Gilley Unit

Oil & Gas Property in Karnes County, TX

Property Summary

Key data points for Gilley Unit

CountyKarnes County, TX
OperatorMARATHON OIL EF LLC
Production DatesJun 2011 - Mar 2026
Total Oil Production1,266,438 BBLs
Total Gas Production3,531,859 MCF
Recent Oil Production1,636 BBLs in Feb 2026
Recent Gas Production6,307 MCF in Feb 2026
Wells on Property8

Our Valuation Estimates for Gilley Unit

ShaleAssessment

$43,693 *

MarketMultiple

$277,928 **

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

Based on a decimal interest

Gilley Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for Gilley Unit
from Jun 2011 to Mar 2026

Wells on Gilley Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-255-31757GILLEY UNIT 1HMARATHON OIL EF LLCProducingKarnes County, TX28.835816-97.969280
42-255-32365GILLEY UNIT 2HMARATHON OIL EF LLCProducingKarnes County, TX28.822406-97.963823
42-255-35090GILLEY UNIT 505HMARATHON OIL EF LLCProducingKarnes County, TX28.822416-97.963720
42-255-35091GILLEY UNIT 504HMARATHON OIL EF LLCProducingKarnes County, TX28.822477-97.963539
42-255-35092GILLEY UNIT 5HMARATHON OIL EF LLCProducingKarnes County, TX28.822446-97.963626
42-255-35093GILLEY UNIT 4HMARATHON OIL EF LLCProducingKarnes County, TX28.834831-97.970138
42-255-35094GILLEY UNIT 3HMARATHON OIL EF LLCProducingKarnes County, TX28.834678-97.970074
42-255-35095GILLEY UNIT 503HMARATHON OIL EF LLCProducingKarnes County, TX28.834757-97.970078

Leases included in Gilley Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
02-09805GILLEY UNITMARATHON OIL EF LLCKarnes County, TX
02-294887GILLEY UNIT 504HMARATHON OIL EF LLCKarnes County, TX

Nearby Properties

These are the closest 20 properties to the Gilley Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Adams-Tipton UnitKarnes County, TX3,391 BBLs4,895 MCFMar 2026
Brown-DupnikKarnes County, TX1,662 BBLs3,285 MCFMar 2026
Brysch Jonas-Yosko Borgfeld SaKarnes County, TX1,517 BBLs3,131 MCFMar 2026
Buehring UnitKarnes County, TX3,100 BBLs4,820 MCFMar 2026
Buehring-Gilley PsaKarnes County, TX305 BBLs1,792 MCFMar 2026
Culberson-Hughes UnitKarnes County, TX1,190 BBLs1,471 MCFMar 2026
Culberson-Patteson UnitKarnes County, TX1,149 BBLs2,445 MCFMar 2026
Davenport UnitKarnes County, TX27 BBLs21 MCFMar 2026
Fransen UnitKarnes County, TX5,635 BBLs19,189 MCFMar 2026
Fransen-Direct Assets SaKarnes County, TX14,805 BBLs54,994 MCFMar 2026
Gross-McLean UnitKarnes County, TX313 BBLs523 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
Rogers-Foester UnitKarnes County, TX1,660 BBLs4,316 MCFMar 2026

Frac'ing activity on Gilley Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-255-32365Gilley 2H
42-255-35090Gilley Unit 505H
42-255-35091Gilley Unit 504H
42-255-35092Gilley Unit 5H
42-255-35093Gilley 4H
42-255-35094Gilley 3H
42-255-35095Gilley 503H

Owners of Gilley Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025MARATHON OIL EF LLCGILLEY UNIT W#504HMARATHON OIL EF LLC
2025KOLKHORST KATHERINE HAVERLAHGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES USA INCGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025AMBER HARVEST LLCGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025WALLECK GORDON R & TINAGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025JUNGMAN THOMAS ANDREWGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
2025GINTHER JANGILLEY UNIT W#1H-5H,503H,505HMARATHON OIL EF LLC
Displaying 8 of 102 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on Gilley Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
02-09805GILLEY UNITMar 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITFeb 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITFeb 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HFeb 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HJan 2026DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY