WELL · 42-255-30577 · DISTRICT 2
N. P. U. Porter Guy #4 U
Karnes County · Tulsita-Wilcox (7 900) field · Vertical
N. P. U. Porter Guy #4 U (API 42-255-30577) is a well in Karnes County operated by Pennzoil Exploration & Prod. CO., completed July 20, 1977.
The RRC has issued 3 drilling permits between 1977 and 1993, permitted to 8,500 ft.
Completion filings report 9 formation tops, including Recklaw, Reklaw, Slick, Luling.
No lease production has been reported under this well’s leases.
Operator of record
Pennzoil Exploration & Prod. Co.
Carthage, TX · P-5 Y, filed Mar 22, 2001 · 1,023 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Pennzoil Exploration & Prod. Co. |
| Production reports | Paleo Oil Company LLCthrough Apr 2026 |
| Latest permit | Pennzoil Exploration & Prod. Co.Jul 22, 1993 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 3
- permits on file
- Jul 22, 1993
- last permit issued
- Jul 20, 1977
- completed
- 0
- cumulative oil, bbl
- 3.18M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 20, 1977
- 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 4 leases this well is completed on; they carry 4 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Npu (Porter -4U ) G-2-73338 | Tulsita-Wilcox ( 7,700) | Paleo Oil Company LLC | 1 | 0 | 565K | Jan 1993 – Jul 2026 |
| Npu (Porter -4L) G-2-146750 | Tulsita-Wilcox ( Luling) | Paleo Oil Company LLC | 1 | 0 | 2.62M | Aug 1993 – Jul 2026 |
| N.P.U. Porter, Guy G-2-145718 | Tulsita-Wilcox ( Mackhank) | Pennzoil Exploration & Prod. Co. | 1 | 0 | 0 | May 1993 – Aug 1993 |
| N. P. U. Porter, Guy G-2-73337 | Tulsita-Wilcox (7,900) | Pennzoil Exploration & Prod. Co. | 1 | 0 | 0 | Jan 1993 – May 1993 |
Gas, mcf lease total
Last 12 months 9,441 · prior 12 11,557(-18%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Pennzoil Exploration & Prod. Co.Apr 1993 → Feb 1999
- 2Pennzenergy Exp. & Prod., L.L.C.Mar 1999 → Mar 2000
- 3Devon Energy Production Co, L.P.Apr 2000 → Apr 2005
- 4Legend Natural Gas II, LPMay 2005 → Feb 2015
- 5Trinity River Energy Oper, LLCApr 2015 → Oct 2017
- 6Wagner Oil CompanyNov 2017 → Jan 2021
- 7Fletcher Operating, LLCFeb 2021 → Mar 2022
- 8Paleo Oil Company LLCApr 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 414065-99 | Recompletion | Pennzoil Exploration & Prod. Co. | Jul 20, 1993 | Jul 22, 1993 | Aug 12, 1993 | 7,150 |
| 411933-99 | Recompletion | Pennzoil Exploration & Prod. Co. | May 20, 1993 | May 25, 1993 | Apr 17, 1993 | 7,500 |
| 1914-99 | Drill | Pennzoil Producing Co. | Jun 28, 1977 | Jun 28, 1977 | Jul 8, 1977 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-2-73337 | — | — | — | — |
| — | — G-2-73338 | — | — | — | — |
| — | — G-2-145718 | — | — | — | — |
| — | — G-2-146750 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 393 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Recklaw | 6,785 | -6,392 |
| Reklaw | 6,785 | -6,392 |
| Slick | 6,946 | -6,553 |
| Luling | 7,032 | -6,639 |
| Massive | 7,298 | -6,905 |
| 7600 Upper | 7,542 | -7,149 |
| 7600' Upper | 7,542 | -7,149 |
| 7900 | 7,868 | -7,475 |
| 7900' | 7,868 | -7,475 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,032 | 7,036 | Perforated |
| 7,040 | 7,068 | Perforated |
| 7,214 | 7,222 | Perforated |
| 7,226 | 7,236 | Perforated |
| 7,638 | 7,643 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,565 | 14.75 | 1,125 S |
| 2.875 | 8,025 | 9.875 | 1,450 S |
| 2.875 | 8,044 | 9.875 | 1,450 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 | Dec 17, 1993 | Sep 9, 1993 | Yes |
| 00 | Oct 11, 1993 | — | — |
| 00 | Aug 10, 1993 | Jun 11, 1993 | Yes |
| 00 | Jul 8, 1993 | — | — |
| 00 | Jan 12, 1984 | Sep 30, 1977 | — |
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 42-255-30577 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-255-30577 → 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/25530577, documented in the API reference.