WELL · 42-287-32637 · DISTRICT 3

Rost-Mann Co-OP Unit #1

Y

Lee County · Giddings (Austin Chalk-3) field · Producing  · Horizontal

Rost-Mann CO-OP Unit #1 (API 42-287-32637) is a horizontal well in Lee County operated by Magnolia Oil & Gas Operating LLC, completed September 24, 2014 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued June 19, 2014, permitted to 9,500 ft.

It was permitted by Enervest Operating, L.L.C. and has since transferred to Magnolia Oil & Gas Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Pecan Gap, Austin Chalk, Wilcox.

Its lease has reported 63.1K barrels of oil and 902K mcf of gas since August 2014, last reporting in July 2026.

Operator of record

Magnolia Oil & Gas Operating LLC

Permitted by Enervest Operating, L.L.C.; the EWA schedule now lists a different operator.

Based in
Houston, TX
P-5 status
Active – Extension (X)
P-5 last filed
May 6, 2026
Permits on file
615
Phone
(713) 842-9050

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMagnolia Oil & Gas Operating LLC
Production reportsMagnolia Oil & Gas Operating LLCthrough Apr 2026
Latest permitEnervest Operating, L.L.C.Jun 19, 2014

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

9,500
total depth, ft
1
permits on file
Jun 19, 2014
last permit issued
Sep 24, 2014
completed
63.1K
cumulative oil, bbl
902K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Sep 24, 2014
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
Rost-Mann Co-OP Unit O-3-26749Giddings (Austin Chalk-3)Magnolia Oil & Gas Operating LLC163.1K902KAug 2014 – Jul 2026

Gas, mcf lease total

Last 12 months 27,300 · prior 12 28,716(-5%)

02K4K202420252026

Oil, barrels lease total

Last 12 months 863 · prior 12 1,051(-18%)

0100200300202420252026

Chain of custody

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

  1. 1Enervest Operating, L.L.C.Aug 2014 → Jul 2018
  2. 2Magnolia Oil & Gas Operating LLCAug 2018 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
782791-99DrillEnervest Operating, L.L.C.Mar 21, 2014Jun 19, 2014Jul 5, 20149,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-3-26749————

Formation tops

As filed on W-2/G-1. Subsea from 310 ft elevation.Download CSV →

FormationMD ftSubsea
Pecan Gap7,583-7,273
Austin Chalk8,136-7,826
WilcoxWILCOX - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
8,18110,256Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6253,98812.251,326 S
78,1818.758,181 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
00Jul 29, 2015Nov 13, 2014Yes

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/28732637, documented in the API reference.