WELL · 42-391-30399 · DISTRICT 2

O Brien J.M. -C- #C 6

N

Refugio County · Greta Deep (5660 Seg. N) field  · Vertical

O Brien J.M. -C- #C 6 (API 42-391-30399) is a well in Refugio County operated by Acock/Anaqua Operating CO. LP, completed September 13, 1989.

The RRC has issued one drilling permit, issued October 27, 1989, permitted to 6,650 ft.

It was permitted by Chilton Energy and has since transferred to Acock/Anaqua Operating CO. LP on the wellbore schedule.

Completion filings report one formation top, including Greta.

No lease production has been reported under this well’s leases.

Operator of record

Acock/Anaqua Operating Co. LP

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

Corpus Christ, TX · P-5 Y, filed Jan 4, 2026 · 288 permits on file · (361) 876-5691

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleAcock/Anaqua Operating Co. LP
Production reportsnone
Latest permitChilton EnergyOct 27, 1989

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

6,650
total depth, ft
1
permits on file
Oct 27, 1989
last permit issued
Sep 13, 1989
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jan 2022

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Sep 13, 1989
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 6 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Obrien, J. M., -C- O-2-3962Greta (4400)Greta Operating Company LLC500Jan 1993 – Jan 2022
O'Brien, J.M. -C- G-2-132252Greta, Deep (5660, Seg. N)Acock/Anaqua Operating Co., LP100Jan 1993 – Feb 2020

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
364327-99RecompletionChilton EnergySep 25, 1989Oct 27, 1989—6,650

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-2-132252————
—— O-2-3962————

Formation tops

As filed on W-2/G-1. Subsea from 12 ft elevation.Download CSV →

FormationMD ftSubsea
GretaGRETA (4400)4,411-4,399
GretaGRETA (F-3)5,184-5,172
GretaGRETA (5760)5,743-5,731

Perforations

Perforated and open-hole intervals.

FromToType
4,4114,415Perforated
5,6765,684Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,31612.25900 S
9.6251,316—900 S
5.56,356—1,200 S
5.56,358—1,200 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
00Dec 19, 1989Oct 2, 1989—
00Nov 23, 1989——
00Jan 12, 1984Aug 25, 1975—

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/39130399, documented in the API reference.