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 - Jan 2026
Total Oil Production1,263,429 BBLs
Total Gas Production3,522,387 MCF
Recent Oil Production1,616 BBLs in Dec 2025
Recent Gas Production8,040 MCF in Dec 2025
Wells on Property8

Our Valuation Estimates for Gilley Unit

ShaleAssessment

$44,783 *

MarketMultiple

$265,652 **

* 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 Jan 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 LLCShut InKarnes 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, TX5,956 BBLs5,513 MCFJan 2026
B. Dupnik A-H. Brown PsaKarnes County, TX1,757 BBLs1,440 MCFJan 2026
Brown-DupnikKarnes County, TX5,018 BBLs9,540 MCFJan 2026
Brysch Jonas-Yosko Borgfeld SaKarnes County, TX2,234 BBLs2,931 MCFJan 2026
Buehring UnitKarnes County, TX2,310 BBLs4,212 MCFJan 2026
Culberson-Hughes UnitKarnes County, TX1,592 BBLs2,956 MCFJan 2026
Culberson-Patteson UnitKarnes County, TX2,367 BBLs5,239 MCFJan 2026
Davenport UnitKarnes County, TX0 BBLs0 MCFJan 2026
Fransen UnitKarnes County, TX8,343 BBLs21,136 MCFFeb 2026
Fransen-Direct Assets SaKarnes County, TX19,116 BBLs56,788 MCFFeb 2026
Gross-McLean UnitKarnes County, TX1,091 BBLs1,334 MCFJan 2026
Gross-RobertKarnes County, TX4,013 BBLs12,429 MCFJan 2026
Holland-Brown UnitKarnes County, TX2,994 BBLs1,853 MCFJan 2026
Jordan UnitKarnes County, TX2,566 BBLs2,897 MCFJan 2026
Kimble-GilleyKarnes County, TX3,893 BBLs10,452 MCFJan 2026
Luna UnitKarnes County, TX4,149 BBLs13,526 MCFJan 2026
Luna-May Unit PsaKarnes County, TX473 BBLs102 MCFJan 2026
May Unit 1Karnes County, TX8,605 BBLs30,449 MCFJan 2026
Murphy-Sinclair UnitKarnes County, TX4,853 BBLs30,291 MCFJan 2026
Rogers-Foester UnitKarnes County, TX768 BBLs12,859 MCFJan 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 UNITDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITNov 2025ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITNov 2025DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HNov 2025DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITOct 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
02-09805GILLEY UNITOct 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITOct 2025ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITOct 2025DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITOct 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025ENERFIN AGUA DULCE LPCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025TARGA MIDSTREAM SERVICES LLCCONOCOPHILLIPS COMPANY
02-294887GILLEY UNIT 504HOct 2025DCP OPERATING COMPANY, LPCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITSep 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
02-09805GILLEY UNITSep 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY