Gross-McLean Unit

Oil & Gas Property in Karnes County, TX

Property Summary

Key data points for Gross-McLean Unit

CountyKarnes County, TX
OperatorMARATHON OIL EF LLC
Production DatesNov 2012 - Oct 2025
Total Oil Production1,135,108 BBLs
Total Gas Production3,269,891 MCF
Recent Oil Production434 BBLs in Sep 2025
Recent Gas Production808 MCF in Sep 2025
Wells on Property6

Our Valuation Estimates for Gross-McLean Unit

ShaleAssessment

$42,570 *

MarketMultiple

$178,895 **

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

Based on a decimal interest

Gross-McLean Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Gross-McLean Unit
from Nov 2012 to Oct 2025

Wells on Gross-McLean Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-255-32669GROSS-MCLEAN UNIT 1HMARATHON OIL EF LLCProducingKarnes County, TX28.821247-97.978677
42-255-32705GROSS-MCLEAN UNIT 2HMARATHON OIL EF LLCShut InKarnes County, TX28.821221-97.978749
42-255-32968GROSS-MCLEAN UNIT 3HMARATHON OIL EF LLCShut InKarnes County, TX28.807845-97.975966
42-255-36027GROSS-MCLEAN UNIT 4HMARATHON OIL EF LLCTemp AbandonedKarnes County, TX28.818816-97.982156
42-255-36028GROSS-MCLEAN UNIT 5HMARATHON OIL EF LLCProducingKarnes County, TX28.818785-97.982248
42-255-36507GROSS-MCLEAN UNIT 502HMARATHON OIL EF LLCProducingKarnes County, TX28.820902-97.974987

Leases included in Gross-McLean Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
02-10338GROSS-MCLEAN UNITMARATHON OIL EF LLCKarnes County, TX
02-294905GROSS-MCLEAN UNIT 4HMARATHON OIL EF LLCKarnes County, TX
02-294906GROSS-MCLEAN UNIT 502HMARATHON OIL EF LLCKarnes County, TX
02-294907GROSS-MCLEAN UNIT 5HMARATHON OIL EF LLCKarnes County, TX

Nearby Properties

These are the closest 20 properties to the Gross-McLean Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Best-Beard UnitKarnes County, TX232 BBLs733 MCFOct 2025
Brown DupnikKarnes County, TX3,462 BBLs6,474 MCFOct 2025
Buehring UnitKarnes County, TX2,750 BBLs6,086 MCFOct 2025
Davenport UnitKarnes County, TX0 BBLs0 MCFJun 2025
Fransen UnitKarnes County, TX23,897 BBLs41,419 MCFNov 2025
Fransen-Direct Assets SaKarnes County, TX42,218 BBLs76,640 MCFNov 2025
Gilley UnitKarnes County, TX2,318 BBLs8,053 MCFOct 2025
Gross-RobertKarnes County, TX2,098 BBLs12,214 MCFOct 2025
Holland-Brown UnitKarnes County, TX1,859 BBLs1,790 MCFOct 2025
Jordan UnitKarnes County, TX2,993 BBLs4,307 MCFOct 2025
Jordan-Buehring Unit SaKarnes County, TX421 BBLs1,546 MCFOct 2025
Kimble-GilleyKarnes County, TX3,789 BBLs17,761 MCFOct 2025
Luna UnitKarnes County, TX5,783 BBLs17,764 MCFOct 2025
Luna-May Unit PsaKarnes County, TX913 BBLs77 MCFOct 2025
May Unit 1Karnes County, TX5,256 BBLs25,997 MCFOct 2025
Pfeifer UnitKarnes County, TX559 BBLs634 MCFOct 2025
Pfeifer-BellKarnes County, TX5,845 BBLs14,918 MCFOct 2025
Pfeifer-Whitley Mejor SaKarnes County, TX3,446 BBLs8,981 MCFOct 2025
Robert Bowman UnitKarnes County, TX1,866 BBLs3,623 MCFOct 2025
Whitley Mejor UnitKarnes County, TX529 BBLs542 MCFOct 2025

Frac'ing activity on Gross-McLean Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-255-32669Gross McLean Unit 1H
42-255-32705Gross McLean Unit 2H
42-255-32968Gross McLean 3H
42-255-36027Gross McLean Unit 4H
42-255-36028Gross McLean Unit 5H
42-255-36507Gross McLean Unit 502H

Owners of Gross-McLean Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCGROSS-MCLEAN UNIT W#502HMARATHON OIL EF LLC
2025MARATHON OIL EF LLCGROSS-MCLEAN UNIT W#5HMARATHON OIL EF LLC
2025DAVILA MANUEL G SHELTER TRUSTGROSS-MCLEAN UNIT W#502HMARATHON OIL EF LLC
2025DAVILA MANUEL G SHELTER TRUSTGROSS-MCLEAN UNIT W#5HMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES USA INCGROSS-MCLEAN UNIT W#502HMARATHON OIL EF LLC
2025AMBER HARVEST LLCGROSS-MCLEAN UNIT W#502HMARATHON OIL EF LLC
2025AMBER HARVEST LLCGROSS-MCLEAN UNIT W#5HMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES USA INCGROSS-MCLEAN UNIT W#5HMARATHON OIL EF LLC
Displaying 8 of 39 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Gross-McLean Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
02-10338GROSS-MCLEAN UNITApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025MARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-294906GROSS-MCLEAN UNIT 502HMar 2025MARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-294907GROSS-MCLEAN UNIT 5HMar 2025MARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025ENERFIN AGUA DULCE LPMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025TARGA MIDSTREAM SERVICES LLCMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025DCP OPERATING COMPANY, LPMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025MARATHON OIL EF LLC
02-10338GROSS-MCLEAN UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC