TX1,092 BBLs3,574 MCFSep 2025
Salge-Busselman UnitKarnes County, TX3,750 BBLs4,096 MCFSep 2025
Salge-Egbert Miller (Sa)Karnes County, TX1,358 BBLs1,007 MCFSep 2025
Salge-Kinkler-Busselman AlcKarnes County, TX1,546 BBLs6,729 MCFSep 2025
Salge-Yanta SaKarnes County, TX1,372 BBLs3,855 MCFSep 2025
Witte-Mikkelson UnitKarnes County, TX1,127 BBLs2,780 MCFSep 2025
Y. Witte-K.Laubach PsaKarnes County, TX655 BBLs1,024 MCFSep 2025
Yosko Witte UnitKarnes County, TX0 BBLs0 MCFJul 2025

Companies in the Area

These are the closest 20 companies operating near the Spahn-Mikkelson Unit property.

Company Name
1776 Energy Operators, LLC
Blackbrush O & G, LLC
Burlington Resources Oil & Gas Company LP
Caturus Energy, LLC
Devon Energy Production Company, L.P.
Encana Oil & Gas (USA) Inc.
Greenwerks Outdoor Services LLC
Gulftex Energy, LLC
Hilcorp Energy Company
Jaybird Operating, LLC
Magnolia Oil & Gas Operating LLC
Marathon Oil Ef LLC
Murphy Expl. & Prod. Co. - USA
Natural Energy, Inc.
Ovintiv USA Inc.
Paloma Resources, LLC
Plains Exploration & Prod. Co.
Rio-Tex, Inc.
Rollert Co., Inc., The
Tidal Petroleum, Inc.

Frac'ing activity on Spahn-Mikkelson Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-255-32408Spahn Mikkelson 1H
42-255-32551Spahn Mikkelson 2H
42-255-36375Spahn Mikkelson 3H
42-255-36376Spahn Mikkelson 503H

Owners of Spahn-Mikkelson Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025SPAHN CLIFFORD M & BECKYSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025DICKENS SANDRA ERLERSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025MIKKELSON KATHLENE KAISERSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES USA INCSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025AMBER HARVEST LLCSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025EAGLE FORD AUSTIN INTERESTS LPSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
2025NINE CANYON INTERESTS LPSPAHN-MIKKELSON W#1H-3H,503HMARATHON OIL EF LLC
Displaying 8 of 16 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Spahn-Mikkelson Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
02-10060SPAHN-MIKKELSON UNITApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITApr 2025FREEPOINT COMMODITIES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025FREEPOINT COMMODITIES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025MARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025FREEPOINT COMMODITIES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025MARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITFeb 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025FREEPOINT COMMODITIES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025MARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITJan 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITDec 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10060SPAHN-MIKKELSON UNITDec 2024FREEPOINT COMMODITIES LLCMARATHON OIL EF LLC