R. May B-Guajillo Unit

Oil & Gas Property in Atascosa County, TX

  2. Texas
  3. Atascosa County, TX
  4. Oil & Gas Properties in Atascosa County, TX
  5. R. May B-Guajillo Unit Oil & Gas Property

Map of Wells Full Screen Map 3-D Map

Property Summary

Key data points for R. May B-Guajillo Unit

CountyAtascosa County, TX
OperatorMARATHON OIL EF LLC
Production DatesJun 2014 - Jan 2026
Total Oil Production316,945 BBLs
Total Gas Production373,419 MCF
Recent Oil Production579 BBLs in Dec 2025
Recent Gas Production293 MCF in Dec 2025
Wells on Property1

Our Valuation Estimates for R. May B-Guajillo Unit

ShaleAssessment™

$32,443 *

MarketMultiple™

$75,255 **

* 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
Subscribe for Full Access Subscribe now to gain immediate access
to oil and gas production for R. May B-Guajillo Unit
from Jun 2014 to Jan 2026

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, TX148 BBLs749 MCFJan 2026
Buck UnitLive Oak County, TX1,276 BBLs3,553 MCFJan 2026
Cheatham-New 01Live Oak County, TX1,450 BBLs83 MCFJan 2026
Georgia Buck 01Live Oak County, TX598 BBLs276 MCFJan 2026
GuajilloLive Oak County, TX24,363 BBLs44,953 MCFJan 2026
Guajillo UnitAtascosa County, TX30,588 BBLs37,586 MCFJan 2026
H T Chapman 0Live Oak County, TX9,423 BBLs22,996 MCFJan 2026
Heard BowerAtascosa County, TX1,881 BBLs5,411 MCFJan 2026
Heard Bower CentralAtascosa County, TX1,049 BBLs292 MCFDec 2025
Jack Meeks 01Live Oak County, TX56,530 BBLs82,542 MCFJan 2026
James Keith Esse 01Live Oak County, TX6,458 BBLs12,629 MCFJan 2026
Justin Tom 01Atascosa County, TX19,077 BBLs9,618 MCFJan 2026
KoerthLive Oak County, TX8,553 BBLs17,557 MCFJan 2026
May-ChapmanAtascosa County, TX1,535 BBLs580 MCFJan 2026
Meeks FordyceLive Oak County, TX98,200 BBLs126,194 MCFJan 2026
R. MayAtascosa County, TX18,689 BBLs18,209 MCFJan 2026
Retzloff UnitLive Oak County, TX8,243 BBLs14,471 MCFJan 2026
Schroeder-Chapman UnitAtascosa County, TX2,572 BBLs2,301 MCFJan 2026
Sharon Fordyce 01Live Oak County, TX0 BBLs0 MCFAug 2025
WhitsettLive Oak County, TX10 BBLs27 MCFDec 2025

Companies in the Area

These are the closest 15 companies operating near the R. May B-Guajillo Unit property.

Company Name
Aggietech Oil, LTD.
Burlington Resources Oil & Gas Company LP
Enserch Exploration Inc
Marathon Oil Ef LLC
Murphy Expl. & Prod. Co. - USA
Paloma Resources, LLC
Pioneer Natural Res. USA, Inc.
Sea Eagle Ford, LLC
Silverbow Resources Oper, LLC
Teal Operating, LLC
Tidal Petroleum, Inc.
Venus Oil Company
Verdun Oil & Gas LLC
Warwick-Artemis, LLC
XTO Energy Inc.

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 UNITDec 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITNov 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITNov 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITOct 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITOct 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITSep 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITSep 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITSep 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITAug 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITAug 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITAug 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITJul 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITJul 2025CONOCOPHILLIPS COMPANYCONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITJul 2025ETC TEXAS PIPELINE, LTD.CONOCOPHILLIPS COMPANY
01-17935R. MAY B-GUAJILLO UNITJun 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITJun 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITJun 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMay 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMay 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMay 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITApr 2025MARATHON OIL EF LLCMARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITApr 2025ETC TEXAS PIPELINE, LTD.MARATHON OIL EF LLC
01-17935R. MAY B-GUAJILLO UNITMar 2025MARATHON OIL EF LLCMARATHON OIL EF LLC