Gross-McLean Unit

Oil & Gas Property in Karnes County, TX

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

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Property Summary

Key data points for Gross-McLean Unit

CountyKarnes County, TX
OperatorMARATHON OIL EF LLC
Production DatesNov 2012 - Mar 2026
Total Oil Production1,139,037 BBLs
Total Gas Production3,277,821 MCF
Recent Oil Production313 BBLs in Feb 2026
Recent Gas Production523 MCF in Feb 2026
Wells on Property6

Our Valuation Estimates for Gross-McLean Unit

ShaleAssessment™

$39,861 *

MarketMultiple™

$94,607 **

* 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 Mar 2026

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, TX758 BBLs900 MCFMar 2026
Brown-DupnikKarnes County, TX1,662 BBLs3,285 MCFMar 2026
Buehring UnitKarnes County, TX3,100 BBLs4,820 MCFMar 2026
Buehring-Gilley PsaKarnes County, TX305 BBLs1,792 MCFMar 2026
Davenport UnitKarnes County, TX27 BBLs21 MCFMar 2026
Fransen UnitKarnes County, TX5,635 BBLs19,189 MCFApr 2026
Fransen-Direct Assets SaKarnes County, TX14,805 BBLs54,994 MCFApr 2026
Gilley UnitKarnes County, TX1,636 BBLs6,307 MCFMar 2026
Gross-RobertKarnes County, TX2,832 BBLs12,309 MCFMar 2026
Holland-Brown UnitKarnes County, TX4,046 BBLs6,212 MCFMar 2026
Jordan UnitKarnes County, TX1,341 BBLs2,128 MCFMar 2026
Jordan-Buehring Unit SaKarnes County, TX650 BBLs1,330 MCFMar 2026
Kimble-GilleyKarnes County, TX3,160 BBLs9,688 MCFMar 2026
Luna UnitKarnes County, TX4,319 BBLs17,854 MCFMar 2026
Luna-May Unit PsaKarnes County, TX806 BBLs81 MCFMar 2026
May Unit 1Karnes County, TX3,296 BBLs16,276 MCFMar 2026
Pfeifer UnitKarnes County, TX288 BBLs306 MCFFeb 2026
Pfeifer-BellKarnes County, TX4,222 BBLs9,799 MCFMar 2026
Pfeifer-Whitley Mejor SaKarnes County, TX1,653 BBLs5,810 MCFMar 2026
Robert Bowman UnitKarnes County, TX1,976 BBLs4,399 MCFMar 2026

Companies in the Area

These are the closest 20 companies operating near the Gross-McLean Unit property.

Company Name
Burlington Resources Oil & Gas Company LP
Caturus Energy, LLC
Dale Operating Company
Devon Energy Production Company, L.P.
Encana Oil & Gas (USA) Inc.
EOG Resources Inc
Francisco Creek Operating, Inc.
Hawthorn Energy Partners, LLC
Hilcorp Energy Company
Marathon Oil Ef LLC
Miller, W. C. Operating Company
North American Royalties, Inc.
Ovintiv USA Inc.
Plains Exploration & Prod. Co.
Repsol Oil & Gas USA, LLC
Rickaway Energy, Corp.
Statoil Texas Onshore Prop LLC
TBM Catarina, LLC
Texas Crude Energy, Inc.
Verdun Oil & Gas LLC

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
2025FREEHOLD ROYALTIES USA INCGROSS-MCLEAN UNIT W#5HMARATHON OIL EF LLC
2025AMBER HARVEST LLCGROSS-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 UNITMar 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITFeb 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITFeb 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HFeb 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294907GROSS-MCLEAN UNIT 5HJan 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-10338GROSS-MCLEAN UNITDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HDec 2025ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294906GROSS-MCLEAN UNIT 502HDec 2025TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY