WELL · 42-409-33055 · DISTRICT 4
Welder-Gulley #2
San Patricio County · Oneil (5500) field · Producing · Vertical
Welder-Gulley #2 (API 42-409-33055) is a well in San Patricio County operated by Sun Exploration Inc., completed January 22, 2016 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 29, 2015, permitted to 7,500 ft.
It was permitted by Mertz Energy LLC and has since transferred to Sun Exploration Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Catahoula, Miocene (undifferentiated), Vicksburg.
Its lease has reported 21.3K barrels of oil and 14.3K mcf of gas since January 2016, last reporting in July 2026.
Operator of record
Permitted by Mertz Energy LLC; the EWA schedule now lists a different operator.
Alice, TX · P-5 Y, filed Aug 4, 2025 · 1 permits on file · (361) 227-7710
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sun Exploration Inc. |
| Production reports | Sun Exploration, Inc.through Apr 2026 |
| Latest permit | Mertz Energy LLCOct 29, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,500
- total depth, ft
- 1
- permits on file
- Oct 29, 2015
- last permit issued
- Jan 22, 2016
- completed
- 21.3K
- cumulative oil, bbl
- 14.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2016 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 22, 2016
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Welder-Gulley O-4-13985 | Oneil (5500) | Sun Exploration, Inc. | 1 | 21.3K | 14.3K | Jan 2016 – Jul 2026 |
Oil, barrels lease total
Last 12 months 65 · prior 12 713(-91%)
Gas, mcf lease total
Last 12 months 1,116 · prior 12 1,488(-25%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mertz Energy LLCFeb 2016 → Mar 2017
- 2Poco LLCJun 2017 → Mar 2019
- 3Sun Exploration, Inc.Apr 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 811549-99 | Drill | Mertz Energy LLC | Oct 28, 2015 | Oct 29, 2015 | Nov 24, 2015 | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-13985 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 8 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI | 3,700 | -3,692 |
| CatahoulaCATAHOULA-FRIO - INJECTION/DISPO | 3,700 | -3,692 |
| Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC | — | — |
| Vicksburg | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,456 | 5,464 | Perforated |
| 5,470 | 5,478 | Perforated |
| 6,012 | 6,023 | Perforated |
| 6,358 | 6,364 | Perforated |
| 6,390 | 6,392 | Perforated |
| 6,396 | 6,400 | Perforated |
| 6,414 | 6,421 | Perforated |
| 6,423 | 6,435 | Perforated |
| 6,451 | 6,455 | Perforated |
| 6,464 | 6,469 | Perforated |
| 6,472 | 6,486 | Perforated |
| 6,834 | 6,844 | Perforated |
| 6,852 | 6,872 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,242 | 12.25 | 525 S |
| 5.5 | 7,440 | 7.875 | 1,350 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 | Mar 1, 2016 | Feb 18, 2016 | Yes |
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 42-409-33055 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-33055 → 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/40933055, documented in the API reference.