WELL · 42-013-34338 · DISTRICT 1

Chapman Rothe Unit #1H

N

Atascosa County  · Horizontal

Chapman Rothe Unit #1H (API 42-013-34338) is a permitted horizontal well in Atascosa County filed by Marathon Oil EF LLC; no completion report is on file yet.

The RRC has issued one drilling permit (amended once), issued February 9, 2011, permitted to 13,500 ft.

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

Its 2 leases have reported 872K barrels of oil and 1.35M mcf of gas since May 2011, last reporting in July 2026. The leases carry 7 wells, so these are lease totals, not this well alone.

Operator of record

Marathon Oil EF LLC

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 schedulenone
Production reportsMarathon Oil EF LLCthrough Apr 2026
Latest permitHilcorp Energy CompanyFeb 9, 2011
13,500
total depth, ft
2
permits on file
Feb 9, 2011
last permit issued
—
completed
872K
cumulative oil, bbl
1.35M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
—
Shut in
—
Plugged
—

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 2 leases this well is completed on; they carry 7 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Chapman Rothe Unit G-1-289607Eagleville (Eagle Ford-1)Marathon Oil EF LLC10150KNov 2011 – Jul 2026
Chapman Rothe Unit O-1-15604Eagleville (Eagle Ford-1)Marathon Oil EF LLC6872K1.2MMay 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 14,915 · prior 12 41,622(-64%)

02K4K6K202420252026

Gas, mcf lease total

Last 12 months 9,595 · prior 12 18,315(-48%)

02K4K202420252026

Chain of custody

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

  1. 1Hilcorp Energy CompanyMay 2011 → Oct 2011
  2. 2Marathon Oil EF LLCNov 2011 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
709513-98DrillMarathon Oil EF LLCFeb 27, 2013Feb 9, 2011Mar 15, 201113,500
709513-99DrillHilcorp Energy CompanyJan 31, 2011Feb 9, 2011Mar 15, 201113,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-1-289607————
—— O-1-15604————

Formation tops

As filed on W-2/G-1. Subsea from 417 ft elevation.Download CSV →

FormationMD ftSubsea
Anacacho10,380-9,963
Austin Chalk10,512-10,095
Eagle Ford10,630-10,213
Buda10,842-10,425

Perforations

Perforated and open-hole intervals.

FromToType
10,87015,406Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
10.755,13313.51,970 S
5.515,5028.52,170 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
00Aug 7, 2020May 19, 2020—
00Mar 8, 2012Nov 20, 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 are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

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/01334338, documented in the API reference.