WELL · 42-499-31730 · DISTRICT 6
Clark J. M. #4
Wood County · Coke field · Vertical
Clark J. M. #4 (API 42-499-31730) is a well in Wood County operated by Glori Energy Holdings Inc., completed June 29, 1991.
The RRC has issued one drilling permit, issued March 26, 1991, permitted to 6,700 ft.
It was permitted by Kerr-Mcgee Corporation and has since transferred to Glori Energy Holdings Inc. on the wellbore schedule.
Completion filings report 6 formation tops, including Denton, Fort Worth, Duck Creek, Kiamichi.
Its 3 leases have reported 1.78M barrels of oil and 38K mcf of gas since January 1993, last reporting in July 2026. The leases carry 61 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Kerr-McGee Corporation; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 13, 2017 · 7 permits on file · (832) 412-1424
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Glori Energy Holdings Inc. |
| Production reports | GTG Operating, LLCthrough Feb 2026 |
| Latest permit | Kerr-McGee CorporationMar 26, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,700
- total depth, ft
- 1
- permits on file
- Mar 26, 1991
- last permit issued
- Jun 29, 1991
- completed
- 1.78M
- cumulative oil, bbl
- 38K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 29, 1991
- 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 3 leases this well is completed on; they carry 61 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Coke (Paluxy) Unit O-6-15483 | Coke | GTG Operating, LLC | 29 | 773K | 35.4K | Sep 2015 – Jul 2026 |
| Clark, J. M. O-6-238 | Coke | Glori Energy Holdings Inc. | 7 | 821K | 2.51K | Jan 1993 – Jun 2016 |
| Radney O-6-239 | Coke | Glori Energy Holdings Inc. | 25 | 182K | 62 | Jan 1993 – Jun 2016 |
Oil, barrels lease total
Last 12 months 33,044 · prior 12 51,479(-36%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Phillips Petroleum CompanyJan 1993 → Jul 1995
- 2Kerr-McGee CorporationJan 1993 → Jul 1996
- 3Noble & Cantrell Expl. Co., Inc.Aug 1995 → Jul 2006
- 4Nuevo Energy CompanyAug 1996 → Feb 1998
- 5Hunt, Wm. Herbert, Trust Est.Mar 1998 → Sep 1998
- 6Petro-Hunt, L.L.C.Oct 1998 → Dec 2013
- 75-N EnergyAug 2006 → Aug 2006
- 8Shiloh Operating LLCSep 2006 → Sep 2007
- 9Southwest Operating, Inc.-TylerDec 2007 → Aug 2014
- 10Glori Energy Holdings Inc.Jan 2014 → Jan 2017
- 11Glori Energy Production LLCFeb 2017 → Jan 2018
- 12GTG Operating, LLCFeb 2018 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 383662-99 | Drill | Kerr-McGee Corporation | Jan 21, 1991 | Mar 26, 1991 | May 22, 1991 | 6,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-6-238 | — | — | — | — |
| — | — O-6-239 | — | — | — | — |
| — | — O-6-15483 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 527 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,292 | 6,341 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 800 | 11 | 300 S |
| 5.5 | 6,500 | 7.875 | 750 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 | Apr 18, 2016 | Jul 18, 1991 | Yes |
| 00 | Apr 15, 2016 | Jul 18, 1991 | Yes |
| 00 | Oct 18, 1991 | Jul 18, 1991 | Yes |
| 00 | Sep 23, 1991 | — | — |
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 42-499-31730 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-499-31730 → 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/49931730, documented in the API reference.