WELL · 42-367-31681 · DISTRICT 7
Clark Unit #4
Parker County · Reno (Congl. Upper) field · Vertical
Clark Unit #4 (API 42-367-31681) is a well in Parker County operated by Fagadau Energy Corporation, completed September 22, 1984.
The RRC has issued 3 drilling permits between 1979 and 2005, permitted to 6,200 ft.
Completion filings report 4 formation tops, including Caddo, Grand Sand, Big Saline, Marble Falls.
No lease production has been reported under this well’s leases.
Operator of record
Dallas, TX · P-5 Y, filed Jan 4, 2008 · 269 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Fagadau Energy Corporation |
| Production reports | BRG Lone Star Ltd.through Apr 2026 |
| Latest permit | Fagadau Energy CorporationJan 6, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,200
- total depth, ft
- 3
- permits on file
- Jan 6, 2005
- last permit issued
- Sep 22, 1984
- completed
- 0
- cumulative oil, bbl
- 356K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 22, 1984
- 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 |
|---|---|---|---|---|---|---|
| Clark Unit G-8-206732 | Caddo (3440) | Riverbirch Resources, LLC | 1 | 0 | 274K | Jul 2004 – Jul 2026 |
| Clark Unit G-8-112980 | Reno (Congl. Upper) | Fagadau Energy Corporation | 1 | 0 | 82.1K | Jan 1993 – Jul 2004 |
Gas, mcf lease total
Last 12 months 6,733 · prior 12 7,292(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Fagadau Energy CorporationJan 1993 → Apr 2006
- 2Primexx Operating CorporationMay 2006 → Sep 2015
- 3BRG Lone Star Ltd.Oct 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 555615-99 | Recompletion | Fagadau Energy Corporation | Jan 3, 2005 | Jan 6, 2005 | — | 6,107 |
| 250680-99 | Recompletion | Diamond Shamrock Exploration Co. | Aug 20, 1984 | Sep 7, 1984 | — | 4,600 |
| 52582-99 | Drill | Diamond Chemicals Company | Jul 10, 1979 | Jul 10, 1979 | Jul 13, 1979 | 6,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-112980 | — | — | — | — |
| — | — G-8-206732 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 764 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Caddo | 3,319 | -2,555 |
| Grand Sand | 4,322 | -3,558 |
| Big Saline | 4,973 | -4,209 |
| Marble Falls | 5,987 | -5,223 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,376 | 3,406 | Perforated |
| 4,329 | 4,333 | Perforated |
| 4,338 | 4,362 | Perforated |
| 4,400 | 4,412 | Perforated |
| 4,434 | 4,436 | Perforated |
| 4,449 | 4,467 | Perforated |
| 5,487 | 5,510 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 796 | 12.25 | 470 S |
| 2.375 | 5,409 | — | — |
| 5.5 | 6,107 | 7.875 | 535 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 7, 2005 | Sep 1, 2004 | Yes |
| 00 | Mar 10, 2005 | — | — |
| 00 | Nov 14, 1984 | Oct 5, 1984 | — |
| 00 | Nov 8, 1984 | Sep 22, 1984 | — |
| 00 | Jan 12, 1984 | Dec 14, 1979 | — |
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 42-367-31681 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-367-31681 → 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/36731681, documented in the API reference.