TEXAS · WELLS · ATASCOSA COUNTY · DEATLEY-MAY UNIT B LEASE · API 42-013-34373 · DISTRICT 01

Deatley-May Unit B #1H

Y

Atascosa County · Eagleville (Eagle Ford-1) field · Producing  · Horizontal

Fields on the latest permit · any of 2
Eagleville (Eagle Ford-1) · Sugarkane (Eagle Ford)
Not one formation; the well must be completed in one of them, and no target formation is stated.

Deatley-May Unit B #1H (API 42-013-34373) is a horizontal well in Atascosa County operated by Marathon Oil EF LLC, completed August 15, 2020 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued May 25, 2011, permitted to 11,178 ft.

It was permitted by Hilcorp Energy Company and has since transferred to Marathon Oil EF LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Anacacho, Anacho, Austin Chalk, Eagle Ford.

Its lease has reported 170K barrels of oil and 269K mcf of gas since August 2011, last reporting volume in July 2024.

Operator of record

Marathon Oil EF LLC

Permitted by Hilcorp Energy Company; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active (A)
P-5 last filed
Sep 26, 2025
Permits on file
3,191
Phone
(832) 486-2737

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarathon Oil EF LLC
Production reportsMarathon Oil EF LLCthrough Jul 2024
Latest permitHilcorp Energy CompanyMay 25, 2011

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

11,178
total depth, ft
1
permits on file
May 25, 2011
last permit issued
Aug 15, 2020
completed
170K
cumulative oil, bbl
269K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2024

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Aug 15, 2020
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active – Extension (X)

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Deatley-May Unit B O-1-15681Eagleville (Eagle Ford-1)Marathon Oil EF LLC1170K269KAug 2011 – Jul 2024

Oil, barrels lease total

Last 12 months 0 · prior 12 581(-100%)

05001K202420252026

Gas, mcf lease total

Last 12 months 0 · prior 12 8,528(-100%)

05K10K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Marathon Oil EF LLCNov 2011 → Jul 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
717061-99DrillHilcorp Energy CompanyMay 24, 2011May 25, 2011Jul 8, 201113,500

Completions

CompletedLeaseFieldOperatorStatusDepth
Aug 15, 2020Deatley-May Unit B O-1-15681Eagleville (Eagle Ford-1)Marathon Oil EF LLCProducing11,178

Formation tops

As filed on W-2/G-1. Subsea from 415 ft elevation.Download CSV →

FormationMD ftSubsea
Anacacho10,540-10,125
Anacho10,540-10,125
Austin Chalk10,690-10,275
Eagle Ford10,810-10,395

Perforations

Perforated and open-hole intervals.

FromToType
11,17216,172Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.755,49813.51,590 S
5.516,3218.52,290 S

Completion filings

W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Sep 17, 2020Sep 17, 2020—
00Apr 11, 2012Nov 4, 2011Yes

The source documents

Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.

Find logs withinmiles of this well:List →Map →

About this data

Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.

New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease

Developers: this page as JSON is GET /v1/data/wells/01334373, documented in the API reference.