WELL · 42-013-35668 · DISTRICT 1

Retzloff Tom-May Psa B #2H

N

Atascosa County · Eagleville (Eagle Ford-2) field  · Horizontal

Retzloff Tom-May Psa B #2H (API 42-013-35668) is a horizontal well in Atascosa County operated by Marathon Oil EF LLC, completed February 18, 2019.

The RRC has issued one drilling permit, issued December 31, 2018, permitted to 20,000 ft.

Completion filings report 10 formation tops, including Queen City, Reklaw, Bartosh, Carrizo.

Its 2 leases have reported 286K barrels of oil and 391K mcf of gas since February 2019, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

Houston, TX · P-5 Y, filed Aug 4, 2025 · 3,191 permits on file · (800) 332-9449

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarathon Oil EF LLC
Production reportsMarathon Oil EF LLCthrough Apr 2026
Latest permitMarathon Oil EF LLCDec 31, 2018
20,000
total depth, ft
1
permits on file
Dec 31, 2018
last permit issued
Feb 18, 2019
completed
286K
cumulative oil, bbl
391K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2019 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 18, 2019
Shut in
—
Plugged
—

Surface location

28.734500, -98.170444

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Atascosa County.

Lease production

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Retzloff Tom-May Psa B O-1-19815Eagleville (Eagle Ford-1)Marathon Oil EF LLC1286K391KApr 2019 – Jul 2026
Retzloff Tom-May Psa B O-2-11693Eagleville (Eagle Ford-2)Marathon Oil EF LLC100Feb 2019 – Jan 2020

Oil, barrels lease total

Last 12 months 11,750 · prior 12 15,831(-26%)

01K2K3K202420252026

Gas, mcf lease total

Last 12 months 8,887 · prior 12 10,709(-17%)

01K2K202420252026

Chain of custody

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

  1. 1Marathon Oil EF LLCApr 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
846724-99DrillMarathon Oil EF LLCNov 12, 2018Dec 31, 2018Mar 22, 201920,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-19815————
—— O-2-11693————

Formation tops

As filed on W-2/G-1. Subsea from 358 ft elevation.Download CSV →

FormationMD ftSubsea
Queen City3,095-2,737
Reklaw3,457-3,099
Bartosh3,661-3,303
Carrizo4,104-3,746
WilcoxWILCOX - DISPOSAL5,439-5,081
NavarroNAVARRO - H2S8,777-8,419
EscondidoESCONDIDO - H2S, DISPOSAL9,287-8,929
OlmosOLMOS - DISPOSAL9,287-8,929
AnacachoANACACHO - H2S10,702-10,344
Austin ChalkAUSTIN CHALK - H2S, DISPOSAL10,904-10,546
EscondidoESCONDIDO - H2S, DISPOSAL——
OlmosOLMOS - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
11,18218,001Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6255,31512.251,537 S
5.518,1108.753,022 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Oct 31, 2019May 17, 2019Yes
00Apr 11, 2019Mar 8, 2019Yes

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 are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Retzloff Tom-May Psa C42-013-35669

0.0 KM · Marathon Oil EF LLC · Section with this well →

Queen City3,095-2,736
Reklaw3,457-3,098
Bartosh3,661-3,302
Carrizo4,104-3,745
Wilcox5,439-5,080
Navarro8,777-8,418
Olmos9,287-8,928
Anacacho10,712-10,353

10 TOPS · FIRST 8

Retzloff Tom-May Psa A42-013-35667

0.0 KM · Marathon Oil EF LLC · Section with this well →

Queen City3,095-2,738
Reklaw3,457-3,100
Bartosh3,661-3,304
Carrizo4,104-3,747
Wilcox5,439-5,082
Navarro8,777-8,420
Olmos9,287-8,930
Anacacho10,713-10,356

10 TOPS · FIRST 8

Ethridge Unit A42-013-36130

0.0 KM · Marathon Oil EF LLC · Section with this well →

Queen City2,794-2,435
Reklaw3,324-2,965
Carrizo4,152-3,793
Wilcox4,224-3,865
Anacacho10,715-10,356
Austin Chalk10,898-10,539
Eagle Ford11,051-10,692
Edwards—

14 TOPS · FIRST 8

Ethridge Unit A42-013-36131

0.0 KM · Marathon Oil EF LLC · Section with this well →

Cook Mountain1,939-1,580
Queen City2,794-2,435
Reklaw3,324-2,965
Carrizo4,152-3,793
Wilcox4,224-3,865
Anacacho10,734-10,375
Austin Chalk11,101-10,742
Navarro—

11 TOPS · FIRST 8

Retzloff-May-Tom SA142-013-36133

0.1 KM · Marathon Oil EF LLC · Section with this well →

Queen City2,794-2,435
Reklaw3,324-2,965
Carrizo4,152-3,793
Wilcox4,224-3,865
Austin Chalk10,917-10,558
Navarro—
Escondido—
Bartosh—

10 TOPS · FIRST 8

Esse-Retzloff-May-Tom SA142-013-36132

0.1 KM · Marathon Oil EF LLC · Section with this well →

Queen City2,794-2,435
Reklaw3,324-2,965
Carrizo4,152-3,793
Wilcox4,224-3,865
Anacacho10,743-10,384
Austin Chalk10,922-10,563
Olmos—
Navarro—

10 TOPS · FIRST 8

JO Ann Esse Unit E42-297-36492

1.0 KM · Burlington Resources O & G Co LP · Section with this well →

Frio102262
Hockley - Disposal499-135
Jackson865-501
Cook Mountain2,035-1,671
Queen City2,927-2,563
Wilcox4,439-4,075
Austin Chalk10,958-10,594
Eagle Ford11,053-10,689

10 TOPS · FIRST 8

JO Ann Esse Unit H42-297-36491

1.0 KM · Burlington Resources O & G Co LP · Section with this well →

Frio103262
Hockley - Disposal499-134
Jackson866-501
Cook Mountain2,035-1,670
Queen City2,924-2,559
Wilcox4,440-4,075
Austin Chalk10,961-10,596
Eagle Ford11,056-10,691

10 TOPS · FIRST 8

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

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