TEXAS · WELLS · PECOS COUNTY · GRAND CLEARFORK UNIT LEASE · API 42-371-36447 · DISTRICT 7B

Grand Clearfork Unit #8

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

Grand Clearfork Unit #8 (API 42-371-36447) is a well in Pecos County operated by Greenstone Energy LLC, completed April 11, 1994 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued January 4, 1994, permitted to 3,275 ft.

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

Completion filings report 2 formation tops, including Glorieta, Clear Fork.

Its lease has reported 676K barrels of oil and 19 mcf of gas since January 1993, last reporting volume in February 2026. The lease carries 39 wells, so these are lease totals, not this well alone.

It holds an active disposal or injection permit, with 42K barrels injected in the 12 months reported through May 2025.

Operator of record

Greenstone Energy LLC

Permitted by Grand Operating, Inc.; the EWA schedule now lists a different operator.

Based in: Houston, TX
P-5 status: Active (A)
P-5 last filed: Nov 4, 2025
Permits on file: 4
Phone: (214) 770-1836

Watch this operator Watch Pecos County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Greenstone Energy LLC
Production reports	Greenstone Energy, LLCthrough Feb 2026
Latest permit	Grand Operating, Inc.Jan 4, 1994

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

3,275: total depth, ft
2: permits on file
Jan 4, 1994: last permit issued
Apr 11, 1994: completed
676K: cumulative oil, bbl
19: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Apr 11, 1994
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; they carry 39 wells in total, so volumes are shared.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Grand Clearfork Unit O-10-28312	Brown & Thorp, East (Tubb)	Greenstone Energy, LLC	39	676K	19	Jan 1993 – Feb 2026

Oil, barrels lease total

Last 12 months 146 · prior 12 2,051(-93%)

Chain of custody

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

1Lawrence, C. F. & Assoc. Inc.Jan 1993 → May 1993
2Grand Operating, Inc.Jun 1993 → Nov 1998
3Ibex Resources, LLCDec 1998 → Jul 1999
4Ibex Resources Operating, LLCAug 1999 → Jun 2001
5SDG Resources L.P.Jul 2001 → May 2006
6Torch Energy Services, Inc.Jun 2006 → Dec 2008
7Resaca Operating CompanyJan 2009 → Jun 2011
8Coronado Minerals, LLCJul 2011 → Oct 2012
9Trace Operating, LLCNov 2012 → Jun 2018
10Apv McCamey LLCJul 2018 → Jul 2020
11Greenstone Energy, LLCSep 2020 → Feb 2026
12Southwest Operating Co TX, Inc.Aug 2021 → Aug 2021

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
419888-98	Drill	Grand Operating, Inc.	Feb 9, 1994	Jan 4, 1994	Mar 15, 1994	3,300
419888-99	Drill	Grand Operating, Inc.	Jan 4, 1994	Jan 4, 1994	—	3,300

Completions

Completed	Lease	Field	Operator	Status	Depth
Apr 11, 1994	Grand Clearfork Unit O-10-28312	Brown & Thorp East (Tubb)	Greenstone Energy LLC	Injection	3,275

Formation tops

As filed on W-2/G-1. Subsea from 2,410 ft elevation.Download CSV →

Formation	MD ft	Subsea
Glorieta	2,372	38
Clear ForkCLEARFORK	2,509	-99
Clear ForkLOWER CLEARFORK	3,034	-624

Perforations

Perforated and open-hole intervals.

From	To	Type
3,048	3,192	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	422	11	250 S
4.5	3,269	7.875	830 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →

Suffix	RRC record date	W-2 / G-1 date	Logs referenced
00	Feb 13, 1995	Oct 20, 1994	—
00	Dec 23, 1994	—	—

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.

Wellbore filings for 42-371-36447 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-371-36447 → scanned completion filings

Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

42K: bbl, last 12 reported months
2.13M: bbl, all reported
May 2025: reported through

UIC	Kind	Status	Permitted bbl/d	Max psi	Zone ft
000080424	H-1 Injection	Active	1,000	1,825	2,616–3,192

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

Last 12 months 42,000 · prior 12 49,275(-15%)

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/37136447, documented in the API reference.