May Girls-Chapman Unit

Oil & Gas Property in Atascosa County, TX

  2. Texas
  3. Atascosa County, TX
  4. Oil & Gas Properties in Atascosa County, TX
  5. May Girls-Chapman Unit Oil & Gas Property

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Property Summary

Key data points for May Girls-Chapman Unit

CountyAtascosa County, TX
OperatorMARATHON OIL EF LLC
Production DatesNov 2013 - Dec 2025
Total Oil Production474,028 BBLs
Total Gas Production729,941 MCF
Recent Oil Production13 BBLs in Dec 2025
Recent Gas Production1 MCF in Dec 2025
Wells on Property4

Our Valuation Estimates for May Girls-Chapman Unit

ShaleAssessment™

$42,316 *

MarketMultiple™

$1,022 **

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

Based on a decimal interest

May Girls-Chapman Unit Production Graph

Aggregated production of all wells and leases associated with this property
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to oil and gas production for May Girls-Chapman Unit
from Nov 2013 to Dec 2025

Wells on May Girls-Chapman Unit

API #Well NameOperatorStatusCountyEst. Daily Oil Prod.Est. Daily Gas Prod.Est. Daily Water Prod.LatitudeLongitude
42-013-34637MAY GIRLS-CHAPMAN UNIT 1HMARATHON OIL EF LLCProducingAtascosa County, TX28.709465-98.221594
42-013-34642MAY GIRLS-CHAPMAN UNIT 2HMARATHON OIL EF LLCProducingAtascosa County, TX28.709536-98.221408
42-013-34643MAY GIRLS-CHAPMAN UNIT 3HMARATHON OIL EF LLCShut InAtascosa County, TX28.709580-98.221348
42-013-34665MAY GIRLS-CHAPMAN UNIT 4HMARATHON OIL EF LLCShut InAtascosa County, TX28.709624-98.221288

Leases included in May Girls-Chapman Unit

Lease #Lease NameOperatorCountyMonthly Oil Prod.Monthly Gas Prod.
02-10641MAY GIRLS-CHAPMAN UNITMARATHON OIL EF LLCAtascosa County, TX

Nearby Properties

These are the closest 20 properties to the May Girls-Chapman Unit property.

Property NameLocationOil Prod.Gas Prod.Prod. Period
Anthony East Unit 1Atascosa County, TX381 BBLs115 MCFJan 2026
Anthony West UnitAtascosa County, TX358 BBLs144 MCFJan 2026
BLT UnitAtascosa County, TX299 BBLs74 MCFJan 2026
Bros UnitAtascosa County, TX1,895 BBLs9,738 MCFJan 2026
Henke UnitAtascosa County, TX3,265 BBLs2,994 MCFJan 2026
Henke-Wilhelm UnitAtascosa County, TX2,870 BBLs1,848 MCFJan 2026
John Jr UnitAtascosa County, TX330 BBLs276 MCFJan 2026
JTN UnitAtascosa County, TX664 BBLs27 MCFJan 2026
May GirlsAtascosa County, TX4,423 BBLs4,335 MCFJan 2026
May-ChapmanAtascosa County, TX1,535 BBLs580 MCFJan 2026
Pat UnitAtascosa County, TX730 BBLs667 MCFJan 2026
R May A-May Girls Chapman Sa2Atascosa County, TX17,815 BBLs30,352 MCFJan 2026
R May A-Schroeder Chapman Sa1Atascosa County, TX18,364 BBLs32,681 MCFJan 2026
R. MayAtascosa County, TX18,689 BBLs18,209 MCFJan 2026
Retzloff-Chapman UnitLive Oak County, TX434 BBLs493 MCFJan 2026
Schroeder-Chapman UnitAtascosa County, TX2,572 BBLs2,301 MCFJan 2026
Sharon Fordyce 01Live Oak County, TX0 BBLs0 MCFAug 2025
Tom-Smith Unit AAtascosa County, TX954 BBLs2,999 MCFJan 2026
W. Smith B-A-MCS PsaAtascosa County, TX680 BBLs2,222 MCFDec 2025
Wilhelm-Smith UnitAtascosa County, TX1,714 BBLs636 MCFJan 2026

Companies in the Area

These are the closest 20 companies operating near the May Girls-Chapman Unit property.

Company Name
Aggietech Oil, LTD.
Burlington Resources Oil & Gas Company LP
Chevron USA Inc
Enserch Exploration Inc
EOG Resources Inc
Magnolia Oil & Gas Operating LLC
Marathon Oil Ef LLC
Miller, W. C. Operating Company
Murphy Expl. & Prod. Co. - USA
Newfield Exploration Company
Pioneer Natural Res. USA, Inc.
Rollert Co., Inc., The
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 May Girls-Chapman Unit

API #Well NameStart DateEnd DateVertical DepthTotal Water Volume
42-013-34637May Girls-Chapman 1H
42-013-34642May Girls Chapman 2H
42-013-34643May Girls Chapman 3H
42-013-34665May Girls Chapman 4H

Owners of May Girls-Chapman Unit

Royalty Ownership data is obtained from public records
YearOwnerProperty NameOperatorPercentageInterest TypeAppraisal ValueLegal Desciption
2025MARATHON OIL EF LLCMAY GIRLS-CHAPMAN UNITMARATHON OIL E
2025ESSE IVAN LYNMAY GIRLS-CHAPMAN UNITMARATHON OIL E
2025MARATHON OIL EF LLCMAY GIRLS-CHAPMAN UNITMARATHON OIL EF LLC
2025CHAPMAN HUGH T FAMILY LIMITEDMAY GIRLS-CHAPMAN UNITMARATHON OIL E
2025ESSE IVAN LYNMAY GIRLS-CHAPMAN UNITMARATHON OIL EF LLC
2025FREEHOLD ROYALTIES (USA) INCMAY GIRLS-CHAPMAN UNITMARATHON OIL E
2025AMBER HARVEST LLCMAY GIRLS-CHAPMAN UNITMARATHON OIL E
2025R MAY OIL & GAS COMPANY LTDMAY GIRLS-CHAPMAN UNITMARATHON OIL E
Displaying 8 of 117 Owners   --   Full Ownership Data Available for Subscribers Only