R. May B-Guajillo Unit

Oil & Gas Property in Atascosa County, TX

Property Summary

Key data points for R. May B-Guajillo Unit

CountyAtascosa County, TX
OperatorMARATHON OIL EF LLC
Production DatesJun 2014 - Sep 2025
Total Oil Production315,435 BBLs
Total Gas Production371,820 MCF
Recent Oil Production861 BBLs in Aug 2025
Recent Gas Production1,813 MCF in Aug 2025
Wells on Property1

Our Valuation Estimates for R. May B-Guajillo Unit

ShaleAssessment

$34,284 *

MarketMultiple

$85,523 **

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

Based on a decimal interest

R. May B-Guajillo Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for R. May B-Guajillo Unit
from Jun 2014 to Sep 2025

Wells on R. May B-Guajillo Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34919R. MAY B-GUAJILLO UNIT 1HMARATHON OIL EF LLCProducingAtascosa County, TX28.677707-98.249284

Leases included in R. May B-Guajillo Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
01-17935R. MAY B-GUAJILLO UNITMARATHON OIL EF LLCAtascosa County, TX

Nearby Properties

These are the closest 20 properties to the R. May B-Guajillo Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Bensmiller Unit ALive Oak County, TX248 BBLs1,194 MCFSep 2025
Buck UnitLive Oak County, TX2,171 BBLs3,956 MCFSep 2025
Cheatham-New 01Live Oak County, TX9 BBLs7 MCFAug 2025
Georgia Buck 01Live Oak County, TX374 BBLs247 MCFSep 2025
GuajilloLive Oak County, TX30,891 BBLs66,494 MCFSep 2025
Guajillo UnitAtascosa County, TX30,915 BBLs48,853 MCFSep 2025
H T Chapman 0Live Oak County, TX7,592 BBLs23,450 MCFSep 2025
Heard BowerAtascosa County, TX5,454 BBLs5,286 MCFSep 2025
Heard Bower CentralAtascosa County, TX1,448 BBLs705 MCFSep 2025
Jack Meeks 01Live Oak County, TX142 BBLs26 MCFAug 2025
James Keith Esse 01Live Oak County, TX6,653 BBLs16,567 MCFSep 2025
Justin Tom 01Atascosa County, TX5,373 BBLs1,951 MCFSep 2025
KoerthLive Oak County, TX6,663 BBLs20,464 MCFSep 2025
May-ChapmanAtascosa County, TX2,438 BBLs3,076 MCFSep 2025
R May A-Schroeder Chapman Sa1Atascosa County, TX25,314 BBLs23,195 MCFSep 2025
R. MayAtascosa County, TX27,251 BBLs20,415 MCFSep 2025
Retzloff UnitLive Oak County, TX4,341 BBLs6,192 MCFSep 2025
Schroeder-Chapman UnitAtascosa County, TX1,932 BBLs718 MCFSep 2025
Sharon Fordyce 01Live Oak County, TX46 BBLs17 MCFAug 2025
WhitsettLive Oak County, TX204 BBLs274 MCFSep 2025

Frac'ing activity on R. May B-Guajillo Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34919R May B Guajillo 1H

Owners of R. May B-Guajillo Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025R MAY OIL & GAS COMPANY LTDR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025EMORY PEAK MINERALS SUB IV LLCR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025HARRISON DANIEL J IIIR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025AMBER HARVEST LLCR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025LAFREY PHYLLIS MAYR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025RP MAY LTDR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
2025MAY ROGER PHILIPR MAY B GUAJILLO UNIT 1HMARATHON OIL EF LLC
Displaying 8 of 16 Owners   --   Full Ownership Data Available for Subscribers Only

Oil & Gas Sales on R. May B-Guajillo Unit

Lease #Lease NameReporting PeriodProductVolumeValueGross PricePurchaserProducer
Lease #Lease NameReporting PeriodProductOil VolumeOil ValueCalculated Oil PricePurchaserProducer
01-17935R. MAY B-GUAJILLO UNITApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMar 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITFeb 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITFeb 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITJan 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITJan 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITDec 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITDec 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITDec 2024ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITNov 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITNov 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITNov 2024ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITOct 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITOct 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITOct 2024ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITSep 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITSep 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITSep 2024ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITAug 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITAug 2024MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITAug 2024ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC