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 - Oct 2025
Total Oil Production316,154 BBLs
Total Gas Production373,056 MCF
Recent Oil Production842 BBLs in Sep 2025
Recent Gas Production1,566 MCF in Sep 2025
Wells on Property1

Our Valuation Estimates for R. May B-Guajillo Unit

ShaleAssessment

$33,802 *

MarketMultiple

$86,213 **

* 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 Oct 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, TX571 BBLs1,454 MCFOct 2025
Buck UnitLive Oak County, TX1,733 BBLs3,935 MCFOct 2025
Cheatham-New 01Live Oak County, TX0 BBLs0 MCFAug 2025
Georgia Buck 01Live Oak County, TX251 BBLs12 MCFOct 2025
GuajilloLive Oak County, TX30,833 BBLs60,028 MCFOct 2025
Guajillo UnitAtascosa County, TX28,842 BBLs39,753 MCFOct 2025
H T Chapman 0Live Oak County, TX2,270 BBLs5,559 MCFOct 2025
Heard BowerAtascosa County, TX4,160 BBLs5,768 MCFOct 2025
Heard Bower CentralAtascosa County, TX991 BBLs512 MCFOct 2025
Jack Meeks 01Live Oak County, TX0 BBLs0 MCFOct 2025
James Keith Esse 01Live Oak County, TX3,312 BBLs12,064 MCFOct 2025
Justin Tom 01Atascosa County, TX4,787 BBLs2,032 MCFOct 2025
KoerthLive Oak County, TX1,762 BBLs5,842 MCFOct 2025
May-ChapmanAtascosa County, TX2,126 BBLs3,658 MCFOct 2025
R May A-Schroeder Chapman Sa1Atascosa County, TX17,068 BBLs16,995 MCFOct 2025
R. MayAtascosa County, TX18,916 BBLs13,128 MCFOct 2025
Retzloff UnitLive Oak County, TX5,193 BBLs13,550 MCFOct 2025
Schroeder-Chapman UnitAtascosa County, TX1,342 BBLs721 MCFOct 2025
Sharon Fordyce 01Live Oak County, TX0 BBLs0 MCFAug 2025
WhitsettLive Oak County, TX51 BBLs87 MCFOct 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