WELL · 42-133-36367 · DISTRICT 7
Grimshaw J.R. #4501
Eastland County · Desdemona field · Horizontal
Grimshaw J.R. #4501 (API 42-133-36367) is a horizontal well in Eastland County operated by Sun Expl. & Prod. CO.-Abilene, completed April 12, 1985.
The RRC has issued 2 drilling permits (amended once) between 1985 and 2007, permitted to 4,000 ft.
It was permitted by Square One Energy, Inc. and has since transferred to Sun Expl. & Prod. CO.-Abilene on the wellbore schedule.
Completion filings report 4 formation tops, including Duke Sand, Duffer, Barnett, Ellenburger.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Square One Energy, Inc.; the EWA schedule now lists a different operator.
Dallas, TX · P-5 Y · 1,326 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sun Expl. & Prod. Co.-Abilene |
| Production reports | Morris R. Greenhaw Oil&gas, Incthrough Mar 2026 |
| Latest permit | Square One Energy, Inc.Feb 16, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,000
- total depth, ft
- 3
- permits on file
- Feb 16, 2007
- last permit issued
- Apr 12, 1985
- completed
- 0
- cumulative oil, bbl
- 44.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 12, 1985
- 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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Desdemona Field Unit G-8-118436 | Desdemona | Morris R. Greenhaw Oil&gas, Inc | 1 | 0 | 30.4K | Jan 1993 – Jul 2026 |
| Desdemona Field Unit G-8-247639 | Eastland County Regular | Morris R. Greenhaw Oil&gas, Inc | 1 | 0 | 13.9K | Apr 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 438 · prior 12 938(-53%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1North Ridge CorporationJan 1993 → Dec 1995
- 2Greenhaw, Morris R Oil & Gas IncJan 1996 → Mar 2004
- 3Greenhaw Energy, IncFeb 2001 → Sep 2003
- 4Square One Energy, Inc.Apr 2004 → Jun 2015
- 5Morris R. Greenhaw Oil&gas, IncDec 2015 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 633683-98 | Recompletion | Square One Energy, Inc. | Mar 15, 2007 | Feb 16, 2007 | Mar 19, 2007 | 4,000 |
| 633683-99 | Recompletion | Square One Energy, Inc. | Feb 16, 2007 | Feb 16, 2007 | — | 4,000 |
| 267973-99 | Drill | Sun Expl. & Prod. Co.-Abilene | Feb 27, 1985 | Feb 27, 1985 | Mar 9, 1985 | 3,400 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-118436 | — | — | — | — |
| — | — G-8-247639 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 1,372 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Duke Sand | 2,719 | -1,347 |
| DufferDUFFER LIME | 3,130 | -1,758 |
| BarnettBARNETT SHALE | 3,257 | -1,885 |
| Ellenburger | 3,370 | -1,998 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,719 | 2,784 | Open hole |
| 3,150 | 3,158 | Perforated |
| 3,295 | 3,315 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 266 | 16 | 400 S |
| 13.375 | 266 | 17 | 400 S |
| 13.375 | 266 | — | 400 S |
| 9.625 | 2,719 | 12.25 | 800 S |
| 9.625 | 2,719 | — | 800 S |
| 5.5 | 3,407 | 7.875 | 500 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 →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 25, 2009 | Mar 13, 2009 | Yes |
| 00 | Jun 4, 2009 | — | — |
| 00 | Oct 24, 1985 | Oct 10, 1985 | — |
| 00 | Oct 19, 1985 | — | — |
| 00 | Aug 15, 1985 | Jul 29, 1985 | — |
| 00 | Aug 9, 1985 | — | — |
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 42-133-36367 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-133-36367 → scanned completion filings
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/13336367, documented in the API reference.