WELL · 42-371-34168 · DISTRICT 8

Brown & Thorp Waterflood Unit #8

N

Pecos County · Brown & Thorp East (Tubb) field  · Vertical

Brown & Thorp Waterflood Unit #8 (API 42-371-34168) is a well in Pecos County operated by Greenstone Energy LLC, completed March 8, 1983.

The RRC has issued one drilling permit, issued January 21, 1983, permitted to 3,300 ft.

It was permitted by Hcw Exploration, Inc. and has since transferred to Greenstone Energy LLC on the wellbore schedule.

Completion filings report 5 formation tops, including Yates, Queen, San Andres, Glorieta.

Its 2 leases have reported 1.06M barrels of oil and 59 mcf of gas since January 1993, last reporting in July 2026. The leases carry 60 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 78K barrels injected in the 12 months reported through May 2025.

Operator of record

Greenstone Energy LLC

Permitted by HCW Exploration, Inc.; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Aug 4, 2025 · 4 permits on file · (214) 770-1836

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleGreenstone Energy LLC
Production reportsGreenstone Energy, LLCthrough Mar 2026
Latest permitHCW Exploration, Inc.Jan 21, 1983

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

3,300
total depth, ft
1
permits on file
Jan 21, 1983
last permit issued
Mar 8, 1983
completed
1.06M
cumulative oil, bbl
59
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Mar 8, 1983
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 60 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Brown & Thorp Waterflood Unit O-10-32500Brown & Thorp, East (Tubb)Greenstone Energy, LLC601.06M59Jan 1993 – Jul 2026
— O-10-26345——000—

Oil, barrels lease total

Last 12 months 2,152 · prior 12 4,007(-46%)

05001K202420252026

Chain of custody

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

  1. 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
  2. 2Parker & Parsley Development L.PMar 1995 → Aug 1997
  3. 3Pioneer Natural Res. USA, Inc.Sep 1997 → Nov 1997
  4. 4Titan Resources I, Inc.Dec 1997 → Oct 1998
  5. 5GRB Properties, Inc.Nov 1998 → May 1999
  6. 6Pharaoh Oil & Gas, Inc.Jun 1999 → Jul 2007
  7. 7Sterling Energy Resources, Inc.Aug 2007 → May 2010
  8. 8Coronado Minerals, LLCJun 2010 → Oct 2012
  9. 9Aspen Operating Company, L.L.C.Nov 2012 → Nov 2012
  10. 10Trace Operating, LLCDec 2012 → Jun 2018
  11. 11Apv McCamey LLCJul 2018 → Aug 2020
  12. 12Greenstone Energy, LLCSep 2020 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
183807-99DrillHCW Exploration, Inc.Jan 21, 1983Jan 21, 1983—3,300

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-10-26345————
—— O-10-32500————
—— O-10-32500————

Formation tops

As filed on W-2/G-1. Subsea from 2,321 ft elevation.Download CSV →

FormationMD ftSubsea
Yates8221,499
Queen1,422899
Queen1,442879
San Andres1,774547
GlorietaGLORIETTA2,340-19
Clear ForkCLEARFORK2,496-175
Clear ForkLOWER CLEARFORK3,031-710

Perforations

Perforated and open-hole intervals.

FromToType
2,5483,132Perforated
2,9363,101Perforated
3,0233,104Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62566111300 S
3.53,1244.5180 S
2.3753,140——
4.53,2007.8751,125 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 8, 2015Oct 1, 2015—
00Aug 20, 1991Jun 12, 1991—
00Jul 31, 1991Mar 21, 1983—
00Mar 19, 1990Mar 21, 1983—
00Feb 7, 1990——
00Jan 12, 1984Mar 21, 1983—

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) and the University Lands library. then paste it into their search.

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

78K
bbl, last 12 reported months
1.57M
bbl, all reported
May 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000074213H-1 InjectionActive1,2002,0352,936–3,101

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 78,000 · prior 12 33,000(+136%)

05K10K20242025

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/37134168, documented in the API reference.